CN113975779A

CN113975779A - Flexible self-adaptation protective equipment

Info

Publication number: CN113975779A
Application number: CN202111248950.2A
Authority: CN
Inventors: 不公告发明人
Original assignee: Xiamen Tiance Material Technology Co ltd
Current assignee: Xiamen Tiance Material Technology Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-01-28
Anticipated expiration: 2041-10-26
Also published as: CN113975779B

Abstract

The invention discloses a flexible self-adaptive protector which is characterized by comprising a dilatant energy-absorbing assembly composed of dilatant polymer, wherein the dilatant energy-absorbing assembly is combined with at least a fastener and/or a shaping element to form the wearable protector; the dilatant energy absorbing assembly has a hardness of no greater than 90A or 70C or 50D; under the action of the fastener and/or the shaping piece, the attaching degree of the dilatant energy-absorbing assembly and the protected part is not lower than 30%. The flexible self-adaptive protective clothing has good protection and comfort, and is not easy to fall off or shift.

Description

Flexible self-adaptation protective equipment

Technical Field

The invention relates to a protective tool, in particular to a flexible self-adaptive protective tool.

Background

Sports injuries are a major problem facing humans, especially for sports enthusiasts, professional athletes and the elderly, and the losses caused by sports are more like shadow following. Various protective equipment products come out endlessly, but are often heavy or cause inconvenient movement, and the protection function is quite limited. The joint is one of the most vulnerable joints in the human body, such as the knee joint, hand joint, ankle, elbow joint, etc. Some sheathing products with elastic elements are often used to provide joint fit protection, but such products also have limited protection capabilities and are less able to cope with multiple scene changes during motion. Therefore, a need exists for a new class of adaptive, flexible, adaptive brace products that are tight-fitting to address the problem of existing product applicability.

Disclosure of Invention

Against the background, the invention is realized by the following technical scheme:

a flexible adaptive protector comprising a dilatant energy absorbing component of a dilatant polymer, said dilatant energy absorbing component being combined with at least a fastener and/or a shaping element to form said protector which is wearable; the dilatant energy absorbing assembly has a hardness of no greater than 90A or 70C or 50D; under the action of the fastener and/or the shaping piece, the attaching degree of the dilatant energy-absorbing assembly and the protected part is not lower than 30%.

In the present invention, in order to achieve close fitting and self-adaptation to the protected part, the skin material of the protector, the outer layer material of the dilatant energy-absorbing member, and the dilatant energy-absorbing member itself must have good flexibility and appropriate hardness. The dilatant energy absorbing assembly has a hardness of no more than 90A or 70C or 50D under normal conditions (ambient temperature and normal test methods), preferably no more than 85A or 65C or 40D, more preferably no more than 60A or 30C or 15D, and most preferably no more than 30A or 15C or 10D. The fabrics, fibers, frames, skins, surface coatings, bags, pouches, tubes, etc. used therein are also preferably low in stiffness and/or sufficiently flexible to be able to flex freely; the material of the skin, surface coating, bag, pouch, tube is preferably an elastomer, more preferably an elastomer having a hardness of not more than 85A or 65C or 40D, and even more preferably an elastomer having a hardness of not more than 60A or 30C or 15D.

In the invention, the flexible adaptive dilatant energy-absorbing component can be tightly attached to a protected part to the maximum extent through the self adaptive molding and the elastic/tensile action of the fastening piece and/or the shaping piece. All other accessories do not affect the flexibility characteristics of the brace of the present invention, for example, other accessories must be flexible, bendable, deformable, or have a length or area small enough not to affect the bendability, flexibility, deformability of the brace. Based on the flexibility and the adaptability of the dilatant energy absorbing component and the protector, the degree of fit of the dilatant energy absorbing component to the protected part after the protector is worn is not less than 30%, preferably not less than 40%, more preferably not less than 50%, still more preferably not less than 60%, still more preferably not less than 70%; the degree of fit of the protector to the object to be protected/human body after wearing is preferably not less than 30%, preferably not less than 40%, more preferably not less than 50%, still more preferably not less than 60%, still more preferably not less than 70%.

According to a preferred embodiment of the invention, the dilatant energy-absorbing assembly has a hardness of not more than 10A or 5C and the fit of the dilatant energy-absorbing assembly to the protected area is not less than 90% under the action of the fasteners and/or the shaping means.

According to a preferred embodiment of the invention, the dilatant energy-absorbing component has a stiffness selected from the group consisting of 10-20A or 5-10C, and the fit of the dilatant energy-absorbing component to the protected area is not less than 80% under the action of the fastener and/or the forming member.

According to a preferred embodiment of the invention, the dilatant energy-absorbing component has a stiffness selected from the group consisting of 20-30A or 10-15C, and the fit of the dilatant energy-absorbing component to the protected area is not less than 70% under the action of the fastener and/or the forming member.

According to a preferred embodiment of the invention, the dilatant energy-absorbing component has a stiffness selected from the group consisting of 30-40A or 15-20C, and the fit of the dilatant energy-absorbing component to the protected area is not less than 60% under the action of the fastener and/or the forming member.

According to a preferred embodiment of the invention, the dilatant energy-absorbing component has a stiffness selected from 40-50A or 20-25C and fits not less than 50% to the protected area under the action of the fastener and/or the forming member.

In the present invention, the fastening means is a member/accessory/component capable of fixing the protector to the protected part, and has a fastening function, and includes, but is not limited to, a knottable fabric, an elastic band, an elastic fabric, a band, a rib, a thread, a belt, a leather strip, a hollow tube, a spring, and the like, and a hook and loop fastener, a zipper, a sleeve, clothes, trousers, a sock, a glove, and a headgear, and preferably, an elastic band, an elastic fabric, a rib, a belt, a leather strip, a spring, and more preferably, a three-dimensional woven sleeve, a lycra sleeve, an elastic body elastic band, and the like. In the present invention, the fastening element may be used to fix the protective device directly, or used together with other locking elements having a locking function to fix the protective device, including but not limited to a lock, a buckle, a hook and loop fastener, a zipper, a button, a hook and loop fastener, a strap, and a magnetic fastener.

In the present invention, the shaping member refers to a member/accessory/component capable of wearing the protector on a protected part, and is manufactured into a final wearable or usable protector product by sewing or other manufacturing methods together with the dilatant energy absorbing member, and the like, and is generally made of cloth/fabric, flexible plastic, leather, film, and the like, and includes, but is not limited to, cloth, elastic fabric, other fabric, three-dimensional woven material, 3D printed material, open-cell or semi-open-cell foam material, leather (natural/artificial), nonwoven fabric, thread, spring, tube, plate, strip, and film (including hollow-out type). In the invention, the fastener can be used as a forming piece; if the dilatant energy absorbing assembly is integral with the fastener and used directly as a protector, there may be no additional shaping member.

In the invention, the dilatancy contained in the dilatancy energy-absorbing assembly is intrinsic dilatancy, i.e. dynamic dilatancy, vitrification dilatancy, entanglement dilatancy, and optionally also comprises dispersive dilatancy and/or aerodynamic dilatancy, which can be used as a complement to the intrinsic dilatancy and together constitute the dilatancy energy-absorbing assembly of the invention.

According to a preferred embodiment of the invention, the polymer matrix of the dilatant energy absorbing assembly is made of a single component of an intrinsic dilatant polymer.

According to a preferred embodiment of the invention, the polymer matrix of the dilatant energy absorbing assembly is made of a multicomponent polymer composition comprising an intrinsically dilatant polymer.

According to a preferred embodiment of the invention, the polymer matrix of the dilatant energy-absorbing assembly consists of a dynamic dilatant polymer (composition).

According to a preferred embodiment of the invention, the polymer matrix of the dilatant energy-absorbing assembly consists of a vitreous dilatant polymer.

According to a preferred embodiment of the invention, the polymer matrix of the dilatant energy absorbing assembly consists of (consists of) an entangled dilatant polymer.

In the invention, the internal structure of the dilatant energy-absorbing component comprises but not limited to a pure solid structure, a pure hollow structure and a cellular structure.

In the present invention, the dilatant energy absorbing assembly, its profile/three-dimensional geometry, can be described in terms of a combination of a full profile and a fine outer three-dimensional geometry. The overall appearance refers to the overall appearance in the invention, mainly for the purpose of beauty and adaptation to different position requirements; the fine external three-dimensional geometrical configuration refers to a fine structure and is mainly considered for the functions of impact resistance, light weight, thinness, convenience in compact attachment and the like. The overall shape generally has a circular ring shape, a quasi-circular ring shape, an elliptical ring shape, a quasi-elliptical ring shape, a plate shape, a strip shape, a block shape, a sheet shape, a cover shape, a tile shape, a petal shape, a combination form thereof and the like (as shown in figure 2). The fine three-dimensional geometric configuration may include, but is not limited to, a three-dimensional through type (including hollow, facilitating bending, ventilation, weight reduction, etc.), an inward recessed angle type (facilitating bending, enhancing impact performance, etc.), a convex point type (massaging function, weight reduction, etc.), a wave type (facilitating bending, reducing weight, etc.), a groove type, a fish scale type, a hexagonal type, a triangular type, a diamond type, a disc type, and a combination thereof (as shown in fig. 3). Preferably, the design of grooves, wave shapes, concave angle shapes, three-dimensional penetrating fish scale shapes, hexagonal plate shapes, triangular plate shapes, rhombic plate shapes, combination forms thereof and the like which have low influence on the fitting degree after convenient ventilation, bending, weight reduction, bending or twisting exists.

In the present invention, the flexible adaptive protective equipment includes, but is not limited to, knee pad, elbow pad, helmet, shoulder pad, back pad, chest pad, rib pad, hip pad, ankle pad, wrist pad, caudal vertebra, meniscus pad, fist cover, palm pad (palm, sole), finger pad, toe pad, patella pad, neck pad, shin pad, head band, face pad, head cover, panty protective equipment, tight suit protective equipment. Preferred are knee pads, elbow pads, meniscus pads, boxing gloves, patella pads, shin pads, and more preferred are knee pads, elbow pads, meniscus pads, boxing gloves, patella pads. The protector of the present invention may be provided as a single protector or as a protector capable of protecting a plurality of parts, for example, tights capable of protecting at least two parts such as shoulder, elbow, back, chest, rib, neck, waist, and abdomen, and tights capable of protecting at least two parts such as coccyx, hip, crotch, thigh, shin, knee, meniscus, and patella; gloves or wristbands for simultaneously protecting wrist and fist joints and finger joints; gloves capable of protecting at least two parts of palms, inner sides and outer sides of fingers, fists and backs of hands; a head cover for protecting the head and neck; but the invention is not limited thereto. In embodiments of the present invention, the flexible adaptive brace also includes animal braces, such as dog braces, horse (including donkey, mule) braces, cattle braces, cat braces, and the like; but also the protective gear of other articles, including but not limited to antique protective gear, artwork protective gear, musical instrument protective gear, sports equipment protective gear, medical instrument protective gear, medicine protective gear, aircraft protective gear, spacecraft protective gear, light arms protective gear, naval vessel protective gear, vehicle protective gear, electronic product protective gear, robot protective gear.

In a preferred embodiment of the invention, the flexible adaptive brace is preferably selected from the group consisting of a sleeve knee brace, a sleeve meniscus brace, a sleeve elbow brace, a hoop patella brace, a sleeve ankle brace, a sleeve wrist brace, a sock foot brace, a flexible glove, a flexible fist, a flexible helmet, a hoop head brace, a tights brace, a sleeve leg brace; a strap knee protector, a strap meniscus protector, a strap elbow protector, a strap patella protector, a strap ankle protector, a strap wrist protector, a strap foot protector, a strap glove, a strap fist cover, a strap helmet, a strap other head protector, a strap leg protector; a half-sleeve knee pad, a half-sleeve meniscus protector, a half-sleeve elbow pad, a half-sleeve ankle protector, a half-sleeve wrist pad, a half-sock foot protector, a half-open flexible glove, a half-open flexible boxing glove, a half-open flexible helmet, a half-open tights protector, a half-open sleeve leg pad; a sleeve-shaped knee pad, a sleeve-shaped meniscus protector, a sleeve-shaped elbow pad, a round hoop-shaped patella protector, a sleeve-shaped ankle protector, a sleeve-shaped wrist pad, a sock-shaped foot protector, a flexible glove, a flexible boxing glove, a flexible helmet, a round hoop-shaped head protector, a tights-shaped protector, and a sleeve-shaped leg protector which are opened, closed, detached, and fastened by fasteners such as zippers, buckles, buttons, binding wires, magic tapes, and the like; a half-sleeve knee pad, a half-sleeve meniscus protector, a half-sleeve elbow pad, a half-sleeve ankle protector, a half-sleeve wrist pad, a half-sock foot protector, a half-open flexible glove, a half-open flexible fist cover, a half-open flexible helmet, a half-open tights protector, a half-open sleeve leg guard that is opened/closed by a fastener such as a zipper, a buckle, a button, a binding wire, a hook and loop fastener; a sleeve-shaped knee pad, a sleeve-shaped meniscus protector, a sleeve-shaped elbow pad, a round hoop-shaped patella protector, a sleeve-shaped ankle protector, a sleeve-shaped wrist pad, a sock-shaped foot protector, a flexible glove, a flexible fist cover, a flexible helmet, a round hoop-shaped head protector, a tights-shaped protector and a sleeve-shaped leg protector which are fastened by adding a zipper, a buckle, a button, a binding wire and a magic tape; the utility model discloses a pair of leg protector, including half cover barrel-shaped knee-pad, half cover barrel-shaped meniscus protective equipment that fasteners such as additional zip fastener, buckle, button, wiring, magic subsides fastened, half cover barrel-shaped elbow pad, half cover barrel-shaped ankle protective equipment, half cover barrel-shaped wrist band, half ankle protective equipment, half open flexible gloves, half open flexible fist cover, half open flexible helmet, half open tights form protective equipment, half open cover barrel-shaped legging. Wherein, the semi-sleeve shape, the semi-openness and the like mean that the sleeve and the like do not completely cover and a hollow area exists.

In an embodiment of the present invention, the flexible adaptive brace has the following structure:

according to a preferred embodiment of the present invention, there is provided a flexible adaptive brace comprising an elastic band as a fastener and a dilatant energy absorbing component comprising a combination of a configuration selected from the group consisting of, but not limited to, circular, quasi-circular, elliptical-circular, quasi-elliptical-circular, plate-like, bar-like, block-like, sheet-like, cap-like, tile-like, petal-like and combinations thereof and a three-dimensional geometry selected from the group consisting of, but not limited to, three-dimensional through-type, reentrant-angular, convex-point, wave-like, channel-like, fish-scale-like, hexagonal-like, triangular-like, diamond-like, disc-like and combinations thereof.

According to a preferred embodiment of the present invention there is provided a flexible adaptive brace comprising an elastic fabric as a fastener and a dilatant energy absorbing component in combination of a configuration selected from the group consisting of, but not limited to, circular, quasi-circular, elliptical-circular, quasi-elliptical-circular, plate, bar, block, sheet, cap, tile, petal and combinations thereof and a three-dimensional geometry selected from the group consisting of, but not limited to, three-dimensional through, reentrant, convex, wavy, grooved, fish-scale, hexagonal, triangular, diamond, disc and combinations thereof.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising a combination of at least two of a stretch band, an elasticized fabric, another fabric, and a catch member as a fastener; the shaping piece comprises at least two of cloth, elastic fabric, other fabric, three-dimensional woven material, 3D printing material, open-cell or semi-open-cell foam material, leather (natural/artificial), non-woven fabric, thread, spring, tube, plate, strip and film; and a dilatant energy absorbing component selected from the group consisting of a combination of a shape including, but not limited to, circular, quasi-circular, elliptical-circular, quasi-elliptical-circular, plate-like, strip-like, block-like, sheet-like, hood-like, tile-like, petal-like, and combinations thereof, and a three-dimensional geometric configuration selected from the group consisting of, but not limited to, a three-dimensional through-type, an inside-recessed corner type, a bump-like, a wave-like, a gutter-like, a fish-scale type, a hexagonal-sheet type, a triangular-sheet type, a rhomboid-sheet type, a disc-type, and combinations thereof; wherein the dilatant energy-absorbing assembly is removable.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic band as a fastener and a dilatant energy absorbing component selected from the group consisting of a combination of a configuration including, but not limited to, circular, quasi-circular, elliptical-circular, quasi-elliptical-circular, plate-like, bar-like, block-like, sheet-like, hood-like, tile-like, petal-like and combinations thereof and a three-dimensional geometric configuration selected from the group consisting of, but not limited to, three-dimensional through-type, reentrant-angular, convex-point-type, wave-like, groove-like, fish-scale-like, hexagonal-like, triangular-like, diamond-like, disc-like and combinations thereof; wherein the dilatant energy-absorbing assembly is removable.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component selected from the group consisting of a combination of a shape including but not limited to circular, quasi-circular, elliptical-circular, quasi-elliptical-circular, plate-like, bar-like, block-like, sheet-like, hood-like, tile-like, petal-like and combinations thereof and a three-dimensional geometric configuration selected from the group consisting of but not limited to three-dimensional through-type, reentrant-angular, convex-point, wave-like, groove-like, fish-scale-like, hexagonal-like, triangular-like, diamond-like, disc-like and combinations thereof; wherein the dilatant energy-absorbing assembly is removable.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising a combination of at least two of a stretch band, an elasticized fabric, another fabric, and a catch member as a fastener; the shaping piece comprises at least two of cloth, elastic fabric, other fabric, three-dimensional woven material, 3D printing material, open-cell or semi-open-cell foam material, leather (natural/artificial), non-woven fabric, thread, spring, tube, plate, strip and film; and a dilatant energy absorbing component selected from the group consisting of a combination of a shape including, but not limited to, circular, doughnut-like, elliptical ring-like, plate-like, strip-like, block-like, sheet-like, hood-like, tile-like, petal-like, and combinations thereof, and a three-dimensional geometric configuration selected from the group consisting of, but not limited to, a three-dimensional through-type, an inside reentrant corner-type, a bump-type, a wave-type, a gutter-type, a fish-scale-type, a hexagonal-type, a triangular-plate-type, a rhomboid-type, a disc-type, and combinations thereof.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve of elastic fabric as a fastener, and having a dilatant energy absorbing component of dilatant polymer, the dilatant energy absorbing component being located at the knee position; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy based on a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy based on a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyurethane based on the dynamic dilatancy of a dynamic covalent bond containing boron; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyurethane based on the dynamic dilatancy of a dynamic covalent bond containing boron; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector, which comprises an elastic band as a fastener and a common cloth as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic band as a fastener, an elastic fabric as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic band as a fastener, a three-dimensional woven material as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace, which contains an elastic band as a fastener, 3D printed material as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising a stretch band as a fastener, an open or semi-open cell foam material as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy based on a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic band as a fastener and leather as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy based on a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic band as a fastening element and a non-woven fabric as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising a stretch band as a fastener and a spring as a shape imparting element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic band as a fastener, an elastic fabric as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic band as a fastening element and a membrane as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic band as a fastener, an elastic fabric as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic band as a fastener, an elastic fabric as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic band as a fastener, an elastic fabric as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyurethane based on the dynamic dilatancy of a dynamic covalent bond containing boron; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic band as a fastener, an elastic fabric as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyurethane based on the dynamic dilatancy of a dynamic covalent bond containing boron; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic band as a fastener, an elastic fabric as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic band as a fastener, an elastic fabric as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic band as a fastener, an elastic fabric as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic band as a fastener, an elastic fabric as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories as well.

In the embodiment of the present invention, the protector may be formed with a surface pattern by a method such as knitting, 3D printing, injection molding, or calendering, may be formed with a surface pattern by sewing, needlework, or the like, or may be formed with a pattern by various other suitable printing methods.

In the invention, various adaptive protectors with flexibility, impact resistance, shock absorption, buffering, shape memory and portability can be obtained by reasonably designing and combining the aspects of the appearance/three-dimensional geometrical configuration, the internal structure, the material (a network structure, a chemical structure and other chemical and microscopic multilayer structures, and a fastener, an auxiliary material, and the whole protector (the structure of the protector such as a knee pad or a panty-shaped protector)) of the performance component, and the like, and can be used for protecting human bodies, even animal bodies and even articles.

Compared with the prior art, the invention has the following beneficial effects:

(1) the flexible adaptive protector provided by the invention has the characteristics of flexibility and adaptability, wherein the dilatancy energy-absorbing component used per se has the adaptivity based on at least one intrinsic dilatancy in dynamic dilatancy, vitreous dilatancy and entanglement dilatancy, and optionally comprises dispersive dilatancy and pneumatic dilatancy. The self-adaptability based on the intrinsic dilatancy is the organic combination of the viscoelasticity, deformation rate, resilience, hardness, mechanical strength, energy absorption and the like of the dilatancy energy-absorbing component and the dilatancy, so that the dilatancy energy-absorbing component has different performances under different motion states and speeds, and shows higher rigidity, higher elastic modulus and support, lower deformation rate, faster resilience and better energy absorption in high-speed motion (including stretching, compression, torsion and the like); better flexibility, lower modulus of elasticity and greater ductility, less stress are exhibited in low speed motion (including tension, compression, torsion, etc.). In addition, the inflatable and self-adaptive energy-absorbing assembly with flexibility and self-adaptability is combined with the fastener and/or the shaping piece, particularly the fastener and/or the shaping piece with elasticity to form the wearable flexible self-adaptive protective tool, the inflatable and self-adaptive energy-absorbing assembly can be better attached to a protection part under the matching action of the fastener and/or the shaping piece, and a good self-adaptive effect is provided for the protective tool under the combined action of organic combination of the assemblies; the protective equipment can intelligently and adaptively generate the viscoelasticity, the deformation rate, the rebound resilience, the hardness, the mechanical strength, the energy absorption and other changes of the component according to the change of a scene where a wearer is located, the requirements of the wearer on different scenes such as violent movement, relaxing movement, stillness and the like can be met simultaneously, on one hand, the tightening and jointing are carried out through flexible deformation, on the other hand, the shape matching and the memory of the protected part are realized through self-adaptive molding and creep deformation, and the energy absorption component can be more firmly fixed on the protected part, particularly on the joint part, so that better protection is provided. The traditional protective tool is easy to generate vibration, friction, tearing and the like in the process of exercise, and is easy to shift or fall off, so that the protective capability is reduced and even the protection fails; the joint and other parts also need enough movement, the use experience brought by the traditional protective tool with poor flexibility is poor, and the traditional protective tool often lacks enough impact resistance protection capability, so that the defects can be overcome. The protective clothing has both protectiveness and comfortableness, is not easy to fall off or shift, and is convenient to wear and take off. The characteristics can not be realized by the prior art, and the method has remarkable effect.

(2) The dilatancy energy-absorbing assembly used by the invention is composed of dilatancy polymers, the intrinsic dilatancy based on at least one of dynamic dilatancy, vitrification dilatancy and entanglement dilatancy is adopted to provide the self-adaptability and dilatancy effects of the system, the intrinsic dilatancy polymers are used as a matrix to construct the dilatancy energy-absorbing assembly, so that better creep property, plasticity and shape memory are conveniently obtained, and the compact attachment and protection are better performed. Simultaneously, but bloated fluidic polymer has direct forming, the plasticity is strong, stability is good, advantages such as application range is wide, can constitute integrated into one piece with bloated fluidic polymer self directly as the protective equipment, make protective equipment overall structure more succinct, design nature to structure and functionality is stronger, can utilize its bloated fluidic effect to absorb energy better, have more extensive range of application and wide application prospect, avoided adopting among the prior art that shear thickening fluid exists must use the bag, easy seepage breaks, poor stability, can't stereotype, defects such as protective equipment structure is miscellaneous, have apparent creativity. Meanwhile, the dynamic dilatancy, the vitreous dilatancy, the entanglement dilatancy, the optional dispersive dilatancy and the pneumatic dilatancy adopted in the invention have various characteristics. The dynamic dilatancy is wide in applicable temperature range, rich in structure, diverse in performance and most suitable for adjusting the elasticity; the vitrifying dilatancy temperature dependency is high, and the preparation of the component can be carried out according to different use temperature requirements; the entanglement dilatancy has better stability, is stable to light, heat, acid and alkali, and can more effectively provide stable dilatancy; the dispersivity dilatancy composition is rich, and can be filled in the assembly more conveniently; the pneumatic dilatancy belongs to the dilatancy of a physical layer, and different dilatancy performances can be realized through the design of a physical structure. By effectively selecting and combining the dilatancy, the dilatancy-based adaptivity which is widely applicable can be obtained.

(3) The flexible self-adaptive protective clothing provided by the invention has the advantages that the dilatant energy absorption assembly has various selectable shape structures, and the overall shape of the flexible self-adaptive protective clothing comprises but is not limited to a circular ring shape, a quasi-circular ring shape, an elliptical ring shape, a quasi-elliptical ring shape, a plate shape, a strip shape, a block shape, a sheet shape, a cover shape, a tile shape, a petal shape, a combination form and the like; in fine three-dimensional geometric configurations, including but not limited to three-dimensional through type (including hollow, easy to bend, breathable, light-weight, etc.), indent angle type (easy to bend, improved impact performance, etc.), bump type (massage function, light-weight, etc.), wave type (easy to bend, light-weight, etc.), groove type, fish scale type, hexagonal piece type, triangular piece type, diamond piece type, disc type, and combinations thereof; the internal structure includes, but is not limited to, a simple solid structure, a simple hollow structure, and a cell structure. Through the effective selection and combination of various structures, the protector has good designability and customizability.

(4) According to the flexible self-adaptive protective tool provided by the invention, the dilatancy energy-absorbing assembly optionally has self-adaptation based on self-repairability, and by introducing the self-repairability, in-situ repair and even real-time repair can be realized on a damaged area, so that the service life of the protective tool is greatly prolonged.

These and other features and advantages of the present invention will become apparent with reference to the following description of embodiments, examples and appended claims.

Drawings

FIG. 1 is a schematic view of an exemplary reentrant angular configuration of the present invention;

FIG. 2 is a schematic view of an exemplary open-celled reentrant angular configuration of the present invention;

FIG. 3 is a schematic view of an exemplary curved-edge reentrant angular configuration of the present invention;

FIG. 4 is a schematic view of an exemplary overall configuration of the present invention;

FIG. 5 is a schematic diagram of an exemplary refined three-dimensional geometry of the present invention;

FIG. 6 is a graph showing the impact resistance test of a sample of example 4 of the present invention, (a) a sample of the present invention, (b) a reference sample;

FIG. 7 is a graph showing the impact resistance test of samples of example 5 of the present invention, (a) a sample of the present invention, (b) a reference sample;

FIG. 8 is a graph showing the impact resistance test of a sample of example 9 of the present invention, (a) a sample of the present invention, (b) a reference sample;

FIG. 9 is a graph showing the impact resistance test of samples of example 10 of the present invention, (a) a sample of the present invention, (b) a reference sample;

FIG. 10 is a graph showing the impact resistance test of a sample of example 24 of the present invention, (a) a sample of the present invention, (b) a reference sample.

Detailed Description

Certain terms and nouns that will be referred to in the description of the invention are described and defined below.

For simplicity of description, in the description of the present invention, the term "and/or" is used to indicate that the term may include three cases selected from the options described before the conjunction "and/or," or selected from the options described after the conjunction "and/or," or selected from the options described before and after the conjunction "and/or.

It should be noted that, in the words "group", "series", "subfamily", "class", "subclass", "species" used herein to describe various structures, the range of the group is greater than that of the series, the range of the series is greater than that of the subfamily, the range of the class is greater than that of the subclass, and the range of the subclass is greater than that of the species, i.e., one group may have many series, one series may have many subfamilies, one subfamily may have many classes, one class may have many subclasses, and one subclass may have many varieties.

According to the invention, the flexible self-adaptive dilatant energy-absorbing assembly has a flexible characteristic, and can be shaped and memorize the shape of the protected part in a self-adaptive manner according to the appearance of the protected part under the action of the elastic force/tensile force of the fastener and/or the shaping piece, so that the tight fit with the protected part is achieved to the maximum extent. The dilatant energy-absorbing component can adaptively adjust elasticity, deformability, hardness, energy-absorbing property and the like according to the exercise intensity and/or the deformation/variation degree/speed of relevant parts and/or the intensity/speed of external impact and the like in the process of human body exercise. The flexible adaptive dilatancy energy-absorbing assembly has rate responsiveness and can embody dynamic adaptivity; under the low-speed movement/activity/movement/impact, the high-flexibility elastic damping rubber has better flexibility, lower elastic modulus, lower hardness and larger deformation, and plays a role in relieving and protecting; the high-speed motion/activity/impact can generate dilatancy, and generally has at least one of properties of higher elasticity, less deformation, increased hardness, improved energy absorption property and the like, better shock absorption, buffering, impact resistance, distortion prevention, joint displacement, external impact and the like, thereby protecting related parts from or reducing injury. The energy absorber assembly can return to its original shape after the motion/activity/movement is over or the impact is removed. The flexibility of the flexible adaptive dilatant energy absorbing assembly of the present invention is manifested in both plasticity (shape memory) and dilatancy (rate responsiveness). The flexible self-adaptive protective tool can overcome the defects that the traditional protective tool is poor in flexibility, the movement of the joints and other parts is stiff, the use experience is poor, and the protective tool is lack of sufficient impact resistance protection capability.

In the present invention, the degree of fit is the ratio of the area of the dilatant energy absorbing assembly/brace that can fit tightly against the protected part/body/object to the (internal) area of the protected part/body/object that can all be in contact with the protected part/body/object.

In the invention, the flexible adaptive dilatant energy-absorbing component can be tightly attached to a protected part to the maximum extent through the self adaptive molding and the elastic/tensile action of the fastening piece and/or the shaping piece. All other accessories do not affect the flexibility characteristics of the brace of the present invention, for example, other accessories must be flexible, bendable, deformable, or have a length or area small enough not to affect the bendability, flexibility, deformability of the brace. Based on the flexibility and the adaptability of the dilatant energy absorbing component and the protector, the degree of fit of the dilatant energy absorbing component to the protected part after the protector is worn is not less than 30%, preferably not less than 40%, more preferably not less than 50%, still more preferably not less than 60%, still more preferably not less than 70%; the degree of fit of the protector to the object to be protected/human body after wearing is preferably not less than 30%, preferably not less than 40%, more preferably not less than 50%, still more preferably not less than 60%, still more preferably not less than 70%. Traditional protective equipment produces vibrations, friction, tears etc. easily in the motion process, leads to the aversion of protective equipment or drops easily, leads to the protective capacities to descend and protects the failure even. According to the wearable flexible self-adaptive protective tool, the dilatancy energy-absorbing assembly with flexibility and self-adaptability is combined with the fastener and/or the shaping piece, particularly the fastener and/or the shaping piece with elastic force, so that the wearable flexible self-adaptive protective tool is combined, the dilatancy energy-absorbing assembly can be better attached to a protection part under the matching action of the fastener and/or the shaping piece, on one hand, the fastening and attaching are carried out through flexible deformation, on the other hand, the shape of the protection part is matched and memorized through self-adaptive molding and creep deformation, so that the inflatable energy-absorbing assembly can be more firmly fixed on the protection part, a certain attaching degree is ensured, better protection and self-adaptive effects are provided, and the higher the attaching degree is, the more remarkable the protection and self-adaptive effects are.

According to a preferred embodiment of the invention, the dilatant energy-absorbing component has a stiffness selected from 5-25A or not more than 15C and the fit of the dilatant energy-absorbing component to the protected area is not less than 75% under the action of the fastener and/or the forming member.

In the invention, the protector is characterized in that the fastener and/or the shape-giving piece and the dilatant energy-absorbing component are optionally integrated, namely the dilatant energy-absorbing component also serves as the fastener and/or the shape-giving piece and is optionally combined with other components such as cloth, elastic bands, elastic fabrics, buckles, belts, threads, sleeves, magic tapes, zippers, nails, buttons, bags and the like by means of attaching, sewing, bonding, embedding, stapling, welding and the like to be made into the protector for use; or the fastener and/or the forming member are different from the dilatant energy absorbing component, the dilatant energy absorbing component and the fastener and/or the forming member are combined by means of fitting, sewing, bonding, embedding, stapling, welding and the like, and optionally with other materials/components, such as cloth, elastic bands, buckles, belts, threads, sleeves, magic tapes, zippers, nails, buttons and the like to manufacture the protector; or further combined with more other components such as sleeves, skins, cartridges, bags, straps, supports, cleats, etc. into a brace product. Other components, such as logo pieces, decorative pieces, retroreflective pieces, wear resistant pieces, massage pieces, etc., may be punched, inlaid, glued, hung, mounted, used, etc., in place.

In the present invention, there may be one or more of any kind of (functional) accessory/component/part. The various fittings may be combined in any suitable manner, including but not limited to, stacked, connected, braided, filled, interlocked; the same type of accessory/component/unit can be used at the same location in one brace, or at different locations; different accessories/components/parts can be used at the same location in one brace or at different locations. In the present invention, when the same or different accessories/components/parts are combined in a stacking manner, the assembly may be selected from methods including, but not limited to, bag/pouch packaging, hook and loop fastening, glue bonding, thread stitching, nail fastening, snap fastening, slot fitting, and even fusion bonding. When using an adhesive means, it is preferred that the adhesive material be dynamic, facilitating better energy dissipation properties and tearability (reversible bonding). When the interlocking manner is adopted for the combination, various assembling methods used in the lamination manner may be adopted in addition to the mechanical interlocking.

In the present invention, the impact resistance, unless otherwise specified, refers specifically to the impact resistance protection property. Impact resistance may also refer to the intrinsic impact resistance of a material or component or brace, which refers to its property of not being destroyed under impact itself, in relation to its properties of modulus and toughness, which can be tested by relevant standard test methods, such as pendulum impact.

In the present invention, in addition to the dilatant energy-absorbing component described above, there may be other non-dilatant energy-absorbing components/non-dilatant impact-resistant elements. The impact-resistant piece does not necessarily have energy absorption performance, but can provide the impact resistance of the protector and also play a role in protecting protected parts. It can be selected from impact-resistant pieces including but not limited to metals, polymers, inorganic non-metallic materials and composite materials, and preferably polymer and polymer composite impact-resistant pieces with flexibility/bendability.

In embodiments of the present invention, the non-dilatant impact resistant member includes, but is not limited to, non-dilatant foam, three-dimensional knit, 3D printed structures, solid plastic panels, hollowed plastic panels, solid ceramic panels, hollowed ceramic panels, solid metal panels, hollowed metal panels, solid wood panels, hollow wood panels. In order for the brace to be flexible, the impact resistant element must be sufficiently small in length and/or area if it is not flexible/bendable.

In the present invention, macromolecules, fasteners, shaped parts, energy absorbing components of macromolecular (composite) materials, etc., which may be non-crosslinked and/or crosslinked, optionally contain dynamic covalent bonds and non-covalent/supramolecular interactions in addition to ordinary covalent bonds.

In the present invention, the term "common covalent bond" refers to a conventional covalent bond, which is an interaction between atoms through a pair of common electrons, is difficult to break at a common temperature (generally not higher than 100 ℃) and a common time (generally less than 1 day) and has no specific response to mechanical force, and includes, but is not limited to, common carbon-carbon bonds, carbon-oxygen bonds, carbon-hydrogen bonds, carbon-nitrogen bonds, carbon-sulfur bonds, nitrogen-hydrogen bonds, nitrogen-oxygen bonds, hydrogen-oxygen bonds, nitrogen-nitrogen bonds, etc.

In the present invention, the "dynamic unit" includes dynamic covalent bond and supramolecular interaction.

In the present invention, the term "dynamic covalent bond" refers to a covalent bond that is capable of reversibly breaking and reforming under appropriate conditions.

The "polymerization" reaction/action referred to in the present invention is a chain extension process/action, i.e., a polymer forming a linear, branched, cyclic, two-dimensional/three-dimensional cluster, three-dimensional infinite network structure by intermolecular reaction/action (including covalent chemical reaction and supramolecular action).

The term "crosslinking" reaction/action as used in the present invention refers to the process of intermolecular and/or intramolecular formation of products having a three-dimensional infinite network type by covalent bonds and/or non-covalent/supramolecular interactions. During the crosslinking process, the polymer chains generally grow continuously in two/three dimensions, gradually form clusters (which may be two-dimensional or three-dimensional), and then develop into a three-dimensional infinite network. Thus, crosslinking can be considered a special form of polymerization. The degree of crosslinking, just before a three-dimensional infinite network is reached during crosslinking, is called the gel point, also called the percolation threshold. A crosslinked product above the gel point (inclusive, the same applies hereinafter) having a three-dimensional infinite network structure, the crosslinked network constituting a whole and spanning the entire polymer structure; the crosslinked product below the gel point, which is only a loose inter-chain linking structure, does not form a three-dimensional infinite network structure, and does not belong to a crosslinked network that can constitute a whole across the entire polymer structure. Unless otherwise specified, the crosslinked structure in the present invention is a three-dimensional infinite network structure above the gel point, and the non-crosslinked structure includes linear and nonlinear structures with a degree of crosslinking of zero and a two-dimensional/three-dimensional cluster structure below the gel point.

In the present invention, "backbone" refers to a structure in the chain length direction of a polymer chain. For crosslinked polymers, the term "backbone" refers to any segment present in the backbone of the crosslinked network. For polymers of non-crosslinked structure, the "backbone", unless otherwise specified, refers to the chain with the most mer. Wherein, the side chain refers to a chain structure which is connected with the main chain of the polymer and is distributed beside the main chain; the "branched chain"/"branched chain" may have a side chain or other chain structure branched from any chain. Wherein, the "side group" refers to a chemical group which is connected with any chain of the polymer and is arranged beside the chain. Wherein, the "terminal group" refers to a chemical group attached to any chain of the polymer and located at the end of the chain. Unless otherwise specified, a pendant group refers specifically to groups and subgroups thereof having a molecular weight of not more than 1000Da attached to the side of the backbone of the polymer chain. When the molecular weight of a side chain, branch, or branched chain does not exceed 1000Da, itself and the groups thereon are considered pendant. For simplicity, side chains, branches, and branched chains are collectively referred to as side chains, unless otherwise specified. The "side chain" and "side group" may have a multi-stage structure, that is, the side chain/side group may be continued to have a side chain/side group, and the side chain/side group of the side chain/side group may be continued to have a side chain/side group. In the present invention, as not specifically stated, for hyperbranched and dendritic chains and their related chain structures, the outermost polymer segment may be regarded as a side chain, and the rest as a main chain; for polymers of the star configuration, each arm is considered a side chain. In the present invention, the "terminal group", "side group" and "side chain" also apply to a supramolecular monomer which undergoes supramolecular polymerization by supramolecular action and the resulting supramolecular polymer.

In the present invention, the terms used to describe the polymer molecular chain/supramolecular chain topology include, but are not limited to, linear, cyclic, branched, clustered, cross-linked, and combinations thereof.

The "linear" structure refers to a regular or irregular long chain shape of the polymer molecular chain/supramolecular chain, and is generally formed by connecting a plurality of repeating units on a continuous length, and the side groups in the polymer molecular chain/supramolecular chain generally do not exist as branched chains.

Wherein, the "cyclic" structure refers to that the polymer molecular chain/super molecular chain exists in the form of cyclic chain, which includes cyclic structures in the form of single ring, multiple rings, bridge ring, nested ring, grommet, wheel ring, etc.; as the "cyclic structure", it can be formed by intramolecular and/or intermolecular cyclization of a linear or branched polymer, and can also be produced by ring-expanding polymerization or the like.

Wherein, the "branched" structure refers to a structure containing side chains, branched chains, and branched chains on the polymer molecular chain/supermolecule chain, including but not limited to star, H, comb, dendritic, hyperbranched, and combinations thereof, and further combinations thereof with linear, cyclic, and cluster structures, such as a linear chain end connected to a cyclic structure, a cyclic structure combined with a comb structure, a dendritic chain end connected to a cyclic chain, and the like; for "side chain, branched chain and branched chain structures of polymer", it may have a multi-stage structure, for example, one or more stages of branches may be continued on the branches of polymer molecular chain/supermolecule chain. The branched structure may be further subjected to intramolecular and/or intermolecular reactions (crosslinking) to produce a cluster and/or crosslinked structure.

The "cluster" structure refers to a two-dimensional or three-dimensional structure below the gel point, which is generated by intramolecular and/or intermolecular reaction of polymer molecular chains/supramolecular chains.

The "cross-linked" structure refers to a three-dimensional infinite network structure of polymer molecular chains/supramolecular chains.

The "combination type" structure refers to a polymer structure containing two or more of the above topological structures, for example, a ring-shaped chain is used as a side chain of a comb-shaped chain, the ring-shaped chain has side chains to form a ring-shaped comb-shaped chain, the ring-shaped chain and a linear chain form a tadpole-shaped chain and a dumbbell-shaped chain, and the combination structure also includes different rings, different branches, different clusters and combination structures of other topological structures.

In the present invention, the term "common covalent crosslinking" refers to a crosslinked structure formed by common covalent bonds. In the present invention, the degree of cross-linking of the common covalent cross-links in the cross-linked network is above its gel point, which means that the cross-linked network is still present when only common covalent bonds (dynamic covalent components and supramolecular components are absent or both dissociated) are present in the cross-linked network.

In the present invention, the term "dynamic covalent crosslinking" refers to a crosslinked structure formed by dynamic covalent bonds, and the crosslinking degree of the crosslinked structure decreases when the dynamic covalent bonds are dissociated; wherein, the dynamic covalent cross-linked network refers to a cross-linked structure when only dynamic covalent cross-linking exists and the cross-linking degree is above the gel point; due to the existence of dynamic covalent bonds, the dissociation-bonding balance of the cross-linked network can be carried out under appropriate conditions, and the dynamic reversibility is realized.

In the present invention, the term "supramolecular cross-linking" refers to a cross-linking structure formed by the participation of supramolecular action, and the degree of cross-linking of the cross-linking structure decreases when supramolecular action is dissociated; wherein, the supermolecule cross-linked network refers to a cross-linked structure when only supermolecule is cross-linked and the cross-linking degree is above a gel point; due to the existence of the supermolecular groups/units, the supermolecular groups/units can perform the dissociation-bonding equilibrium of a cross-linking network under appropriate conditions, and have dynamic reversibility.

In the present invention, the "hybrid crosslinked network" refers to a crosslinked network in which at least two of dynamic covalent bonds, supramolecular interactions and common covalent bonds participate together to form a crosslinked structure, and the sum of the crosslinking degrees of the crosslinking modes is above the gel point. In the embodiment of the present invention, when hybrid crosslinking is present, each crosslinking system may be at least the gel point thereof or less, but the sum of the crosslinking degrees of the crosslinking systems must be at least the gel point of the whole crosslinking system. Wherein, the hybrid dynamic cross-linked network refers to a cross-linked network when the cross-linked structure contains dynamic covalent cross-links and supramolecular cross-links, and the sum of the cross-linking degrees of the two is above the gel point. Due to the existence of the dynamic unit, the compound can perform the dissociation-bonding balance of a cross-linking network under proper conditions, and has dynamic reversibility; meanwhile, due to the existence of various dynamic units, orthogonality and/or cooperativity and/or dissociation-bonding sequence can be realized between the dynamic units, so that the performance of the cross-linked network is further enriched; the combination of the dynamic unit and the non-dynamic unit can give full play to respective points and achieve the synergistic effect, thereby improving the performance of the material.

Wherein dynamic covalent crosslinking, supramolecular crosslinking and hybrid dynamic crosslinking are collectively called dynamic crosslinking; the dynamic covalent crosslinked network, supramolecular crosslinked network, and hybrid dynamic crosslinked network are collectively referred to as dynamic crosslinked network.

In the present invention, the crosslinking degree of a certain dynamic crosslink in the crosslinked network is above the gel point, which means that when only ordinary covalent bonds and such dynamic units are present in the crosslinked network, the crosslinked network still exists, and when such dynamic units are dissociated, the corresponding crosslinked network is degraded.

In the present invention, when the crosslinked network contains only dynamic crosslinks, the crosslinked network degrades once the dynamic units therein are dissociated, and can be decomposed into any one or any of the following secondary units: secondary units such as monomers, polymer chain fragments, polymer clusters, crosslinked polymer fragments, etc.; meanwhile, the dynamic cross-linked network and the secondary unit can realize mutual transformation and dynamic reversibility through the bonding and the dissociation of the one or more dynamic units and groups capable of forming the dynamic units contained in the dynamic cross-linked network, and can be re-cross-linked under specific conditions to form the cross-linked network.

In the present invention, the term "conventional covalent polymer" refers to a polymer which contains only conventional covalent bonds in the polymer chain and does not contain any dynamic units. In the present invention, the term "dynamic covalent polymer" refers to a polymer that contains both ordinary covalent bonds and dynamic covalent bonds, but does not contain any supramolecular interactions. In the present invention, the "supramolecular polymer" refers to a polymer that contains both common covalent bonds and supramolecular interactions, but does not contain any dynamic covalent bonds. In the present invention, the term "hybrid dynamic polymer" refers to a polymer containing both ordinary covalent bonds, dynamic covalent bonds and supramolecular interactions. In the present invention, the term "dynamic polymer" includes dynamic covalent polymers, supramolecular polymers and hybrid dynamic polymers.

In the present invention, the dynamic covalent bond includes, but is not limited to, boron-containing dynamic covalent bond, dynamic sulfur bond, dynamic selenium sulfur bond, dynamic selenium nitrogen bond, acetal dynamic covalent bond, dynamic covalent bond based on carbon-nitrogen double bond, dynamic covalent bond based on reversible radical, combinable exchangeable acyl bond, dynamic covalent bond based on induction of steric effect, reversible addition-fragmentation chain transfer dynamic covalent bond, dynamic siloxane bond, dynamic silicon ether bond, exchangeable dynamic covalent bond based on alkyl nitrogen heterocyclic onium, unsaturated carbon-carbon double bond capable of olefin cross metathesis reaction, unsaturated carbon-carbon triple bond capable of alkyne cross metathesis reaction, [2+2] cycloaddition dynamic covalent bond, [4+4] cycloaddition dynamic covalent bond, mercapto-Michael addition dynamic covalent bond, An amine alkene-michael addition dynamic covalent bond, a triazolinedione-indole based dynamic covalent bond, a diazacarbene based dynamic covalent bond, a benzoyl based dynamic covalent bond, a hexahydrotriazine based dynamic covalent bond, a dynamic exchangeable trialkylsulfonium bond, a dynamic acid ester bond, a diketene amine dynamic covalent bond. The specific structure of the dynamic covalent bond is described in specification [0058] to [0377] of patent 2020100686825.

In the present invention, the supramolecular interactions include, but are not limited to, metal-ligand interactions, ionic cluster interactions, ion-dipole interactions, host-guest interactions, metallophilic interactions, dipole-dipole interactions, halogen bond interactions, lewis acid-base pair interactions, cation-pi interactions, anion-pi interactions, benzene-fluorobenzene interactions, pi-pi stacking interactions, ionic hydrogen bonding interactions, radical cation dimerization interactions, phase separation, crystallization, hydrogen bonding interactions. The specific structure of said supramolecular interaction is described in patent 2020100686825 specifications [0380] - [0499 ].

In embodiments of the present invention, typical strong dynamic supramolecular interactions include, but are not limited to: a monodentate hydrogen bonding action, a bidentate hydrogen bonding action, a monodentate metal-ligand action, a bidentate metal-ligand action, an ionic clustering action, an ion-dipole action, a host-guest action, a metallophilic action, a dipole-dipole action, a halogen bonding action, a lewis acid-base pair action, a cation-pi action, an anion-pi action, a benzene-fluorobenzene action, a pi-pi stacking action, an ionic hydrogen bonding action, a radical cation dimerization; typical strong dynamic covalent bonds include, but are not limited to: boron-containing dynamic covalent bonds, metal acid ester dynamic covalent bonds, and reversible free radical-based dynamic covalent bonds. Among them, preferred are a bidentate hydrogen bond action, a bidentate metal-ligand action, an ionic cluster action, an ion-dipole action, a host-guest action, a Lewis acid-base pair action, an ionic hydrogen bond action, an inorganic boronic acid monoester bond, a saturated five-membered ring inorganic boronic acid ester bond, an unsaturated five-membered ring inorganic boronic acid ester bond, a saturated six-membered ring inorganic boronic acid ester bond, an unsaturated six-membered ring inorganic boronic acid ester bond, an organic boronic acid monoester bond, a saturated five-membered ring organic boronic acid ester bond, an unsaturated five-membered ring organic boronic acid ester bond, a saturated six-membered ring organic boronic acid ester bond, an unsaturated six-membered ring organic boronic acid ester bond (particularly, a saturated five-membered ring organic boronic acid ester bond/an unsaturated five-membered ring organic boronic acid ester bond/a saturated six-membered ring organic boronic acid ester bond/an unsaturated six-membered ring organic boronic acid ester bond) to which is linked to an aminomethyl benzene group, Inorganic borate silicone bonds, organic borate silicone bonds, dynamic titanate silicone bonds, more preferably a one-tooth hydrogen bonding action, a two-tooth hydrogen bonding action, a one-tooth metal-ligand action, an ionic action, an ion-dipole action, a host-guest action, an ionic hydrogen bonding action, an inorganic borate monoester bond, an organic borate monoester bond, a saturated five-membered ring organic borate bond/an unsaturated five-membered ring organic borate bond/a saturated six-membered ring organic borate bond/an unsaturated six-membered ring organic borate bond, an inorganic borate silicone bond, an organic borate silicone bond, a dynamic titanate silicone bond, because of high dynamic and good controllability.

In embodiments of the present invention, the normal covalent polymer/weak dynamic covalent polymer/strong dynamic covalent polymer/weak dynamic supramolecular polymer/strong dynamic supramolecular polymer may have any suitable topology, including but not limited to linear structure, branched structure, cyclic structure, clustered structure, cross-linked structure, and combinations of two or any of the above.

In an embodiment of the present invention, the supramolecular polymer may be formed by supramolecular polymerization of small molecule supramolecular monomers and/or polymeric supramolecular monomers and/or block polymeric supramolecular monomers and/or other supramolecular monomers, preferably small molecule supramolecular monomers. Wherein, the sum of the molecular weights of all connecting groups of the small molecular supermolecular monomer which are connected with the supermolecular group/unit does not exceed 1000Da, and the number of skeleton atoms of each connecting group does not exceed 20; preferably the small molecule supramolecular monomers have a molecular weight of not more than 1000 Da. Wherein the sum of the molecular weights of the individual linking groups linking the supramolecular groups/units in said polymeric supramolecular monomer exceeds 1000 Da. Wherein said block polymer supramolecular monomer is as defined above; wherein said other supramolecular monomers include, but are not limited to, particulate supramolecular monomers comprising supramolecular groups/units, supramolecular monomers compatible only with the hard phase in the heterophasic supramolecular polymer but free of other supramolecular groups/units. Wherein, the particle shape includes but not limited to sphere, ellipsoid, sheet, fiber, cube, cuboid, rod, and irregular shape. The particulate supramolecular monomers may include, but are not limited to, organic particles and organic/inorganic hybrid particles; wherein the organic particulate supramolecular monomer may be crosslinked and/or crystallized polymer particles, but the invention is not limited thereto.

In the present invention, the functionality of the supramolecular monomer, i.e. the number of supramolecular groups/units contained per monomer, may be any integer greater than or equal to 1, preferably not less than 2. When all monomers have a functionality of only 1, only dimerization takes place; when all monomers have a functionality of only 2, non-crosslinked supramolecular polymers and/or intramolecular supramolecular rings are produced; when the monomers contain a polyfunctional monomer having a functionality of 3 or more, a non-crosslinked or crosslinked supramolecular polymer can be obtained by controlling the content of the polyfunctional monomer. In the invention, the supramolecular polymer with rich topological structure and various performances can be flexibly designed and prepared by the design and selection of the supramolecular monomer so as to adapt to different requirements and applications.

In the present invention, the dilatant polymer is at least one selected from the group consisting of a dynamic dilatant polymer, a vitreous dilatant polymer, and an entangled dilatant polymer. Wherein the dilatant polymer matrix may be a single component or a multicomponent composition, and the dilatancy may be a single mechanism or a chemically hybrid and/or physically mixed form of multiple mechanisms. In the embodiments of the present invention, the dynamic dilatancy, the vitreous dilatancy, and the entanglement dilatancy are intrinsic characteristics caused by the chemical/supramolecular chemical structure of the polymer, and are referred to as "intrinsic dilatancy" in the present invention, and the polymer having at least one of these dilatancy is an "intrinsic dilatancy polymer", which can be used directly as a polymer matrix to prepare a dilatancy energy-absorbing component without adding, dispersing, or mixing, etc., and which itself has dilatancy, but does not exclude the possibility of being used with dilatancy or non-dilatancy materials of other mechanisms by chemical hybridization and/or physical mixing.

The dilatant energy-absorbing component is constructed by using the intrinsic dilatant polymer as a matrix, so that better creep property, plasticity and shape memory are conveniently obtained, and better tightening, jointing and protection are better performed. Meanwhile, the intrinsic type dilatant polymer has the advantages of being capable of being directly formed, strong in plasticity, good in stability, wide in available range and the like, and can be directly formed into a whole by being used as a protective tool, so that the whole structure of the protective tool is simpler, the structural and functional design is stronger, the energy absorption can be better realized by utilizing the dilatant effect of the intrinsic type dilatant polymer, the intrinsic type dilatant polymer has a wider application range and a wide application prospect, the defects that a bag is required to be used, the leakage is easy to break, the stability is poor, the shaping cannot be realized, the structure of the protective tool is complicated and the like in the prior art are overcome, and the intrinsic type dilatant polymer has remarkable creativity.

According to a preferred embodiment of the invention, the polymer matrix of the dilatant energy-absorbing assembly consists of a dynamic dilatant polymer (composition). The dynamic dilatancy energy-absorbing assembly can obtain dilatancy by using the dynamic dilatancy polymer as a polymer matrix, can obtain sensitive dilatancy, can realize controllable adjustment of the dilatancy energy-absorbing assembly by selecting strong dynamic covalent bonds and strong dynamic supramolecular effects in the polymer, has the characteristics of rich regulation and control means, high dynamic transformation speed, low temperature influence and the like on the dynamic dilatancy caused by the strong dynamic supramolecular effects and/or the dynamic covalent bonds, can widen the rebound temperature range of the dilatancy energy-absorbing assembly, avoids the problems of poor material touch and texture caused by low-temperature hardening and the like, and can regulate and control rebound time.

Wherein said dynamic dilatant polymer (composition) is preferably selected from the group consisting of dynamic dilatant polymers based on boron-containing dynamic covalent bonds, monodentate hydrogen bonding, bidentate hydrogen bonding, monodentate metal-ligand bonding, ionic clustering, ion-dipole bonding, host-guest bonding, lewis acid-base pair bonding, ionic hydrogen bonding.

According to a preferred embodiment of the invention, the polymer matrix of the dilatant energy-absorbing assembly consists of a vitreous dilatant polymer. Utilize glass nature dilatancy polymer itself to make dilatancy energy-absorbing component obtain dilatancy as the polymer base member, can obtain sensitive dilatancy, can realize the controllable regulation to dilatancy energy-absorbing component dilatancy simultaneously through the glass transition temperature of adjustment polymer, simultaneously, the vitrifancy dilatancy has the characteristics that the temperature sensitivity is higher, operating temperature range controllability is strong, be convenient for obtain the subassembly that has best dilatancy in specific operating temperature interval.

According to a preferred embodiment of the invention, the polymer matrix of the dilatant energy absorbing assembly consists of (consists of) an entangled dilatant polymer. The entanglement dilatancy energy-absorbing component can obtain dilatancy by taking the entanglement dilatancy polymer as a polymer matrix, sensitive dilatancy can be obtained, meanwhile, the controllable adjustment of the dilatancy of foam particles can be realized by adjusting the chain length (molecular weight) of the polymer, and meanwhile, the entanglement dilatancy caused by entanglement of polymer molecular chains can enable the dilatancy energy-absorbing component to have higher modulus.

According to a preferred embodiment of the invention, the polymer matrix of the cell walls of the dilatant energy absorbing component is made of (consists of) an intrinsic dilatant polymer. Wherein the polymer matrix in the pore walls of the dilatant energy absorbing component can be a single component or a multi-component composition, and the dilatancy can be a single mechanism or a chemically hybridized and/or physically mixed form of multiple mechanisms; wherein said intrinsic dilatant polymer is preferably selected from the group consisting of dynamic dilatant polymers based on boron-containing dynamic covalent bonds, monodentate hydrogen bonding, bidentate hydrogen bonding, monodentate metal-ligand bonding, ionic clustering, ion-dipole bonding, host-guest bonding, lewis acid-base pairing, ionic hydrogen bonding.

According to a preferred embodiment of the invention, the polymer matrix of the cell walls of the dilatant energy absorbing component is made of an intrinsic dilatant polymer comprising a single component.

According to a preferred embodiment of the invention, the polymer matrix of the cell walls of the dilatant energy absorbing component is made of a multicomponent polymer composition comprising an intrinsically dilatant polymer.

According to a preferred embodiment of the invention, the polymer matrix of the dilatant energy absorbing assembly is made of a single composition/component of a vitreous dilatant polymer. The glass-transition-temperature-adjustable energy-absorbing assembly has the advantages that the glass-transition-temperature-adjustable energy-absorbing assembly has high temperature sensitivity and strong working temperature range adjustability, and is convenient to obtain the dilatability energy-absorbing assembly with a specific working temperature range; and the dilatancy energy-absorbing component with the hollow structure has light weight, good compressibility and good shock absorption and buffering performance.

According to a preferred embodiment of the invention, the polymer matrix of the dilatant energy absorbing assembly is made of a single composition/component of a dynamic dilatant polymer. The dynamic dilatancy polymer is used as a polymer matrix to enable the dilatancy energy-absorbing assembly to obtain dilatancy, sensitive dilatancy can be obtained, meanwhile, the controllable adjustment of the dilatancy energy-absorbing assembly can be realized by selecting strong dynamic covalent bonds and strong dynamic supramolecular effects in the polymer, meanwhile, the dynamic dilatancy caused by the strong dynamic supramolecular effects and/or the dynamic covalent bonds has the characteristics of rich regulation means, high dynamic transformation speed and the like, the rebound temperature range of the dilatancy energy-absorbing assembly can be widened, the problems of poor material touch feeling and poor texture caused by low-temperature hardening are avoided, and the rebound time can be regulated; and the dilatancy energy-absorbing component with the hollow structure has light weight, good compressibility and good shock absorption and buffering performance.

In the present invention, dilatancy, also known as shear thickening, refers to the property of a polymer that, under the action of shear or other mechanical forces, its viscosity and/or strength and/or hardness increases with increasing rate of action of the force.

In the present invention, dilatancy includes, but is not limited to, the following mechanisms, dynamic dilatancy, vitreous dilatancy, entanglement dilatancy, dispersive dilatancy, and aerodynamic dilatancy.

In an embodiment of the invention, the polymer achieves the dilatancy process, called "dynamic dilatancy", by virtue of the supramolecular action of the strong dynamics and/or the strong dynamics of the dynamic covalent bonds, resulting from the introduction of dynamic units of strong dynamics in the structure of the molecule itself.

In the invention, the dynamic dilatancy component may only contain strong dynamic supramolecular action, may only contain strong dynamic covalent bond, or may contain both strong dynamic supramolecular action and strong dynamic covalent bond.

In the embodiment of the present invention, in the dynamic dilatant polymer, the chemical composition of the soft segment and/or the segment between crosslinking points of the polymer is not particularly limited, but depends on the temperature range of the use thereof, and is selected from, but not limited to, polymer segments having a main chain of a carbon chain structure, a carbon hetero chain structure, an elemental organic chain structure, and a carbon hetero element chain structure, and preferably a carbon chain structure, a carbon hetero chain structure, and an elemental organic chain structure, because the raw materials are easily available and the preparation technology is mature. By way of example, the soft segment polymer chain backbone may be a segment based on the following polymers, but the invention is not limited thereto: homopolymers, copolymers, modifications, derivatives and the like of acrylate polymers, saturated olefin polymers, unsaturated olefin polymers, halogen-containing olefin polymers, polyacrylonitrile polymers, polyvinyl alcohol polymers, polyether polymers, polyester polymers, biopolyester polymers, epoxy polymers, polythioether polymers, silicone polymers and the like; preferred are homopolymers, copolymers, modified products, derivatives and the like of unsaturated olefin polymers, polyether polymers, epoxy polymers, polysulfide polymers, polyorganosiloxane polymers and the like. By way of example, the soft segment polymer chain backbone may be a segment based on the following polymers, but the invention is not limited thereto: homopolymers, copolymers, modifications, and derivatives of polyethylene, polyvinyl acetate, polyethylacrylate, polybutylacrylate, polyoctyl acrylate, polyvinylmethylether, polyvinylethylether, ethylene-propylene copolymer, polyisobutylene, polychloroprene, poly cis-1, 4-isoprene, poly trans-1, 4-isoprene, styrene-butadiene copolymer, polynorbornene, polyoxymethylene, polyethylene oxide, polypropylene oxide, polytetrahydrofuran, ethylene oxide-propylene oxide copolymer (such as polyethylene oxide-polypropylene oxide copolymer), polydimethylsiloxane, polydiethylsiloxane, polydiphenylsiloxane, polymethylethylsiloxane, polymethylphenylsiloxane, and hydrogenpolysiloxane. Preferably having a low glass transition temperature, preferably no higher than 25 c, more preferably no higher than 0 c, more preferably no higher than-40 c, more preferably no higher than-100 c, in order to have a wide temperature range for use, i.e. to be able to be used at low temperatures (e.g. north) and high temperatures (e.g. south).

In an embodiment of the present invention, when the group constituting the strong dynamic unit in the dynamic dilatant component is located at the terminal group, pendant group or side chain of the ordinary covalent cross-linked network/weak dynamic supramolecular cross-linked network/weak dynamic hybrid dynamic cross-linked network, or exists in the form of a dispersion in the polymer structure/matrix having a balanced structure, the dynamic polymer has good dynamic/dilatant properties and balanced structure, giving better direct usability.

In one embodiment of the invention, the dynamic dilatancy component is a non-crosslinked structure that rapidly increases in strength above a threshold shear stress, dilatancy being achieved by freezing nearby crosslinked networks. In another embodiment of the invention, the dynamic dilatant component forms a strong dynamic cross-linked structure with a degree of cross-linking above the gel point, which rapidly increases in strength at shear stress rates above the force response rate threshold, which itself forms a cross-linked network of sufficient strength. In another embodiment of the present invention, the dynamic dilatant component is in a weak dynamic cross-linked structure or a common covalent cross-linked structure having a degree of cross-linking above the gel point, and has good resilience due to its stable cross-linked network; it is more preferred because it can provide dilatancy, resilience and shape stability simultaneously.

In embodiments of the invention, dynamic dilatancy due to strongly dynamic supramolecular and/or dynamic covalent bonds may achieve dilatancy over a specific range of force response rates. The dynamic dilatancy force response rate threshold may be any suitable force response rate threshold, without particular limitation. By way of example, the force response rate threshold may be 10^-2s^-1、10^-1s^-1、1s^-1、10s^-1、10²s^-1、10³s^-1、10⁴s^-1、10⁵s^-1Or any range having any of these values as endpoints, although the invention is not limited thereto.

In the embodiment of the present invention, the dynamic dilatancy is preferably applied to dilatant energy-absorbing components composed of (participating in) materials based on polymer gels, sol/solution/fluids, pastes, elastomers, fibers, fabrics, foams, and the like, and combinations thereof, especially elastomers, foamed elastomers, elastic fabrics/components, which have the characteristics of rich regulation means, fast dynamic transformation speed, and the like.

In the embodiments of the present invention, this is achieved by the glass transition and the nature of the segments in the structure of the polymer itself, which is called "vitreous dilatancy".

In the present invention, the glassy dilatant polymer has at least one or more glass transition. In the present invention, having the glass transition described is one of the requirements for achieving room temperature dilatancy of the polymer described in the present invention, i.e. the dilatancy utilizes at least the glass transition of the polymer, in particular the glass transition of its soft segment structure. The glass transition temperature refers to a transition temperature at which a polymer is transformed from a brittle glass state to an elastic rubbery state, that is, a temperature at which a glass transition occurs, and may be a temperature point or a temperature range (also referred to as a glass transition region). When the temperature of the polymer is reduced to be lower than Tg, the molecular chain and chain segment movement of the polymer are frozen and are shown as brittleness; as the temperature of the polymer rises and exceeds the Tg of the polymer, both the molecular chain and the chain segment of the polymer can move, and the polymer shows viscofluidity or rubber-state elasticity; in the vicinity of Tg, the polymer moves through polymer segments therein, the molecular chains are not restricted in movement, good viscoelasticity is exhibited, and therefore dilatancy is obtained. When the Tg of the polymer is near room temperature, the polymer can show room temperature dilatancy, namely, the dilatancy of the polymer can be maximized by regulating the glass transition temperature of the polymer to be near room temperature, namely, the vitrifiability of the polymer can be realized; and when the Tg is around other temperatures, the vitrification dilatancy can be achieved in other temperature ranges.

In the present invention, the glass transition temperature (Tg) of the polymer can be measured by a known test method by those skilled in the art. At least the glass transition temperature can be measured by a method commonly used in the art, such as Differential Scanning Calorimetry (DSC), dynamic mechanical analysis/Dynamic Mechanical Analysis (DMA), and dynamic mechanical thermal analysis/Dynamic Mechanical Thermal Analysis (DMTA), for example.

In the present invention, the glass-transition dilatant polymer may have only one glass transition temperature, or may have a plurality of glass transition temperatures, and preferably the glass transition temperature range thereof includes at least 10 ℃ to 45 ℃, i.e. at least the temperature range including the body surface temperature of the human body, more preferably the glass transition temperature range thereof includes at least-40 ℃ to 45 ℃, i.e. the temperature range of the environment satisfying most of the human activities. In the invention, the glass transition temperature of the polymer can be regulated and controlled by regulating the chemical composition and the topological structure of the soft segment of the polymer to be close to the use temperature of the dilatant material, so as to obtain the maximized dilatant/viscoelasticity.

In the embodiment of the present invention, the chemical composition of the soft segment of the polymer in the vitrification dilatancy is not particularly limited, and is selected from, but not limited to, polymer segments whose main chain is a carbon chain structure, a carbon hetero chain structure, a carbon element chain structure, an element hetero chain structure, and a carbon hetero element chain structure, and preferably a carbon chain structure, a carbon hetero chain structure, an element hetero chain structure, and a carbon hetero element chain structure, because of their abundant structure, excellent performance, readily available raw materials, and mature preparation technology. By way of example, the soft segment polymer chain backbone may be a segment based on the following polymers, but the invention is not limited thereto: homopolymers, copolymers, modifications, derivatives and the like of acrylate polymers, saturated olefin polymers, unsaturated olefin polymers, halogen-containing olefin polymers, polyacrylonitrile polymers, polyvinyl alcohol polymers, polyether polymers, polyester polymers, biopolyester polymers, epoxy polymers, polythioether polymers, silicone polymers and the like; preferred are homopolymers, copolymers, modified products, derivatives and the like of unsaturated olefin polymers, polyether polymers, epoxy polymers, polysulfide polymers, polyorganosiloxane polymers and the like. By way of example, the soft segment polymer chain backbone may be a segment based on the following polymers, but the invention is not limited thereto: homopolymers of polyethylene, polyvinyl acetate, polyethylacrylate, polybutyl acrylate, polyoctyl acrylate, polyvinylmethylether, polyvinylethylether, ethylene-propylene copolymer, polyisobutylene, polychloroprene, poly cis-1, 4-isoprene, poly trans-1, 4-isoprene, styrene-butadiene copolymer, styrene-isoprene copolymer, styrene-isobutylene copolymer, polynorbornene, polyoxymethylene, polyethylene oxide, polypropylene oxide, polytetrahydrofuran, ethylene oxide-propylene oxide copolymer (e.g., polyoxyethylene-polyoxypropylene copolymer), polydimethylsiloxane, polydiethylsiloxane, polydiphenylsiloxane, polymethylphenylsiloxane, hydrogenpolysiloxane, and the like, Copolymers, modifications, derivatives, and the like.

In the present invention, the vitrifiable dilatancy temperature dependence caused by polymer vitrification is high, but by controlling the polymer structure to have a highly adjustable working temperature range, it is convenient to obtain a material having dilatancy with the best effect around human body temperature, which is preferably applied to polymer-based elastomers, fabrics, foams and the like and materials and energy absorbing components in the form of combinations thereof.

In an embodiment of the invention, this is achieved by entanglement of the polymer molecular chains, referred to as "entanglement dilatancy". When the entanglement dilatant polymer is in an entangled state and the shear stress is higher than a threshold value, the disentanglement speed of entanglement points is insufficient, the movement is limited, the entanglement points play a role of crosslinking points, and good rigidity is embodied; when the shear stress rate of the entanglement dilatant polymer is lower than a threshold value, the polymer chains can be gradually and slowly disentangled, and good flexibility is shown.

In the present invention, the linear segment of the entanglements dilatant polymer has a molecular weight greater than the entanglement molecular weight of the matrix polymer, preferably greater than three times the entanglement molecular weight of the matrix polymer, and more preferably greater than five times the entanglement molecular weight of the polymer, to achieve effective entanglement. The topology of the entanglement dilatant polymer is not particularly limited and is preferably a crosslinked network structure having side chains. Wherein, when the topological structure of the entanglement dilatant polymer is a branched structure, the molecular weight of the side chain is preferably higher than the entanglement molecular weight of the matrix polymer, and more preferably the molecular weight of the side chain is three times higher than the entanglement molecular weight of the matrix polymer, so as to achieve effective entanglement.

In the embodiment of the present invention, the chemical composition of the segment of the entanglement dilatant polymer is not particularly limited, but is preferably, but not limited to, a polymer segment whose main chain is a carbon chain structure, a carbon hetero chain structure, a carbon element chain structure, an element hetero chain structure, or a carbon hetero element chain structure, and is preferably a carbon chain structure, a carbon hetero chain structure, an element hetero chain structure, or a carbon hetero element chain structure, because the raw materials are easily available and the preparation technology is mature; preferably, the Tg of the polymer segment is not higher than-20 deg.C, more preferably not higher than-40 deg.C, more preferably not higher than-60 deg.C, more preferably not higher than-100 deg.C. The molecular weight thereof needs to be high enough to obtain entanglement under shear, and is preferably not less than 100kDa, more preferably not less than 1000 kDa.

In the present invention, the entanglement dilatancy caused by the molecular weight entanglement of the polymer has the characteristic of low sensitivity to external stimuli such as light, heat, acid and base, and is preferably applied to materials and corresponding parts thereof in the form of polymer-based gels, sols/solutions/fluids, pastes, elastomers, foams, and the like, and combinations thereof, particularly gels, sols/solutions/fluids, pastes, foams.

In the embodiment of the present invention, the mechanism of achieving the thickening effect by the clustering effect/order-disorder transition or the like of the dispersed particles in the dispersion liquid with an increase in the shear rate of the dispersion liquid is referred to as "dispersibility dilatancy". Wherein the dispersion liquid with dispersivity dilatancy at least comprises solid microparticles and a dispersion medium, wherein the volume fraction of the solid microparticles can be different according to the shape, aggregation state, surface properties of the particles, and the molecular weight, chemical and physical properties and the like of the dispersion liquid, and is preferably not less than 5 vol%. Wherein, the solid microparticles comprise two types of nanoparticles and microparticles; by way of example, the former include, but are not limited to, nano-silica (fumed silica), nano-alumina, nano-montmorillonite, nano-calcium carbonate, graphene, cellulose crystallites, nano-polymethylmethacrylate particles, nano-polystyrene particles, nano-iron oxide particles, nano-mica, nano-silicon nitride, and the like; the latter include, but are not limited to, submicron or micron sized silica particles, alumina particles, polymethylmethacrylate particles, polystyrene particles, starch particles, mica, silicon nitride, and the like. The shape of the solid microparticles can be spheres, ellipsoids, discs, other regular and irregular polyhedrons and the like, the surface of the solid microparticles can be smooth or rough, and spheres and ellipsoids are preferred; the surface of which is optionally also modified organically and/or inorganically. Wherein, the dispersion medium is nontoxic, stable in chemical property, not easy to volatilize, and good in fluidity, and the polar solution includes but is not limited to organic matter, mineral oil, polymer matrix, and the like, and can be selected from but is not limited to Newtonian fluid, non-Newtonian fluid, and a mixture thereof; specifically, by way of example, the dispersion medium includes, but is not limited to, water, polyethylene glycol, polypropylene glycol, liquid paraffin, vegetable oil, mineral oil, silicone oil, ionic liquid, plasticizer, liquid metal, dilatant polymer fluid (e.g., boron-containing dynamic polymer), mixtures thereof, and the like. When the dispersion liquid contains inorganic fine particles and organic dispersion medium, the dispersion liquid may optionally contain a coupling agent and/or a surfactant, so that the fine solid particles can be dispersed more uniformly in the dispersion medium, for example, silane coupling agents such as KH550, KH560 and a1120, and coupling agents such as titanates, aluminates, organochromium complexes, phosphates, zirconates and stannates.

In the present invention, the dispersible dilatant component, because it is a liquid/fluid/sol, typically needs to be used by impregnation into a fiber, fabric, open-cell foam or other three-dimensional structure, or into a bag/pouch/tube, or blended into a polymer matrix (including but not limited to foam, elastomer, gel). Preferably, they are used in bags/pouches/tubes, or blended into a polymer matrix (including but not limited to foams, elastomers, gels) because they are not prone to leakage. Wherein the fibers, fabric, foam, bag/pouch/tube, polymer matrix, etc. may themselves have dilatancy of other mechanisms.

In an embodiment of the present invention, the aerodynamic dilatancy is achieved by controlling the cell structure of the foam. The cell structure of the foam with aerodynamic dilatancy is mainly closed cell structure, but the cell structure also contains small-sized open cells, so that when the foam is compressed or recoiled, gas is slowly discharged or entered, and thus the dilatancy characteristic is shown, and the process is called as "aerodynamic dilatancy". The pneumatic dilatancy has the characteristics of stable chemical property and low temperature sensitivity, and can provide supplementary dilatancy.

In embodiments of the present invention, the method of achieving dilatancy may be a combination of two or more different methods/mechanisms, including but not limited to physical mixed forms, chemical hybrid forms, the coexistence of both physical mixed forms and chemical hybrid forms.

In the invention, the physical mixing mode refers to that the components/compositions/structures of different dilatancy mechanisms are combined together in a physical mixing mode to realize the dilatancy of the energy absorbing component, and the components in the system are independent from each other and have no chemical relation. In the invention, the chemical hybrid form refers to that different dilatancy components/compositions/structures exist simultaneously in the same polymer chain or in the same polymer network, and are connected with each other in a chemical manner (including covalent bonds, ionic bonds, metallic bonds, supramolecular action and the like) to jointly realize the dilatancy of the energy-absorbing component. In the invention, the physical mixing form and the chemical hybridization form exist at the same time, which means that the dilatancy is realized in the form of physical mixing and chemical connection in the dilatancy energy-absorbing component. The dilatancy achieved is generally a multiple dilatancy, with both orthogonal and synergistic properties, with broader applicability.

In an embodiment of the present invention, the combination of two or more different modes of dilatancy may be selected from the forms including, but not limited to: mixing of vitrification dilatancy and dynamic dilatancy, mixing of vitrification dilatancy and entanglement dilatancy, mixing of dynamic dilatancy and entanglement dilatancy, chemical hybridization form with both vitrification dilatancy and dynamic dilatancy on a polymer chain, and mixing/combination of chemical hybridization form with both vitrification dilatancy and dynamic dilatancy on a polymer chain and other forms.

In one embodiment of the present invention, it is preferred to use the functional units/polymer segments/polymer materials or their precursors with dynamic dilatancy, vitrifying dilatancy, entanglement dilatancy as synthetic raw materials or components to make materials in the form of adaptive dilatant gels, sols/solutions/fluids, pastes, elastomers, fibers, fabrics, foams, etc. and combinations thereof, the resulting dilatant materials being used directly as energy absorbing components or further processed into dilatant energy absorbing components, and finally (typically combined) to obtain the flexible adaptive brace of the present invention.

In another embodiment of the present invention, the intrinsically dilatant polymer or intrinsically dilatant polymer composition material, preferably in the form of dynamic dilatant, vitreous dilatant, entanglement dilatant adaptive dilatant gels, sols/solutions/fluids, pastes, elastomers, fibers, fabrics, foams and the like and combinations thereof, is either directly as an energy absorbing component or further processed into a dilatant energy absorbing component and finally (typically after combination) the flexible adaptive brace of the present invention is obtained.

In another embodiment of the invention, it is preferred that the material in the form of dynamic dilatancy, vitreous dilatancy, entanglement dilatancy adaptive dilatancy gels, sols/solutions/fluids, pastes, elastomers, fibers, fabrics, foams, and the like, and combinations thereof, be processed directly as an energy absorbing component or further into a dilatant energy absorbing component, and finally (typically combined) to obtain the flexible adaptive brace of the invention.

In another embodiment of the present invention, the dilatant energy absorbing assembly is preferably formed by filling a dilatant and/or non-dilatant elastomer, foam, gel, sol/solution/fluid, paste, with a dynamic dilatant, entanglement dilatant function. When filled in the foam, it may be filled in the cell walls and/or cells of the foam. The filling in the bubble wall is beneficial to reducing the weight. More preferably, the elastomer, foam, used for filling, is itself dilatant, preferably dynamic dilatant and/or vitreous dilatant, more preferably dynamic dilatant.

In embodiments of the invention, the elastomer, foam, used to be filled may be crosslinked or non-crosslinked. A cross-linked matrix that can be a common covalent cross-link, a dynamic covalent cross-link, a non-covalent cross-link, and combinations thereof; the common covalent crosslinking has the price advantage, and the dynamic covalent crosslinking and the non-covalent crosslinking are convenient to recover and have the characteristics of self-repairing and the like; non-crosslinked is the lowest cost, easy to recycle, but easily permanent deformation. Common covalent crosslinking, dynamic covalent crosslinking, and non-covalent crosslinking, and combinations thereof, are preferred, wherein common covalently crosslinked elastomers/foams include, but are not limited to, ethylene propylene rubber, nitrile butadiene rubber, butyl rubber, natural rubber, neoprene rubber, crosslinked butadiene, silicone rubber; dynamically covalently cross-linked elastomers/foams include, but are not limited to, any one or more suitable systems for dynamic covalent bond cross-linking, preferably based on dynamic sulfur linkages, dynamic selenium sulfur linkages, dynamic selenium nitrogen linkages, acetal dynamic covalent linkages, dynamic covalent bonds based on carbon-nitrogen double bonds, dynamic covalent bonds based on reversible free radicals, associative exchangeable acyl linkages, dynamic covalent bonds induced based on steric hindrance, reversible addition fragmentation chain transfer dynamic covalent bonds, dynamic siloxane linkages, dynamic silicon ether linkages, exchangeable dynamic covalent bonds based on alkylazacyclines, unsaturated carbon-carbon double bonds capable of olefin cross-metathesis, unsaturated carbon-carbon triple bonds capable of alkyne cross-metathesis, dynamic covalent bonds of [2+2], dynamic covalent bonds of [4+4], cycloaddition, dynamic covalent bonds of [ 4], [ 2], [ cyclic addition, etc. ], and, A system of mercapto-michael addition dynamic covalent bond, amine alkene-michael addition dynamic covalent bond, triazolinedione-indole based dynamic covalent bond, diazacarbene based dynamic covalent bond, benzoyl based dynamic covalent bond, hexahydrotriazine based dynamic covalent bond, dynamically exchangeable trialkyl sulfonium bond, dynamic acid ester bond, diketone enamine dynamic covalent bond crosslinking; non-covalently crosslinked thermoplastic elastomers/foams include, but are not limited to, any one or more suitable non-covalently crosslinked systems, preferably systems based on metal-ligand interactions, hydrogen bonding, halogen bonding, cation-pi interactions, anion-pi interactions, benzene-fluorobenzene interactions, pi-pi stacking interactions, ionic interactions (positive and negative ion pair interactions), ion clustering interactions, ion-dipole interactions, dipole-dipole interactions, metallophilic interactions, ionic hydrogen bonding interactions, free radical cation dimerization, Lewis acid-base pair interactions, host-guest interactions, phase separation, crystallization crosslinking, more preferably systems based on hydrogen bonding, metal-ligand, ion-dipole interactions, ionic interactions, phase separation, crystallization crosslinking, more preferably thermoplastic polyurethanes (including polyureas), Thermoplastic polyamides, thermoplastic polyolefins, thermoplastic polyesters, and blends and modifications thereof. The various supramolecular, dynamic covalent, hybrid cross-linked and other polymers which are applied by the applicant in the past are also the preferred scheme of the invention.

In the invention, the combination of dilatancy and elasticity can improve the elastic modulus of the adaptive energy absorption component, especially the elastic modulus during rapid deformation. In the embodiment of the invention, when the self-adaptive energy absorption component is deformed at a slow speed, the elastic modulus of the self-adaptive energy absorption component with the dilatancy property is 100-150% of that of a product with similar crosslinking density of a similar matrix; preferably, when the self-adaptive energy absorption component is deformed at a slow speed, the elastic modulus of the self-adaptive energy absorption component with the dilatancy is 100-120% of that of a product with a similar matrix and similar crosslinking density; more preferably, the elastic modulus of the dilatant adaptive energy absorbing component is 100-110% of the elastic modulus of the dilatant energy absorbing component with similar crosslink density to the matrix under slow deformation. In an embodiment of the invention, the elastic modulus of the adaptive energy absorbing component with dilatancy is 1.5 times greater than the elastic modulus of a product with similar matrix cross-link density when rapidly deformed; preferably, the elastic modulus of the adaptive energy absorbing assembly with dilatancy is 2 times greater than that of a product with similar matrix cross-link density when rapidly deformed; more preferably, the modulus of elasticity of the adaptive energy absorbing assembly having dilatancy is greater than 3 times the modulus of elasticity of a product having a similar matrix cross-link density when rapidly deformed. Wherein the low speed-rapid deformation cut-off point may be a different value depending on the case, and the cut-off point is preferably between 0.1mm/s and 10m/s, and more preferably 0.1mm/s, 0.2mm/s, 0.3mm/s, 0.4mm/s, 0.5mm/s, 0.6mm/s, 0.7mm/s, 0.8mm/s, 0.9mm/s, 1mm/s, 2mm/s, 3mm/s, 4mm/s, 5mm/s, 6mm/s, 7mm/s, 8mm/s, 9mm/s, 10mm/s, or any range of any of these values as endpoints.

In the invention, the dilatant energy-absorbing component with dilatancy can show creep or slow rebound characteristics under specific conditions, namely, when the polymer is acted by external force, the polymer can deform; after the external force is removed, the material can not rebound or can not immediately rebound/recover deformation but slowly rebound/recover deformation; when the device is in close contact with the protected part of the human body, the shape of the protected part can be memorized. In the present invention, the adaptivity of the combination of dilatancy and elasticity allows for control of the rebound time of the elastic energy absorbing assembly. In an embodiment of the invention, the adaptive energy absorbing assembly with dilatancy has a rebound time greater than 1 time the rebound time of a product with a similar matrix cross-link density; preferably, the rebound time of the adaptive energy absorbing assembly with dilatancy is more than 2 times greater than that of a product with similar matrix and similar crosslink density; more preferably, the adaptive energy absorbing assembly having dilatancy properties has a rebound time greater than 3 times the rebound time of a product having a similar matrix cross-link density; most preferably, the adaptive energy absorbing assembly having dilatancy has a rebound time 3-10 times greater than that of a product having a similar crosslink density of the matrix. In the present invention, the rebound time of the adaptive energy absorbing assembly having dilatancy characteristics at normal temperature and pressure is not particularly limited, and is preferably 0.1 to 120 seconds, more preferably 0.4 to 60 seconds, and further preferably 1 to 30 seconds. Wherein, the rebound time refers to the time required for basically restoring the test sample after applying pressure to the sample to cause the sample to generate specified deformation and keeping the specified time.

In the present invention, by compounding with non-dilatant polymers and/or fillers and the like, such as blending and/or network interpenetration, the compound containing a dilatant polymer may still have dilatant properties, but may not exhibit creep or slow rebound characteristics, or have lower creep or slow rebound characteristics, or have only high resilience; preferably still having creep or slow rebound characteristics, facilitating shape memory to the protected site.

In the present invention, the dilatant energy absorbing component, when in the elastomeric or gel state, preferably has a ball Rebound of less than 80%, more preferably a Rebound of less than 50%, even more preferably less than 25%, even more preferably less than 10%, wherein the test method is ASTM D-2632 "Rubber Property-Resilience by Vertical Rebound" (ASTM D-2632 "Rubber Property-Vertical Rebound"); when the foam is in its state, it preferably has a ball rebound of less than 50%, more preferably less than 25%, more preferably less than 10%, still more preferably less than 5%, wherein the Test method is ASTM D-3574H "Flexible Cellular Materials Slab, bound and Molded Urethane Foams, Test H, Resilience (ball rebound) Test" (ASTM D-3574H, "Flexible Cellular Material-Panel, Bonded and Molded polyurethane foam, Test H, rebound (ball rebound) Test").

In the present invention, the ball rebound resilience is a ratio of a rebound height to a drop height at which a steel ball of a predetermined mass and shape is dropped on a sample surface. That is, a steel ball with a specified mass and shape is dropped onto the surface of a sample from a fixed height, the rebound height of the steel ball is measured, and the percentage of the ratio of the rebound height (denoted as H) to the drop height (denoted as H) is calculated as the rebound ratio (denoted as R) of the sample, which can be calculated by the following formula:

the rebound resilience R is H/H100 percent;

wherein h is the rebound height in millimeters (mm);

where H is the drop height in millimeters (mm).

In the invention, the pure solid structure refers to a structure without a hole structure or a phase separation structure inside the component; even if only one (polymeric) material is contained therein, there is no phase separation; when different materials are contained, phase separation does not exist between the different materials. The simple solid structure is beneficial to prompting the anti-impact protection performance and improving the mechanical property and the durability.

In the invention, the simple hollow structure refers to a structure containing holes in the component, the holes include but are not limited to a closed hole structure, a partially closed hole structure and an open hole structure, and the shapes include but are not limited to a sphere, an ellipsoid, a cube, a cuboid, a polyhedron, a column, a cone and an inward concave angle, preferably the sphere, the ellipsoid, the cube, the column and the inward concave angle, and more preferably the sphere, the ellipsoid and the inward concave angle; the hole wall is of a pure solid structure, and other substances except gas are not contained in the hole. May include an outline/three-dimensional geometric upper cutout. The simple hollow structure is beneficial to buffering through the deformation of the hollow structure, and the light and convenient characteristic is also realized.

In the present invention, the cell structure refers to a structure containing a pore structure and/or a phase separation structure (including an island-in-sea structure, a layered structure, a bicontinuous structure, a dispersed column structure, a woven structure, a combination structure thereof, and the like (including a structure in which fillers are incompatible with a matrix, a structure in which an interface layer or an interface layer exists between a filler and a matrix, and a structure in which a filler is different from a matrix) inside a module, and containing a filler material and/or containing a phase separation polymer segment/phase at a phase separation phase, and optionally containing a hollow structure which contains no other filler except a filler gas, wherein the pore wall and/or the phase separation layer wall of the cell structure is referred to as a cell wall, and the cell wall may have any suitable structure such as a multilayer structure, and the pore inner structure and/or the phase separation dispersed phase structure of the cell structure is referred to as a cell capsule, the filling material and/or polymer chain segment/phase in the cell structure is called cell core; when the filling material and/or the polymer segments/phases in the vesicles are in a filled state, the resulting cell structure is a solid cell structure; when the filler material and/or the polymer segment/phase in the cyst is in an unfilled state, the resulting cell structure is a hollow cell structure; the resulting cell structure is an empty-hybrid cell structure when at least two of the filler material and/or polymer segments/phases in a portion of the cells are in a filled state, a portion of the cells are in an unfilled state, and a portion of the cells are in a state free of other filler material other than air. The shape of the cyst in the present invention includes, but is not limited to, spherical, ellipsoidal, cubic, cuboid, polyhedral, columnar, pyramidal, reentrant angular, lamellar, preferably selected from spherical, ellipsoidal, cubic, columnar, reentrant angular, and also includes bicontinuous phase structure, more preferably spherical, ellipsoidal, and reentrant angular. When bicontinuous phases or similar structures are present, the cell walls and cysts may be described instead of each other. The solid cell structure has good mechanical property and high impact resistance and protection performance; the hollow cell and hollow hybrid cell structures are advantageously cushioned by deformation of the hollow structure and are more lightweight.

In one embodiment of the present invention, the cyst of the cellular structure preferably has an indent-corner type structure similar to an octopus sucking disc (as shown in fig. 1 to 3, fig. 1 is a schematic illustration of an indent-corner type structure, fig. 2 is a schematic illustration of an open-pore indent-corner type structure, and fig. 3 is a schematic illustration of a curved-edge indent-corner type structure.

In the invention, the shape/three-dimensional geometrical configuration of the dilatant energy-absorbing component can have any suitable structure according to the protected part and the pursuit of different performances. In the present invention, any configuration/three-dimensional geometry is not only for the purpose of organoleptic properties in appearance, but is primarily intended to achieve certain properties. No matter where the inflatable energy-absorbing component is used, the inflatable energy-absorbing component is preferably favorable for impact resistance in appearance/three-dimensional geometric configuration, can be bent, twisted and the like, is high in preferred comfort level, can meet the requirements for impact resistance, comfort, light weight, thinness and tightness, and is convenient for human body movement.

In the present invention, the dilatant energy absorbing assembly, its profile/three-dimensional geometry, can be described in terms of a combination of a full profile and a fine outer three-dimensional geometry. The overall appearance refers to the overall appearance in the invention, mainly for the purpose of beauty and adaptation to different position requirements; the fine external three-dimensional geometrical configuration refers to a fine structure and is mainly considered for the functions of impact resistance, light weight, thinness, convenience in compact attachment and the like. The overall shape generally has a circular ring shape, a quasi-circular ring shape, an elliptical ring shape, a quasi-elliptical ring shape, a plate shape, a strip shape, a block shape, a sheet shape, a cover shape, a tile shape, a petal shape, a combination form thereof and the like (as shown in figure 4). The fine three-dimensional geometric configuration may include, but is not limited to, a three-dimensional through type (including hollow, facilitating bending, ventilation, weight reduction, etc.), an inward recessed angle type (facilitating bending, enhancing impact performance, etc.), a convex point type (massaging function, weight reduction, etc.), a wave type (facilitating bending, reducing weight, etc.), a groove type, a fish scale type, a hexagonal type, a triangular type, a diamond type, a disc type, and a combination thereof (as shown in fig. 5). Preferably, the design of grooves, wave shapes, concave angle shapes, three-dimensional penetrating fish scale shapes, hexagonal plate shapes, triangular plate shapes, rhombic plate shapes, combination forms thereof and the like which have low influence on the fitting degree after convenient ventilation, bending, weight reduction, bending or twisting exists.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component may be selected from the group consisting of a ring-like, quasi-ring-like, elliptical-ring-like, and quasi-elliptical-ring-like structure. Because the shape of the parts of a human body, particularly various joints and the like, is irregular, even if the dilatant energy-absorbing assembly has the self-adaptability and the shape memory capability, if the irregular degree of the shape of the protected parts is high and the change of the motion process is large, the conditions of insufficient tightness of the joint and unsatisfactory protection performance are easy to occur. The defects can be solved to the maximum extent by using the dilatant energy-absorbing component with a ring-shaped or ring-like structure; the elastic body with the annular or ring-like structure can improve the shock resistance and the protection performance through deformation such as torsion, bending and the like. More preferably, the hollow structure is a ring-shaped or ring-like hollow structure (as shown in figure 4), so that the hollow structure is lighter and more conformable. The energy absorbing component with the ring-shaped or ring-like structure is particularly suitable for the protectors such as knee pads, elbow pads, helmets, shoulder pads, gloves and the like.

According to a preferred embodiment of the present invention, the dilatant energy absorbing component may be selected from the group consisting of a plate, a strip, a block, a sheet and combinations thereof. The plate-shaped structure is suitable for protecting the regular parts of the structure and is suitable for large-area protection, such as back, chest and abdomen; the strip-shaped energy absorption component is suitable for flat parts in a small range, and can be wound to protect various joint parts because the dilatancy energy absorption component has good flexibility and is convenient to bend; the block shapes can be combined according to the thickness and the size, and are suitable for protecting various suitable parts, such as elbows, knees, shoulders, heads and the like; the large block combination is suitable for the head, hip and the like; the sheet form is generally thin but may be adapted for various suitable locations. Through the combination form, make things convenient for more requirements of the protective equipment that shocks resistance.

According to a preferred embodiment of the present invention, the dilatant energy absorbing component may be selected from the group consisting of cups, tiles, lobes and combinations thereof. For the parts with more complex structures, such as knees, elbows, heads, ankles and the like, the energy absorption assembly is directly prepared into a cover shape, a bent tile shape, a petal shape with or without radian and the like, and the energy absorption assembly has a primary fitting shape or a shape convenient to fit, and can be beneficial to fitting and improving the protection effect.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component may be selected from the group consisting of circular rings, quasi-circular rings, elliptical rings, quasi-elliptical rings, plates, strips, blocks, sheets, caps, tiles, petals and combinations thereof, and combinations thereof with three-dimensional through-type, inside concave angle type, convex point type, wave type, groove type, fish scale type, hexagonal sheet type, triangular sheet type, diamond sheet type, disc type and combinations thereof; more preferably, the combination of the plate shape, the strip shape, the block shape, the sheet shape, the cover shape, the tile shape, the petal shape and the combination form thereof and the three-dimensional penetration type, the concave angle type, the convex point type, the wave shape, the groove shape, the fish scale shape, the hexagonal shape, the triangular shape, the diamond shape, the circular shape and the combination form thereof; further preferably, the combination of the plate shape, the sheet shape, the cover shape, the tile shape, the petal shape and the combination form thereof and the three-dimensional penetration type, the concave angle type, the wave shape, the groove shape, the fish scale type, the hexagonal sheet type, the triangular sheet type, the diamond sheet type and the combination form thereof; still further preferred are combinations of plates, sheets, cups, tiles, petals and combinations thereof with cove-angle, wave, channel, flake and combinations thereof.

Through the combination of the shape and the fine three-dimensional geometric configuration, particularly the combination of an inward concave angle type, a wave type, a groove, a fish scale type and the like, the dilatancy energy-absorbing assembly with good fitting property and excellent protective property can be conveniently obtained. The flexible self-adaptive impact-resistant energy-absorbing protective clothing can be further combined with a fastening piece of the protective clothing, so that the flexible self-adaptive impact-resistant energy-absorbing protective clothing with good fitting performance and excellent protective performance can be conveniently obtained.

In the invention, the concave angle type structure in an internal or three-dimensional geometric configuration is beneficial to obtaining a negative Poisson ratio structure, particularly the concave angle type structure of an octopus-like sucker structure, and the shock resistance can be greatly improved. In the invention, other negative Poisson ratio structures can be provided, or a negative Poisson ratio material can be adopted, so that the impact resistance is improved.

In the present invention, the dilatant energy absorber component may be prepared by any suitable method, depending on the particular internal structure and shape/three-dimensional geometry, material, function, and use. For the elastomer, methods such as injection molding, compression molding, 3D printing, carving and the like can be adopted; for foam or other hollow or cellular structures, methods of foaming, 3D printing, three-dimensional weaving, welding, bonding, dipping, and the like may be employed, wherein foaming may include chemical foaming and physical foaming, and physical foaming may include supercritical foaming. 3D printing has incomparable advantages for the preparation of specific shapes, such as an internal reentrant corner.

In the present invention, the thickness of the dilatant energy absorbing member is not particularly limited, but is preferably not more than 20mm, more preferably not more than 10mm, for the sake of flexibility, convenience and comfort.

In the present invention, the dilatant energy absorbing assembly, the density of which is not particularly limited, is preferably not more than 1000g/L, more preferably not more than 500g/L, still more preferably not more than 300g/L for the sake of flexibility, convenience and comfort.

In the present invention, the color of the dilatant energy absorbing member is not particularly limited. Non-toxic and harmless pigments and dyes are preferably used.

In the present invention, the dilatant energy absorbing member itself (having fastening ability) directly serves as the protector; or by means of attaching, sewing, bonding, embedding, stapling, welding, etc., with other components, such as cloth, elastic band, elastic fabric, buckle, band, thread, sleeve, velcro, zipper, nail, button, bag, etc., as the protector; or further combining with other materials/components such as cloth, elastic band, buckle, lock catch, eye-splice, band, thread, sleeve, magic tape, zipper, nail, button, etc. by means of attaching, sewing, bonding, embedding, stapling, welding, etc. to make the protective clothing; or further combined with more other components such as sleeves, skins, cartridges, bags, straps, supports, cleats, etc. into a brace product. Other parts such as logo parts, decoration parts, reflective parts, wear-resisting parts, massage parts and the like can be punched, embedded, bonded and hung at proper positions.

In the embodiment of the present invention, the elastic band is not particularly limited, and may be a commercially available elastic band or a band-shaped material having a similar or equivalent function; the elastic fabric is also not limited and may be an elastic fabric or a blend of elastic and non-elastic fibers or materials having similar or equivalent functions.

In the present invention, the flexible adaptive brace employs fasteners and/or shaping members, including but not limited to elastic bands, elastic fabrics, for securing/wearing the energy absorber assembly and/or securing/wearing the brace to the protected area in order to achieve a tight fit. Even if an inelastic locking catch member is used, it is preferable to use a member having elasticity in combination with the locking catch member at the same time in order to obtain a fastener (combination) having elasticity and facilitate movement/activity.

In the present invention, the supporting member as the other accessory includes, but is not limited to, a metal material, a polymer material, and an inorganic non-metal material, and specific examples of the supporting member include, but are not limited to, a metal spring bar, a metal elastic bar, a metal-polymer spring bar, a metal-polymer elastic bar, a glass fiber spring bar, a carbon fiber spring bar, a polymer elastic bar, a composite spring bar, and a composite elastic bar. Among them, the polymer spring strip, the polymer elastic strip, the composite material spring strip and the composite material elastic strip with dilatancy are preferred, and the polymer spring strip, the polymer elastic strip, the composite material spring strip and the composite material elastic strip with dilatancy and density of 0.5g/mL-1.5g/mL are more preferred; the density can be reduced by foaming, filling foaming filler, 3D printing, punching and other methods; the dilatancy preferably has a dilatancy selected from the group consisting of dynamic dilatancy, vitreous dilatancy, entanglement dilatancy, combinations thereof and combinations with other dilatancy; more preferably dynamic dilatancy, in order to have a lower temperature sensitivity. The dilatancy support piece can provide a self-adaptive support effect, and can generate self-adaptive dilatancy change aiming at the deformation rate of the support piece in the movement process, namely the hardness, modulus, elasticity, rebound rate and the like are adjusted according to the change rate of a human body (particularly joints); when the human body moves at a low speed, the support hardness and the modulus are lower, and the human body is relatively flexible, so that the human body can be conveniently bent and the like; when high-speed motion, the bigger bloated flow nature of rate of change is more obvious, and the supporting role is better, can play the guard action more, to the function of protective equipment provides multiplication.

In the present invention, the flexible adaptive brace is described wherein the dilatant energy absorbing element is permanently fixed (non-removable) in the brace when used in combination with other elements; or the energy absorbing assembly or combination thereof can be freely removed for cleaning, servicing, or replacing accessories for the brace. Can dismantle preferred through magic subsides, zip fastener, slot, slash pocket/pocket, buckle, button, knot realize, more preferred magic subsides and slash pocket/pocket.

In the present invention, the appearance of the flexible adaptive brace is not particularly limited, but for flexibility and comfort, a compact structure is preferred, i.e., as few unnecessary fittings as possible.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace comprising an elastic band as a fastener, a plain cloth as a shaping member, and a dilatant energy absorbing member of purely solid construction.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace comprising an elastic band as a fastener, an elastic fabric as a shaping member, and a dilatant energy absorber element of simple hollow construction.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace comprising an elastic band as a fastener, a three-dimensional woven material as a shaping member, and a dilatant energy-absorbing element of a hollow structure.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises a stretch band as a fastener, a 3D printed material as a shaping element, and a dilatant energy absorbing assembly having a hollow structure and a reentrant angular three-dimensional geometry.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace comprising a stretch band as a fastener, an open or semi-open cell foam as a shaping element, and a dilatant energy absorbing member having a hollow structure and an open three-dimensional geometry.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace comprising a stretch band as a fastener, leather as a shaping element, and a dilatant energy absorbing element having a hollow structure with a hollow structure and a three-dimensional geometry of an inwardly concave angle type.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace including an elastic band as a fastener, a nonwoven fabric as a shaping member, and a three-dimensional woven dilatant energy absorbing member.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace comprising an elastic fabric as a fastener, a plain cloth as a shaping member, and a dilatant energy absorbing member of purely solid construction.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace comprising an elastic fabric as a fastener, an elastic fabric as a shaping member, and a dilatant energy absorbing member of a simple hollow structure.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace comprising an elastic fabric as a fastener, a three-dimensional woven material as a shaping member, and a dilatant energy-absorbing member of a hollow structure.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener, a 3D printed material as a shaping element, and a dilatant energy absorbing assembly having a hollow structure and a reentrant angular three-dimensional geometry.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener, an open or semi-open cell foam material as a shaping element, and a dilatant energy absorbing assembly having a hollow structure and an open three-dimensional geometry.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace comprising an elastic fabric as a fastener, leather as a shaping element, and a dilatant energy absorbing element having a hollow structure with a hollow structure and a three-dimensional geometry of an inwardly concave angle type.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace including an elastic fabric as a fastener, a nonwoven fabric as a shaping member, and a three-dimensional woven dilatant energy absorbing member.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising a combination of at least two of a stretch band, an elastic fabric, another fabric, and a fastener element as a fastener and a dilatant energy absorbing element of a purely solid construction.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising a combination of at least two of a stretch band, an elastic fabric, another fabric, and a fastener element as a fastener and a dilatant energy absorbing element of a simple hollow structure.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace comprising a combination of at least two of a stretch band, an elastic fabric, another fabric, and a fastener element as a fastener and a dilatant energy absorbing component of a hollow structure.

In accordance with a preferred embodiment of the present invention, a flexible adaptive brace is provided which includes a combination of at least two of a stretch band, an elasticized fabric, another fabric, and a fastener element as well as a dilatant energy absorber assembly having a hollow structure and a reentrant three-dimensional geometry.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising a combination of at least two of a stretch band, an elasticized fabric, another fabric, and a fastener member as well as a dilatant energy absorbing assembly having a hollow structure and an openwork three-dimensional geometry.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising a combination of at least two of a stretch band, an elasticized fabric, another fabric, and a fastener member as well as a dilatant energy absorbing assembly having a hollow structure with a hollow structure therein and a three-dimensional geometry of reentrant angular type.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace comprising a combination of at least two of a stretch band, an elastic fabric, another fabric, and a fastener element as a fastener and a three-dimensional woven dilatant energy absorbing element.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising a combination of at least two of a stretch band, an elasticized fabric, another fabric, and a fastener member as well as a dilatant energy absorbing assembly of a purely solid construction, wherein the energy absorbing assembly is removable.

According to a preferred embodiment of the invention, a flexible adaptive brace is provided which is characterized by comprising a combination of at least two of a stretch band, an elasticized fabric, another fabric, and a fastener member as well as a dilatant energy absorbing assembly of a simple hollow structure, wherein the energy absorbing assembly is removable.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising a combination of at least two of a stretch band, an elasticized fabric, another fabric, and a fastener member as well as a dilatant energy absorbing assembly of a hollow structure, wherein the energy absorbing assembly is removable.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising a combination of at least two of a stretch band, an elasticized fabric, another fabric, and a fastener member as well as a dilatant energy absorbing assembly having a hollow structure and a reentrant three-dimensional geometry, wherein the energy absorbing assembly is removable.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising a combination of at least two of a stretch band, an elasticized fabric, another fabric, and a fastener member as well as a dilatant energy absorbing assembly having a hollow structure and an openwork three-dimensional geometry, wherein the energy absorbing assembly is removable.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising a combination of at least two of a stretch band, an elasticized fabric, another fabric, and a fastener member as well as a dilatant energy absorbing assembly having a hollow structure with a hollow structure therein and a three-dimensional geometry of a reentrant angle type, wherein the energy absorbing assembly is removable.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising a combination of at least two of a stretch band, an elastic fabric, another fabric, and a fastener member as well as a three-dimensional woven dilatant energy absorbing assembly, wherein the energy absorbing assembly is detachable.

In the present invention, it is preferable that the simple solid structure polymer matrix, the simple hollow structure pore wall polymer matrix, and the cell structure cell wall polymer matrix have dilatancy, particularly creep (which may be called cold flow), and easily deform under stress and hardly recover after removing the stress, thereby having plasticity and shape memory. Both this function and dilatancy depend on the same background mechanism, i.e. dynamic or vitrification or entanglement, and can therefore also be referred to as dilatancy-based plasticity and shape memory. The dilatant energy-absorbing assembly has the advantages that the dilatant energy-absorbing assembly can be better shaped and memorized to be tightly attached to the protected part, and the dilatant energy-absorbing assembly is used.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid construction; the dilatant energy absorbing component has dilatancy of the polymer matrix and/or the filler. The dilatancy energy-absorbing assembly of the solid structure improves durability.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid construction; the polymer matrix of the dilatancy energy-absorbing component has vitrification dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid construction; the polymer matrix of the dilatancy energy-absorbing component has dynamic dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid construction; the polymer matrix of the dilatancy energy-absorbing component has dynamic and vitrifying dilatancy simultaneously.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid construction; the polymer matrix of the dilatancy energy-absorbing assembly does not have dilatancy, and the matrix is filled with filler with dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid construction; the polymer matrix of the dilatancy energy-absorbing assembly does not have dilatancy, and the matrix is filled with a filler with vitrification dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid construction; the polymer matrix of the dilatancy energy-absorbing assembly does not have dilatancy, and the matrix is filled with fillers with dynamic dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid construction; the dilatant energy-absorbing component has no dilatant property in a polymer matrix, and the matrix is filled with a filler with the entanglement dilatant property.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid construction; the polymer matrix of the dilatancy energy-absorbing component has no dilatancy, and the matrix is filled with fillers with at least two mechanisms of vitrification, dynamic property and entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid construction; the polymer matrix of the dilatancy energy-absorbing assembly has vitrification dilatancy, and the matrix is filled with filler with dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid construction; the polymer matrix of the dilatancy energy-absorbing assembly has vitrification dilatancy, and the matrix is filled with fillers with different vitrification dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid construction; the polymer matrix of the dilatancy energy-absorbing assembly has vitrification dilatancy, and the matrix is filled with a filler with dynamic dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid construction; the polymer matrix of the dilatancy energy-absorbing assembly has vitrification dilatancy, and the matrix is filled with a filler with entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid construction; the polymer matrix of the dilatancy energy-absorbing component has vitrification dilatancy, and the filler with at least two mechanisms of vitrification, dynamic property and entanglement dilatancy is filled in the matrix.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid construction; the polymer matrix of the dilatancy energy-absorbing assembly has dynamic dilatancy, and fillers with different dynamic dilatancy are filled in the matrix.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid construction; the polymer matrix of the dilatancy energy-absorbing assembly has dynamic dilatancy, and the matrix is filled with a filler with vitrification dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid construction; the polymer matrix of the dilatancy energy-absorbing assembly has dynamic dilatancy, and the matrix is filled with filler with entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid construction; the polymer matrix of the dilatancy energy-absorbing component has dynamic dilatancy, and the matrix is filled with fillers with at least two mechanisms of vitrification, dynamic and entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid construction; the dilatancy energy-absorbing component, its polymer matrix have vitrification nature and dynamic dilatancy simultaneously, fill in the matrix and have the filler of at least one mechanism of vitrification nature, dynamic nature, the nature of entangling dilatancy simultaneously.

In the present invention, the dilatant energy-absorbing component of a purely solid structure, preferably the polymer matrix, is a structure having at least one of a vitrification and a dynamic dilatant mechanism, and is free of fillers or other materials that are not compatible for filling. When the filler is dilatant, at least one of vitrification, dynamic and entanglement dilatant mechanisms is preferably selected, so that a simple solid structure is conveniently obtained.

According to a preferred embodiment of the invention, a flexible adaptive protector is provided, which is characterized in that the protector comprises an elastic fabric as a fastener and a dilatant energy-absorbing component with a simple hollow structure; the dilatant energy absorbing component has dilatancy of the polymer matrix and/or the filler. The dilatant energy-absorbing component with the hollow structure can reduce the weight, and has better flexibility and shock absorption performance under the condition of the same hardness.

According to a preferred embodiment of the invention, a flexible adaptive protector is provided, which is characterized in that the protector comprises an elastic fabric as a fastener and a dilatant energy-absorbing component with a simple hollow structure; the polymer matrix of the dilatancy energy-absorbing component has vitrification dilatancy.

According to a preferred embodiment of the invention, a flexible adaptive protector is provided, which is characterized in that the protector comprises an elastic fabric as a fastener and a dilatant energy-absorbing component with a simple hollow structure; the polymer matrix of the dilatancy energy-absorbing component has dynamic dilatancy.

According to a preferred embodiment of the invention, a flexible adaptive protector is provided, which is characterized in that the protector comprises an elastic fabric as a fastener and a dilatant energy-absorbing component with a simple hollow structure; the polymer matrix of the dilatant energy-absorbing component has at least two mechanisms of dynamic, vitrification and entanglement dilatancy.

According to a preferred embodiment of the invention, a flexible adaptive protector is provided, which is characterized in that the protector comprises an elastic fabric as a fastener and a dilatant energy-absorbing component with a simple hollow structure; the polymer matrix of the dilatancy energy-absorbing assembly does not have dilatancy, and the matrix is filled with filler with dilatancy.

According to a preferred embodiment of the invention, a flexible adaptive protector is provided, which is characterized in that the protector comprises an elastic fabric as a fastener and a dilatant energy-absorbing component with a simple hollow structure; the polymer matrix of the dilatancy energy-absorbing assembly does not have dilatancy, and the matrix is filled with a filler with vitrification dilatancy.

According to a preferred embodiment of the invention, a flexible adaptive protector is provided, which is characterized in that the protector comprises an elastic fabric as a fastener and a dilatant energy-absorbing component with a simple hollow structure; the polymer matrix of the dilatancy energy-absorbing assembly does not have dilatancy, and the matrix is filled with fillers with dynamic dilatancy.

According to a preferred embodiment of the invention, a flexible adaptive protector is provided, which is characterized in that the protector comprises an elastic fabric as a fastener and a dilatant energy-absorbing component with a simple hollow structure; the dilatant energy-absorbing component has no dilatant property in a polymer matrix, and the matrix is filled with a filler with the entanglement dilatant property.

According to a preferred embodiment of the invention, a flexible adaptive protector is provided, which is characterized in that the protector comprises an elastic fabric as a fastener and a dilatant energy-absorbing component with a simple hollow structure; the polymer matrix of the dilatancy energy-absorbing component has no dilatancy, and the matrix is filled with fillers with at least two mechanisms of vitrification, dynamic property and entanglement dilatancy.

According to a preferred embodiment of the invention, a flexible adaptive protector is provided, which is characterized in that the protector comprises an elastic fabric as a fastener and a dilatant energy-absorbing component with a simple hollow structure; the polymer matrix of the dilatancy energy-absorbing assembly has vitrification dilatancy, and the matrix is filled with filler with dilatancy.

According to a preferred embodiment of the invention, a flexible adaptive protector is provided, which is characterized in that the protector comprises an elastic fabric as a fastener and a dilatant energy-absorbing component with a simple hollow structure; the polymer matrix of the dilatancy energy-absorbing assembly has vitrification dilatancy, and the matrix is filled with fillers with different vitrification dilatancy.

According to a preferred embodiment of the invention, a flexible adaptive protector is provided, which is characterized in that the protector comprises an elastic fabric as a fastener and a dilatant energy-absorbing component with a simple hollow structure; the polymer matrix of the dilatancy energy-absorbing assembly has vitrification dilatancy, and the matrix is filled with a filler with dynamic dilatancy.

According to a preferred embodiment of the invention, a flexible adaptive protector is provided, which is characterized in that the protector comprises an elastic fabric as a fastener and a dilatant energy-absorbing component with a simple hollow structure; the polymer matrix of the dilatancy energy-absorbing assembly has vitrification dilatancy, and the matrix is filled with a filler with entanglement dilatancy.

According to a preferred embodiment of the invention, a flexible adaptive protector is provided, which is characterized in that the protector comprises an elastic fabric as a fastener and a dilatant energy-absorbing component with a simple hollow structure; the polymer matrix of the dilatancy energy-absorbing component has vitrification dilatancy, and the filler with at least two mechanisms of vitrification, dynamic property and entanglement dilatancy is filled in the matrix.

According to a preferred embodiment of the invention, a flexible adaptive protector is provided, which is characterized in that the protector comprises an elastic fabric as a fastener and a dilatant energy-absorbing component with a simple hollow structure; the polymer matrix of the dilatancy energy-absorbing assembly has dynamic dilatancy, and fillers with different dynamic dilatancy are filled in the matrix.

According to a preferred embodiment of the invention, a flexible adaptive protector is provided, which is characterized in that the protector comprises an elastic fabric as a fastener and a dilatant energy-absorbing component with a simple hollow structure; the polymer matrix of the dilatancy energy-absorbing assembly has dynamic dilatancy, and the matrix is filled with a filler with vitrification dilatancy.

According to a preferred embodiment of the invention, a flexible adaptive protector is provided, which is characterized in that the protector comprises an elastic fabric as a fastener and a dilatant energy-absorbing component with a simple hollow structure; the polymer matrix of the dilatancy energy-absorbing assembly has dynamic dilatancy, and the matrix is filled with filler with entanglement dilatancy.

According to a preferred embodiment of the invention, a flexible adaptive protector is provided, which is characterized in that the protector comprises an elastic fabric as a fastener and a dilatant energy-absorbing component with a simple hollow structure; the polymer matrix of the dilatancy energy-absorbing component has dynamic dilatancy, and the matrix is filled with fillers with at least two mechanisms of vitrification, dynamic and entanglement dilatancy.

According to a preferred embodiment of the invention, a flexible adaptive protector is provided, which is characterized in that the protector comprises an elastic fabric as a fastener and a dilatant energy-absorbing component with a simple hollow structure; the polymer matrix of the dilatancy energy-absorbing component has at least two mechanisms of vitrification property, dynamic property and entanglement dilatancy, and the filler having at least one mechanism of vitrification property, dynamic property and entanglement dilatancy is filled in the matrix.

In the present invention, the dilatant energy-absorbing component having a simple hollow structure, preferably the polymer matrix, is a structure having at least one of a vitrification mechanism and a dynamic dilatant mechanism, and is free of a filler or other material that is not compatible with filling. When the filler is dilatant, at least one of vitrification, dynamic and entanglement dilatant mechanisms is preferably selected, so that a simple hollow structure is conveniently obtained.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of solid cell structure; the dilatant energy absorbing component has dilatancy of the polymer matrix and/or the filler.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of solid cell structure; the cell wall and/or the cell core of the dilatant energy-absorbing component have dilatancy, and the polymer matrix of the dilatant energy-absorbing component has vitrification dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of solid cell structure; the cell walls and/or the cell cores of the dilatant energy absorbing component have dilatancy, and the polymer matrix of the dilatant energy absorbing component has dynamic dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of solid cell structure; the cell wall and/or the cell core of the dilatant energy-absorbing component have dilatancy, and the polymer matrix of the dilatant energy-absorbing component has dynamic and vitrifying dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of solid cell structure; the cell walls and/or the cell cores of the dilatant energy absorbing component have dilatancy, the polymer matrix does not have dilatancy, and the matrix is filled with filler with dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of solid cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix does not have dilatancy, and the matrix is filled with a filler with vitrification dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of solid cell structure; the cell walls and/or the cell cores of the dilatant energy absorbing component have dilatancy, the polymer matrix does not have dilatancy, and the matrix is filled with fillers with dynamic dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of solid cell structure; the cell wall and/or the cell core of the dilatant energy absorbing component have dilatancy, the polymer matrix does not have dilatancy, and the matrix is filled with filler with entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of solid cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix of the dilatancy energy-absorbing component does not have dilatancy, and the matrix is filled with fillers which have at least two mechanisms of vitrification, dynamic property and entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of solid cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix has vitrification dilatancy, and the matrix is filled with filler with dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of solid cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix of the dilatancy energy-absorbing component has vitrification dilatancy, and the matrix is filled with fillers with different vitrification dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of solid cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix has vitrification dilatancy, and the matrix is filled with a filler with dynamic dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of solid cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix has vitrification dilatancy, and the matrix is filled with a filler with entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of solid cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix of the dilatancy energy-absorbing component has vitrification dilatancy, and the matrix is filled with fillers with at least two mechanisms of vitrification, dynamic property and entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing element of purely solid cell construction; the cell walls and/or the cell cores of the dilatant energy-absorbing component have dilatancy, the polymer matrix has dynamic dilatancy, and the matrix is filled with fillers with different dynamic dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of solid cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix has dynamic dilatancy, and the matrix is filled with a filler with vitrification dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of solid cell structure; the cell wall and/or the cell core of the dilatant energy-absorbing component have dilatancy, the polymer matrix has dynamic dilatancy, and the matrix is filled with filler with entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of solid cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix of the dilatancy energy-absorbing component has dynamic dilatancy, and the matrix is filled with fillers which have at least two mechanisms of vitrification, dynamic and entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of solid cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix of the dilatancy energy-absorbing component has vitrification and dynamic dilatancy at the same time, and the matrix is filled with a filler which has at least one mechanism of vitrification, dynamic and entanglement dilatancy.

In embodiments of the present invention, the dilatant energy absorbing element of the solid cell structure may also improve durability. Meanwhile, incompatible matrixes and fillers or combination of different matrixes are provided through a cell structure, or better energy absorption performance is provided through means of 3D printing, three-dimensional weaving, step-by-step or independent forming processing and the like.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of hollow cell structure; the cell walls and/or the cell cores of the dilatant energy absorbing component have dilatancy, and the polymer matrix and/or the filler have dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of hollow cell structure; the cell wall and/or the cell core of the dilatant energy-absorbing component have dilatancy, and the polymer matrix of the dilatant energy-absorbing component has vitrification dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of hollow cell structure; the cell walls and/or the cell cores of the dilatant energy absorbing component have dilatancy, and the polymer matrix of the dilatant energy absorbing component has dynamic dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of hollow cell structure; the cell wall and/or the cell core of the dilatant energy-absorbing component have dilatancy, and the polymer matrix simultaneously has at least two mechanisms of dynamic dilatancy, vitrification and entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of hollow cell structure; the cell walls and/or the cell cores of the dilatant energy absorbing component have dilatancy, the polymer matrix does not have dilatancy, and the matrix is filled with filler with dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix does not have dilatancy, and the matrix is filled with a filler with vitrification dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of hollow cell structure; the cell walls and/or the cell cores of the dilatant energy absorbing component have dilatancy, the polymer matrix does not have dilatancy, and the matrix is filled with fillers with dynamic dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of hollow cell structure; the cell wall and/or the cell core of the dilatant energy absorbing component have dilatancy, the polymer matrix does not have dilatancy, and the matrix is filled with filler with entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix of the dilatancy energy-absorbing component does not have dilatancy, and the matrix is filled with fillers which have at least two mechanisms of vitrification, dynamic property and entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix has vitrification dilatancy, and the matrix is filled with filler with dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix of the dilatancy energy-absorbing component has vitrification dilatancy, and the matrix is filled with fillers with different vitrification dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix has vitrification dilatancy, and the matrix is filled with a filler with dynamic dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix has vitrification dilatancy, and the matrix is filled with a filler with entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix of the dilatancy energy-absorbing component has vitrification dilatancy, and the matrix is filled with fillers with at least two mechanisms of vitrification, dynamic property and entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of hollow cell structure; the cell walls and/or the cell cores of the dilatant energy-absorbing component have dilatancy, the polymer matrix has dynamic dilatancy, and the matrix is filled with fillers with different dynamic dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix has dynamic dilatancy, and the matrix is filled with a filler with vitrification dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of hollow cell structure; the cell wall and/or the cell core of the dilatant energy-absorbing component have dilatancy, the polymer matrix has dynamic dilatancy, and the matrix is filled with filler with entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix of the dilatancy energy-absorbing component has dynamic dilatancy, and the matrix is filled with fillers which have at least two mechanisms of vitrification, dynamic and entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized in that it comprises an elastic fabric as a fastener and a dilatant energy absorbing component of hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix of the dilatancy energy-absorbing component has at least two mechanisms of vitrification property, dynamic property and entanglement dilatancy, and the matrix is filled with a filler which has at least one mechanism of vitrification property, dynamic property and entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing component of a hollow cell structure; the cell walls and/or the cell cores of the dilatant energy absorbing component have dilatancy, and the polymer matrix and/or the filler have dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing component of a hollow cell structure; the cell wall and/or the cell core of the dilatant energy-absorbing component have dilatancy, and the polymer matrix of the dilatant energy-absorbing component has vitrification dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing component of a hollow cell structure; the cell walls and/or the cell cores of the dilatant energy absorbing component have dilatancy, and the polymer matrix of the dilatant energy absorbing component has dynamic dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing component of a hollow cell structure; the cell wall and/or the cell core of the dilatant energy-absorbing component have dilatancy, and the polymer matrix simultaneously has at least two mechanisms of dynamic dilatancy, vitrification and entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing component of a hollow cell structure; the cell walls and/or the cell cores of the dilatant energy absorbing component have dilatancy, the polymer matrix does not have dilatancy, and the matrix is filled with filler with dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing component of a hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix does not have dilatancy, and the matrix is filled with a filler with vitrification dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing component of a hollow cell structure; the cell walls and/or the cell cores of the dilatant energy absorbing component have dilatancy, the polymer matrix does not have dilatancy, and the matrix is filled with fillers with dynamic dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing component of a hollow cell structure; the cell wall and/or the cell core of the dilatant energy absorbing component have dilatancy, the polymer matrix does not have dilatancy, and the matrix is filled with filler with entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing component of a hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix of the dilatancy energy-absorbing component does not have dilatancy, and the matrix is filled with fillers which have at least two mechanisms of vitrification, dynamic property and entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing component of a hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix has vitrification dilatancy, and the matrix is filled with filler with dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing component of a hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix of the dilatancy energy-absorbing component has vitrification dilatancy, and the matrix is filled with fillers with different vitrification dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing component of a hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix has vitrification dilatancy, and the matrix is filled with a filler with dynamic dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing component of a hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix has vitrification dilatancy, and the matrix is filled with a filler with entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing component of a hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix of the dilatancy energy-absorbing component has vitrification dilatancy, and the matrix is filled with fillers with at least two mechanisms of vitrification, dynamic property and entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing component of a hollow cell structure; the cell walls and/or the cell cores of the dilatant energy-absorbing component have dilatancy, the polymer matrix has dynamic dilatancy, and the matrix is filled with fillers with different dynamic dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing component of a hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix has dynamic dilatancy, and the matrix is filled with a filler with vitrification dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing component of a hollow cell structure; the cell wall and/or the cell core of the dilatant energy-absorbing component have dilatancy, the polymer matrix has dynamic dilatancy, and the matrix is filled with filler with entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing component of a hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix of the dilatancy energy-absorbing component has dynamic dilatancy, and the matrix is filled with fillers which have at least two mechanisms of vitrification, dynamic and entanglement dilatancy.

According to a preferred embodiment of the present invention, there is provided a flexible adaptive brace characterized by comprising an elastic fabric as a fastener and a dilatant energy absorbing component of a hollow cell structure; the cell wall and/or the cell core of the dilatancy energy-absorbing component have dilatancy, the polymer matrix of the dilatancy energy-absorbing component has at least two mechanisms of vitrification property, dynamic property and entanglement dilatancy, and the matrix is filled with a filler which has at least one mechanism of vitrification property, dynamic property and entanglement dilatancy.

In the embodiment of the present invention, at least the hollow structure and the cell structure may be prepared by 3D printing (especially multi-material 3D printing), by adding hollow microspheres/expandable microspheres/other expandable materials/bag-packed particles and/or hollow microspheres/expandable particles/other expandable materials particles/independent bag-shaped particles containing filling materials, by filling dilatant/non-dilatant materials in the pores of the pure hollow structure, by generating phase separation structures in different polymer segments or different polymers (compositions) of the same polymer chain, by three-dimensional weaving, step-by-step molding, or by other suitable processing methods. In the embodiment of the invention, the dilatancy energy-absorbing component with hollow and hollow hybrid cell structure is preferably realized by one or more of chemical foaming agent foaming, physical foaming agent foaming, blending phase-separated materials, adding foaming/foamable particles containing dilatancy filling materials, adding other incompatible foaming materials and adding independent bag-shaped micro-particles; wherein, the foaming particles comprise foaming polymer microspheres and hollow glass beads, and the other foaming materials comprise foaming polymer particles (including but not limited to independently foaming particles and crushed foaming polymer particles); the independent capsular bag is preferably a vesicular structure formed by a surfactant or a microcapsule structure formed by a polymer. The dilatancy energy absorption component of the hollow/hollow hybrid cell structure (particularly when unfilled or incompletely filled hollow structures still exist in the hollow hybrid) can reduce the weight, and has better flexibility and shock absorption under the condition of the same hardness; meanwhile, incompatible matrixes and fillers or combination of different matrixes are provided through a cell structure, or better energy absorption performance is provided through means of 3D printing, three-dimensional weaving, step-by-step or independent forming processing and the like.

In the embodiment of the invention, further, the shape and three-dimensional geometric configuration of the dilatant energy-absorbing component, such as hollow, wave, concave angle and the like, are preferably combined, so that the weight is reduced, the fitting degree is improved, the comfort is improved, and the energy-absorbing performance is improved. The shape and the three-dimensional geometrical configuration can be realized by molding, 3D printing, three-dimensional weaving, welding, laminating, cutting and the like.

In the embodiment of the invention, the dilatant energy-absorbing assembly may be in a form of a layer, a segment or a combination thereof. Different layers, sections and the like can be not combined, can also be combined by magic tape, adhesive, buckles, clamping grooves or sewing, can also be packaged in high-molecular bags or bags, and can also be combined by methods such as hot pressing, 3D printing and welding.

In the invention, the dilatant energy-absorbing component can be a whole block/whole piece or a plurality of blocks/pieces/smaller size and then assembled, thus being convenient for being used at the parts such as joints and the like which need bending or irregular.

In the embodiment of the present invention, the elastic fabric fastener may be directly in the form of a sleeve, a collar, a glove, a fist, a sock, a pair of trousers, a jacket, a head, or the like, and the flexible adaptive brace may be in the form of a sleeve, a collar, or the like, which can be worn without using any other accessory; optionally, additional fasteners such as buckles, magic tapes, zippers and elastic bands are added, so that the fixable strength after wearing is improved.

According to another preferred embodiment of the present invention, the elastic fabric fastening member may be replaced by an elastic band and other fastening members, for example, a combination of a general fabric and an energy absorbing assembly is combined with the elastic band by sewing, etc., and the elastic band is combined with a buckle, a magic tape, etc. to form a protector. The elastic bands may be elastomeric by itself or a suitable combination of elastomeric and fibrous.

According to a preferred embodiment of the present invention, the flexible adaptive brace comprising the dilatant energy absorbing assembly and fastener is integrally formed by multi-material 3D printing, wherein both the dilatant energy absorbing assembly and the fastener are formed by 3D printing and the brace is integrally formed during the multi-material 3D printing. Wherein the dilatant energy absorbing component is selected from the group consisting of a purely solid structure, a purely hollow structure, a solid cellular structure, a hollow cellular structure, an empty heterocellular structure, and wherein the polymer matrix and/or the filler is dilatant, wherein the dilatant polymer matrix is selected from the group consisting of a vitreous dilatant, a dynamic dilatant, and an entangled dilatant, and wherein the dilatant filler is selected from the group consisting of a vitreous dilatant, a dynamic dilatant, an entangled dilatant, a dispersive dilatant, and a pneumatic dilatant. The 3D printing fastener can have any suitable structure such as a sleeve shape, a sleeve ring shape, a belt shape and the like, can be a solid or hollow structure, and can also have a three-dimensional structure; the elastic structure can be only used, or the elastic structure and the buckle structure such as a buckle can be simultaneously contained.

In the invention, through the multi-material 3D printing and integrated molding, personalized customization can be carried out, and the best user experience and use effect, such as compact fitting, can be obtained.

According to a preferred embodiment of the invention, the dilatant energy absorbing assembly and/or the fastener and/or the shape is 3D printed from a single material and/or from multiple materials and then combined to form the flexible adaptive brace. By separating the 3D printing or by 3D printing only one of the components, other non-3D printing components can be selected, and other techniques and solutions can be fully utilized to obtain the combined advantages.

According to a preferred embodiment of the invention, the dilatant energy-absorbing assembly is directly formed on a flexible fibre fabric. The structure and the method omit bonding methods such as bonding, sewing and the like, and have better mechanical property.

According to a preferred embodiment of the invention, the flexible adaptive brace is formed by knitting the fastener and simultaneously combining it with the dilatant energy absorbing component. The dilatant energy-absorbing component may be selected from the group consisting of a simple solid structure, a simple hollow structure, a solid cellular structure, a hollow cellular structure, and an air-hybrid cellular structure, and wherein the polymer matrix and/or filler may be dilatant, the dilatant polymer matrix may be selected from the group consisting of a vitreous dilatant, a dynamic dilatant, and an entangled dilatant, and the dilatant filler may be selected from the group consisting of a vitreous dilatant, a dynamic dilatant, an entangled dilatant, a dispersive dilatant, and a pneumatic dilatant. The dilatant energy absorbing component may be selected from the group including, but not limited to, sheet, block, tube, wire, fiber, strip; the tubular shape, the linear shape, the fiber shape and the strip shape are preferred, and the knitting is convenient. The embodiment forms the protector by only weaving the fastener, i.e. combining the energy absorbing components together (fixing the energy absorbing components on the protector), does not need other combining means, saves working procedures, accessories, combining materials and the like, and is environment-friendly and simple. The weaving can be flat weaving and/or three-dimensional weaving to obtain structures with different shapes, and can be sleeve-shaped, sleeve-shaped and belt-shaped structures. The protector may be selected from a sleeve shape and a collar shape.

According to a preferred embodiment of the invention, the dilatant energy-absorbing component comprises at least one solid cellular structure, the cell cores of the solid cellular structure are selected from at least one intrinsic dilatant polymer, and the polymer matrix/cell walls constituting the dilatant energy-absorbing component are free of dilatancy. Wherein the polymer matrix of the dilatant energy absorbing component optionally further comprises at least one dynamic covalent bond and/or at least one supramolecular interaction. The core-intrinsic dilatant polymer preferably comprises, but is not limited to, dynamic dilatant polymers based on boron-containing dynamic covalent bonds, monodentate hydrogen bonding, bidentate hydrogen bonding, monodentate metal-ligand interactions, ionic cluster interactions, ion-dipole interactions, host-guest interactions, lewis acid-base pair interactions, ionic hydrogen bonding. Wherein said cell wall polymer matrix is preferably selected from the group consisting of common covalently cross-linked elastomers, dynamic covalently cross-linked, non-covalently cross-linked elastomers, wherein non-covalently cross-linked elastomers are preferably selected from the group consisting of but not limited to said thermoplastic elastomers, including but not limited to any one or several of the following: styrene thermoplastic elastomer, polyolefin thermoplastic elastomer, polyurethane thermoplastic elastomer, polyester thermoplastic elastomer, polyamide thermoplastic elastomer, ethylene copolymer thermoplastic elastomer, 1, 2-polybutadiene thermoplastic elastomer, trans-polyisoprene thermoplastic elastomer, thermoplastic natural rubber, polyvinyl chloride thermoplastic elastomer, chlorinated polyethylene thermoplastic elastomer, polysiloxane thermoplastic elastomer, thermoplastic fluorine-containing elastomer, ionic thermoplastic elastomer, melt-processed thermoplastic elastomer; styrene thermoplastic elastomers, polyolefin thermoplastic elastomers, polyurethane thermoplastic elastomers, polyester thermoplastic elastomers, polyamide thermoplastic elastomers, ethylene copolymer thermoplastic elastomers, 1, 2-polybutadiene thermoplastic elastomers are preferred; wherein the polyurethane thermoplastic elastomer is preferably selected from the group consisting of thermoplastic polyurethanes including but not limited to Luborun, Pasteur, Bayer, and Hunsmen, the polyamide thermoplastic elastomer includes but not limited to PEBAX from Arkema, UPAE from Cardiogenesis, the polyolefin thermoplastic elastomer is preferably selected from the group consisting of but not limited to EVA, EPDM, SBS, SIS, SEBS, ABS, and other polyolefin thermoplastic elastomers from Dow chemical, Mitsui, and the polyester thermoplastic elastomer is selected from the group consisting of thermoplastic polyesters from Dupont.

According to a preferred embodiment of the invention, the dilatant energy-absorbing component comprises at least one solid cell structure, the core of the solid cell structure is dilatant and the polymer matrix/cell walls constituting the dilatant energy-absorbing component are dilatant. Wherein the polymer matrix of the dilatant energy absorbing component optionally further comprises at least one dynamic covalent bond and/or at least one supramolecular interaction. The dilatant polymer is preferably selected from the group consisting of, but not limited to, dynamic dilatant polymers based on boron-containing dynamic covalent bonds, monodentate hydrogen bonding, bidentate hydrogen bonding, monodentate metal-ligand bonding, ionic clustering, ion-dipole bonding, host-guest bonding, lewis acid-base pairing, ionic hydrogen bonding.

According to a preferred embodiment of the invention, the dilatant energy-absorbing component comprises at least one solid cell structure, the core of the solid cell structure being non-dilatant and the polymer matrix/cell walls constituting the dilatant energy-absorbing component being dilatant. Wherein the polymer matrix of the dilatant energy absorbing component optionally further comprises at least one dynamic covalent bond and/or at least one supramolecular interaction. The dilatant polymer is preferably selected from the group consisting of, but not limited to, dynamic dilatant polymers based on boron-containing dynamic covalent bonds, monodentate hydrogen bonding, bidentate hydrogen bonding, monodentate metal-ligand bonding, ionic clustering, ion-dipole bonding, host-guest bonding, lewis acid-base pairing, ionic hydrogen bonding.

According to a preferred embodiment of the invention, the dilatant energy-absorbing component comprises at least one solid cellular structure, the cell cores of the solid cellular structure are selected from at least one intrinsic dilatant polymer, and the polymer matrix/cell walls constituting the dilatant energy-absorbing component are free of dilatancy. Wherein the polymer matrix of the dilatant energy absorbing component optionally further comprises at least one dynamic covalent bond and/or at least one supramolecular interaction. The dilatant polymer is preferably selected from the group consisting of, but not limited to, dynamic dilatant polymers based on boron-containing dynamic covalent bonds, monodentate hydrogen bonding, bidentate hydrogen bonding, monodentate metal-ligand bonding, ionic clustering, ion-dipole bonding, host-guest bonding, lewis acid-base pairing, ionic hydrogen bonding.

According to a preferred embodiment of the invention, the dilatant energy-absorbing component comprises at least one hollow cell structure, the core of the hollow cell structure being non-dilatant and the polymer matrix/cell walls constituting the dilatant energy-absorbing component being dilatant. Wherein the polymer matrix of the dilatant energy absorbing component optionally further comprises at least one dynamic covalent bond and/or at least one supramolecular interaction. The dilatant polymer is preferably selected from the group consisting of, but not limited to, dynamic dilatant polymers based on boron-containing dynamic covalent bonds, monodentate hydrogen bonding, bidentate hydrogen bonding, monodentate metal-ligand bonding, ionic clustering, ion-dipole bonding, host-guest bonding, lewis acid-base pairing, ionic hydrogen bonding.

According to a preferred embodiment of the invention, the dilatant energy-absorbing component comprises at least one hollow cell structure, the core of the hollow cell structure is dilatant, and the polymer matrix/cell walls forming the dilatant energy-absorbing component are dilatant. Wherein the polymer matrix of the dilatant energy absorbing component optionally further comprises at least one dynamic covalent bond and/or at least one supramolecular interaction. The dilatant polymer is preferably selected from the group consisting of, but not limited to, dynamic dilatant polymers based on boron-containing dynamic covalent bonds, monodentate hydrogen bonding, bidentate hydrogen bonding, monodentate metal-ligand bonding, ionic clustering, ion-dipole bonding, host-guest bonding, lewis acid-base pairing, ionic hydrogen bonding.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component is a simple solid structure, and the polymer matrix of the dilatant energy-absorbing component is an intrinsic dilatant polymer containing organic borate bonds.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component is a simple solid structure, and the polymer matrix of the dilatant energy-absorbing component is an intrinsic dilatant polymer containing inorganic borate bonds.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component is a simple solid structure, and the polymer matrix of the dilatant energy-absorbing component is an intrinsic dilatant polymer containing organoboronate silicone linkages.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component is a simple solid structure, and the polymer matrix of the dilatant energy-absorbing component is an intrinsic dilatant polymer containing inorganic borosilicate silicone bonds.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component has a simple hollow structure, and the polymer matrix of the dilatant energy-absorbing component is an intrinsic dilatant polymer containing organic borate bonds.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component has a simple hollow structure, and the polymer matrix of the dilatant energy-absorbing component is an intrinsic dilatant polymer containing inorganic borate bonds.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatant energy-absorbing component is an intrinsic dilatant polymer containing organoboronate silicone bonds.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component has a simple hollow structure, and the polymer matrix of the dilatant energy-absorbing component is an intrinsic dilatant polymer containing inorganic borosilicate silicone bonds.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component has a solid cell structure, and the cell wall polymer matrix of the dilatant energy-absorbing component is an intrinsic dilatant polymer containing organic boronic acid ester bonds.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component has a solid cell structure, and the cell wall polymer matrix of the dilatant energy-absorbing component is an intrinsic dilatant polymer containing inorganic borate bonds.

According to a preferred embodiment of the invention, the dilatant energy-absorbing component is a solid cell structure, and the cell wall polymer matrix of the dilatant energy-absorbing component is an intrinsic dilatant polymer containing organoboronic acid silicone linkages.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component has a solid cell structure, and the cell wall polymer matrix of the dilatant energy-absorbing component is an intrinsic dilatant polymer comprising inorganic borosilicate silicone linkages.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component has a solid cellular structure, and the core and the cell wall polymer matrix of the dilatant energy-absorbing component are intrinsic dilatant polymers containing organic boronic acid ester bonds.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component has a solid cellular structure, and the core and the cell wall polymer matrix of the dilatant energy-absorbing component are intrinsic dilatant polymers containing inorganic borate bonds.

According to a preferred embodiment of the invention, the dilatant energy-absorbing component is a solid cell structure, and the cell core and the cell wall polymer matrix of the dilatant energy-absorbing component are intrinsic dilatant polymers containing organoboronate silicone linkages.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component has a solid cell structure, and the core and the cell wall polymer matrix of the dilatant energy-absorbing component are intrinsic dilatant polymers containing inorganic borosilicate silicone linkages.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component has a hollow cell structure, and the cell wall polymer matrix of the dilatant energy-absorbing component is an intrinsic dilatant polymer containing organic boronic acid ester bonds.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component has a hollow cell structure, and the cell wall polymer matrix of the dilatant energy-absorbing component is an intrinsic dilatant polymer containing inorganic borate bonds.

According to a preferred embodiment of the invention, the dilatant energy-absorbing component has a hollow cell structure, and the cell wall polymer matrix of the dilatant energy-absorbing component is an intrinsic dilatant polymer containing organoboronic acid silicone bonds.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component has a hollow cell structure, and the cell core and the cell wall polymer matrix of the dilatant energy-absorbing component are intrinsic dilatant polymers containing inorganic borosilicate silicone bonds.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component has a hollow cell structure, and the cell core and the cell wall polymer matrix of the dilatant energy-absorbing component are intrinsic dilatant polymers containing organic borate bonds.

According to a preferred embodiment of the present invention, the dilatant energy-absorbing component has a hollow cell structure, and the cell core and the cell wall polymer matrix of the dilatant energy-absorbing component are intrinsic dilatant polymers containing inorganic borate bonds.

According to a preferred embodiment of the invention, the dilatant energy-absorbing component is of a hollow cell structure, and the cell core and the cell wall polymer matrix of the dilatant energy-absorbing component are intrinsic dilatant polymers containing organoboronate silicone linkages.

According to a preferred embodiment of the present invention, the dilatant energy absorbing component may optionally further comprise other boron-containing dynamic covalent bonds, dynamic acid ester bonds, dynamic covalent bonds based on reversible free radicals, and other strong dynamic covalent bonds, and optionally supramolecular interactions.

According to a preferred embodiment of the present invention, the main chain of the intrinsic dilatant polymer in the dilatant energy absorbing component is selected from the group consisting of carbon chain structure, carbon-hetero chain structure, elemental organic chain structure, and carbon-hetero element chain structure, and the polymer matrix constituting the dilatant energy absorbing component has no dilatancy.

Wherein, the main chain of the carbon chain structure is composed of carbon atoms, which is selected from but not limited to any of the following groups, any unsaturated form, any substituted form, any hybridized form and the combination thereof: polyolefin-based chains such as polyethylene chains, polypropylene chains, polyisobutylene chains, polystyrene chains, polyvinyl chloride chains, polyvinylidene chloride chains, polyvinyl fluoride chains, polytetrafluoroethylene chains, polytrifluorochloroethylene chains, polyvinyl acetate chains, polyvinyl alkyl ether chains, polybutadiene chains, polyisoprene chains, polychloroprene chains, polynorbornene chains, and the like; polyacrylic acid chains such as polyacrylic acid chains, polyacrylamide chains, polymethyl acrylate chains, polymethyl methacrylate chains, and the like; polyacrylonitrile-based chains such as polyacrylonitrile chains and the like; preferred are polyethylene chains, polypropylene chains, polystyrene chains, polyvinyl chloride chains, polybutadiene chains, polyisoprene chains, polyacrylic acid chains, polyacrylamide chains, and polyacrylonitrile chains.

Wherein, the main chain of the carbon hetero-chain structure is composed of carbon atoms and hetero atoms such as nitrogen, oxygen, sulfur and the like, and is selected from any one of the following groups, any unsaturated form, any substituted form, any hybridized form and combinations thereof: it is selected from polyether chains such as polyethylene oxide chains, polypropylene oxide chains, polytetrahydrofuran chains, epoxy resin chains, phenolic resin chains, polyphenylene ether chains, and the like; polyester-based chains such as polycaprolactone chains, polypentalactone chains, polylactide chains, polyethylene terephthalate chains, unsaturated polyester chains, alkyd resin chains, polycarbonate chains, bio-polyester chains, liquid crystal polyester chains, and the like; polyamine chains such as polyamide chains, polyimide chains, polyurethane chains, polyurea chains, polythiourethane chains, urea resin chains, melamine resin chains, liquid crystal polymer chains, and the like; polysulfide chains such as polysulfone chains, polyphenylene sulfide chains, etc.; polyethylene oxide chains, polytetrahydrofuran chains, epoxy resin chains, polycaprolactone chains, polylactide chains, polyamide chains, polyurethane chains, polyurea chains are preferred.

Wherein the molecular main chain of the element organic chain structure is composed of heteroatoms of inorganic elements such as silicon, boron, phosphorus and the like, and heteroatoms of nitrogen and sulfur, and is selected from any one of the following groups, any unsaturated form, any substituted form, any hybridized form and combinations thereof: silicone-based polymer chains such as polyorganosiloxane chains, polyorganosiloxane borane chains, polyorganosiloxane nitrogen chains, polyorganosiloxane sulfur chains; organoboron polymer chains such as organoborane chains, polyorganoborazine chains, polyorganoborasulfane chains, polyorganoboraphosphoalkane chains, and the like; an organophosphorus-based polymer chain; an organolead-based polymer chain; an organotin-based polymer chain; an organic arsenic-based polymer chain; an organic antimony-based polymer chain; polyorganosiloxane chains and polyorganoborane chains are preferred.

Wherein, the carbon-hetero element chain structure, the molecule main chain of which is composed of carbon atoms, inorganic element hetero atoms such as silicon, boron, phosphorus and the like, and optional hetero atoms such as nitrogen, oxygen, sulfur and the like, is selected from any one of the following groups, any unsaturated form, any substituted form, any hybridized form and combination thereof: a carboheteroaganosilane chain, a carboheteroaganosiloxane chain, a carboheteroaorganosilboran chain, a carboheteroaorganosilazane chain, a carboheteroaganosiloxathiolane chain, a carboheteroaorganoborane chain, a carboheteroaorganoborazoxane chain, a carboheteroaorganoborethiane chain, a carboheteroaorganophosphorophosphane chain; preference is given to carboheteroaganosiloxane chains, carboheteroaganosiloxanes chains, carboheteroaorganoborane chains.

According to a preferred embodiment of the invention, the polymer matrix of the dilatant energy-absorbing component optionally further comprises at least one dynamic covalent bond and/or at least one supramolecular interaction. Wherein, the content of the dynamic dilatancy composition in the dilatancy energy-absorbing component is preferably 5-50%, the content of the vitreous dilatancy composition is preferably 5-50%, and the content of the entanglement dilatancy composition is preferably 5-30%.

In an embodiment of the invention, the polymer matrix used to prepare the dilatant energy absorbing assembly may have a topology selected from the group consisting of linear, cyclic, branched, clustered, crosslinked, and combinations thereof.

In the embodiment of the present invention, the polymer matrix having a crosslinked structure may have only one crosslinked network (single-network structure) or may have a plurality of crosslinked networks (multi-network structure). When the polymer matrix contains two or more crosslinked networks, the two or more crosslinked networks can be blended with each other, can be mutually interpenetrated, can be partially mutually interpenetrated, and can also be a combination of the three cases, but the invention is not limited to the crosslinked networks; wherein two or more crosslinked networks may be the same or different.

The polymer matrix in the dilatant energy absorbing assembly and other components described herein is preferably a cross-linked structure to provide better mechanical strength and structural stability; the dilatant polymer can be crosslinked by common covalent bonds to form a common covalent crosslinked network, or crosslinked by dynamic covalent bonds to form a dynamic covalent crosslinked network, or crosslinked by supramolecular action to form a supramolecular crosslinked network, or simultaneously crosslinked by common covalent bonds and dynamic covalent bonds and/or supramolecular action to form a hybrid crosslinked network, or simultaneously crosslinked by dynamic covalent bonds and supramolecular action to form a hybrid dynamic crosslinked network, and the hybrid network and the multi-network of the crosslinked network. Particularly, when a network formed by only crosslinking with a strong dynamic covalent bond or strong dynamic supramolecular action in a partial crosslinked network in the polymer matrix is called a strong dynamic covalent crosslinked network or a strong dynamic supramolecular crosslinked network, a network formed by only crosslinking with a weak dynamic covalent bond or weak dynamic supramolecular action is called a weak dynamic covalent crosslinked network or a weak dynamic supramolecular crosslinked network, a network formed by crosslinking with a strong dynamic covalent bond and a strong dynamic supramolecular action is called a strong dynamic hybrid dynamic crosslinked network, and a network formed by crosslinking with a weak dynamic covalent bond and a weak dynamic supramolecular action is called a weak dynamic hybrid dynamic crosslinked network.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 80%.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 80%.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy based on a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 80%.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy based on a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 80%.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 80%.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 80%.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 80%.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 80%.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 80%.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 80%.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyurethane based on dynamic dilatancy of a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 80%.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyurethane based on dynamic dilatancy of a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 80%.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 80%.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 80%.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 80%.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 80%.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy-absorbing component is a solid cell structure with dynamic dilatancy in the cell walls and/or cell core; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cell structure with dynamic dilatancy in the cell walls and/or cell core; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy-absorbing component is a solid cell structure having a cell wall and/or cell core with dynamic dilatancy based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cell structure having a cell wall and/or cell core with dynamic dilatancy based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polysiloxane based on the dynamic dilatancy of a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure having a cell wall and/or cell core comprising a hybrid dynamic covalently cross-linked polysiloxane that is dynamic dilatant based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyester based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyester based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy, and the cell wall has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy, and the cell wall has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, and the cell wall has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, and the cell wall has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell core of which comprises a dynamic covalent and/or hybrid dynamic covalent cross-linked polysiloxane based on the dynamic dilatancy of a boron-containing dynamic covalent bond, the cell walls of which have no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure having a core of dynamically covalently and/or hybrid covalently cross-linked polysiloxane that is dynamically dilatant based on boron-containing dynamic covalent bonds, the walls of which do not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of which contains a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of which has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of which contains a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of which has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of the component comprises hybrid dynamic crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of the component comprises hybrid dynamic crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of which comprises a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of which has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of which comprises a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of which has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy, and the cell wall has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy, and the cell wall has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, and the cell wall has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, and the cell wall has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell core of which has hybrid dynamic covalent cross-linked polysiloxane that is dynamic dilatant based on boron-containing dynamic covalent bonds, and the cell wall of which has dilatant properties; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the hybrid dynamic crosslinked thermoplastic polyurethane has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the hybrid dynamic crosslinked thermoplastic polyurethane has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy-absorbing component is a solid cell structure, the cell core of which has dynamic dilatancy and is a dynamically covalently crosslinked and/or non-crosslinked polymer, the cell wall of which has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cell structure, the cell core of which has dynamic dilatancy and is a dynamically covalently crosslinked and/or non-crosslinked polymer, the cell wall of which has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, and the cell wall has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, and the cell wall has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell core of which comprises a dynamic covalent and/or hybrid dynamic covalent cross-linked polysiloxane based on the dynamic dilatancy of a boron-containing dynamic covalent bond, the cell walls of which have dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the core of which has a dynamic covalent and/or hybrid dynamic covalent cross-linked polysiloxane that is dynamic dilatant based on boron-containing dynamic covalent bonds, the cell walls of which have dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the hybrid dynamic crosslinked thermoplastic polyurethane has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the hybrid dynamic crosslinked thermoplastic polyurethane has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell core of which has dynamic dilatancy and is a dynamically covalently crosslinked and/or non-crosslinked polymer, the cell walls of which have no dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell core of which has dynamic dilatancy and is a dynamically covalently crosslinked and/or non-crosslinked polymer, the cell walls of which have no dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall has no dilatancy and is selected from the combination of common covalent crosslinked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall has no dilatancy and is selected from the combination of common covalent crosslinked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains dynamic covalent and/or hybrid dynamic covalent cross-linked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic covalent and/or hybrid dynamic covalent cross-linked polysiloxane which is dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall of the cell has no dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent crosslinked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent crosslinked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy and is a hybrid covalent/supramolecular cross-linked polymer, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a hybrid covalent/supramolecular cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy and is a hybrid covalent/supramolecular cross-linked polymer, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a hybrid covalent/supramolecular cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is of a solid cell structure and contains hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from hybrid crosslinked polymers containing hybrid crosslinked polymers selected from hydrogen bonds, metal-ligands, ionic interaction crosslinking and common covalent crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is of a solid cell structure and contains hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from hybrid crosslinked polymers containing hybrid crosslinked polymers selected from hydrogen bonds, metal-ligands, ionic interaction crosslinking and common covalent crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component has hybrid dynamic covalent cross-linked polysiloxane with dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid cross-linked polymers containing hybrid cross-linked polymers selected from the group consisting of hydrogen bonds, metal-ligands, ionic interaction cross-links and common covalent cross-links, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component has a hybrid dynamic covalent crosslinking polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from hybrid crosslinking polymers including but not limited to hydrogen bonds, metal-ligands, ionic interaction crosslinking and common covalent crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component has a hybrid dynamic covalent crosslinking polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from hybrid crosslinking polymers including but not limited to hydrogen bonds, metal-ligands, ionic interaction crosslinking and common covalent crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from hybrid cross-linked polymers comprising hydrogen bonds, metal-ligands, ionic interaction cross-links and common covalent cross-links, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from hybrid cross-linked polymers comprising hydrogen bonds, metal-ligands, ionic interaction cross-links and common covalent cross-links, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component is a hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid crosslinked polymers containing hybrid crosslinked polymers selected from the group consisting of but not limited to hydrogen bonds, metal-ligands, ionic interaction crosslinks and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component is a hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid crosslinked polymers containing hybrid crosslinked polymers selected from the group consisting of but not limited to hydrogen bonds, metal-ligands, ionic interaction crosslinks and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is a hybrid dynamically crosslinked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid crosslinked polymers containing hybrid crosslinked polymers selected from the group consisting of but not limited to hydrogen bonds, metal-ligands, ionic interaction crosslinks and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is a hybrid dynamically crosslinked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid crosslinked polymers containing hybrid crosslinked polymers selected from the group consisting of but not limited to hydrogen bonds, metal-ligands, ionic interaction crosslinks and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component is a hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from hybrid cross-linked polymers containing hybrid cross-linked polymers selected from the group consisting of hydrogen bonds, metal-ligands, ionic interaction cross-links and common covalent cross-links, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component is a hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from hybrid cross-linked polymers containing hybrid cross-linked polymers selected from the group consisting of hydrogen bonds, metal-ligands, ionic interaction cross-links and common covalent cross-links, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy and is a hybrid dynamic covalent/supramolecular cross-linked polymer, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a hybrid dynamic covalent/supramolecular cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of adhesion of the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a hybrid dynamic covalent/supramolecular cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall has no dilatancy and is selected from hybrid cross-linked polymers containing a group including but not limited to hydrogen bonds, metal-ligands, ionic interaction cross-links and dynamic covalent cross-links, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall has no dilatancy and is selected from hybrid cross-linked polymers containing a group including but not limited to hydrogen bonds, metal-ligands, ionic interaction cross-links and dynamic covalent cross-links, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component is a solid cellular structure and contains hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid crosslinked polymers containing hybrid crosslinked polymers selected from the group consisting of but not limited to hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component has a hybrid dynamic covalent crosslinked polysiloxane with dynamic dilatancy based on boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid crosslinked polymers containing the elements selected from the group consisting of hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent crosslinks, the dilatancy energy-absorbing component has a hardness of 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected site is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component is a hybrid dynamic covalent crosslinked polyolefin with dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from hybrid crosslinked polymers containing dynamic covalent crosslinks including but not limited to hydrogen bonds, metal-ligands, ionic interactions crosslinks and dynamic covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component is a hybrid dynamic covalent crosslinked polyolefin with dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from hybrid crosslinked polymers containing dynamic covalent crosslinks including but not limited to hydrogen bonds, metal-ligands, ionic interactions crosslinks and dynamic covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component comprises a hybrid dynamically crosslinked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid crosslinked polymers comprising hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component comprises a hybrid dynamically crosslinked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid crosslinked polymers comprising hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component is a hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid crosslinked polymers containing hybrid crosslinked polymers selected from the group consisting of, but not limited to, hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component is a hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid crosslinked polymers containing hybrid crosslinked polymers selected from the group consisting of, but not limited to, hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component comprises a dynamic dilatancy hybrid dynamically crosslinked thermoplastic polyamide based on a boron-containing dynamic covalent bond, the cellular wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid crosslinked polymers comprising hydrogen bonds, metal-ligands, ionic interactions crosslinks and dynamic covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected site is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component comprises a dynamic dilatancy hybrid dynamically crosslinked thermoplastic polyamide based on a boron-containing dynamic covalent bond, the cellular wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid crosslinked polymers comprising hydrogen bonds, metal-ligands, ionic interactions crosslinks and dynamic covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected site is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of the dilatancy energy-absorbing component is of a solid cellular structure and comprises a dynamic dilatancy hybrid dynamic cross-linked thermoplastic polyester based on a dynamic boron-containing covalent bond, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid cross-linked polymers comprising hydrogen bonds, metal-ligands, ionic interaction cross-links and dynamic covalent cross-links, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of the dilatancy energy-absorbing component is of a solid cellular structure and comprises a dynamic dilatancy hybrid dynamic cross-linked thermoplastic polyester based on a dynamic boron-containing covalent bond, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid cross-linked polymers comprising hydrogen bonds, metal-ligands, ionic interaction cross-links and dynamic covalent cross-links, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy and is a hybrid common covalent/dynamic covalent/supramolecular cross-linked polymer, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a hybrid common covalent/dynamic covalent/supramolecular cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a hybrid common covalent/dynamic covalent/supramolecular cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall has no dilatancy and is selected from hybrid cross-linked polymers containing dynamic covalent and common covalent cross-links and selected from hydrogen bonds, metal-ligands, ionic interaction cross-links and dynamic covalent and common covalent cross-links, the dilatancy energy-absorbing component has a hardness of 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall has no dilatancy and is selected from hybrid cross-linked polymers containing dynamic covalent and common covalent cross-links and selected from hydrogen bonds, metal-ligands, ionic interaction cross-links and dynamic covalent and common covalent cross-links, the dilatancy energy-absorbing component has a hardness of 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is of a solid cell structure and contains hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from hybrid crosslinked polymers containing dynamic covalent and common covalent crosslinks and including but not limited to hydrogen bonds, metal-ligand, ionic interaction crosslinks, and dynamic covalent and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component has a hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component has no dilatancy and is selected from the group consisting of hybrid crosslinked polymers including but not limited to hydrogen bonds, metal-ligands, ionic crosslinks and dynamic covalent and common covalent crosslinks, the dilatancy energy-absorbing component has a hardness of 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected site is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component has a hybrid dynamic covalent crosslinking polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from hybrid crosslinking polymers containing dynamic covalent and common covalent crosslinks, including but not limited to hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component has a hybrid dynamic covalent crosslinking polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from hybrid crosslinking polymers containing dynamic covalent and common covalent crosslinks, including but not limited to hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is of a solid cell structure and contains hybrid dynamic crosslinked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid crosslinked polymers containing dynamic covalent and common covalent crosslinks and selected from the group consisting of hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is of a solid cell structure and contains hybrid dynamic crosslinked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid crosslinked polymers containing dynamic covalent and common covalent crosslinks and selected from the group consisting of hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component comprises hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid crosslinked polymers comprising hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component comprises hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid crosslinked polymers comprising hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is a hybrid dynamically crosslinked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid crosslinked polymers containing dynamic covalent and common covalent crosslinks, including but not limited to hydrogen bonds, metal-ligands, ionic interactions crosslinks, and dynamic covalent and common covalent crosslinks, the dilatancy energy-absorbing component has a hardness of 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected site is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is a hybrid dynamically crosslinked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid crosslinked polymers containing dynamic covalent and common covalent crosslinks, including but not limited to hydrogen bonds, metal-ligands, ionic interactions crosslinks, and dynamic covalent and common covalent crosslinks, the dilatancy energy-absorbing component has a hardness of 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected site is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is of a solid cell structure and comprises a hybrid dynamic crosslinked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the cell structure does not have dilatancy and is selected from hybrid crosslinked polymers comprising hydrogen bonds, metal-ligands, ionic interaction crosslinking and dynamic covalent and common covalent crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is of a solid cell structure and comprises a hybrid dynamic crosslinked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the cell structure does not have dilatancy and is selected from hybrid crosslinked polymers comprising hydrogen bonds, metal-ligands, ionic interaction crosslinking and dynamic covalent and common covalent crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy and is a dynamic covalent cross-linked polymer, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a dynamic covalent cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is dynamic covalent cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a dynamic covalent cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a dynamic covalent cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a dynamic covalent crosslinked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component is a hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a dynamic covalent crosslinked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is dynamic covalent cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is dynamic covalent cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is dynamic covalent crosslinked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is dynamic covalent crosslinked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a dynamic covalent crosslinked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a dynamic covalent crosslinked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is dynamic covalent crosslinked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of adhesion of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is dynamic covalent crosslinked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of adhesion of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is dynamic covalent cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is dynamic covalent cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy and is a hybrid common covalent/dynamic covalent/supramolecular cross-linked polymer, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a supramolecular cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a supermolecular cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall has no dilatancy and is selected from supermolecule cross-linked polymers containing hydrogen bonds, metal-ligands, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall has no dilatancy and is selected from supermolecule cross-linked polymers containing hydrogen bonds, metal-ligands, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from supermolecule crosslinked polymers including but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component has hybrid dynamic covalent crosslinked polysiloxane with dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from supermolecular crosslinked polymers containing the dynamic dilatancy based on boron-containing dynamic covalent bonds, the supermolecular crosslinked polymers include but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic covalent crosslinked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from supermolecule crosslinked polymers including but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic covalent crosslinked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from supermolecule crosslinked polymers including but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from supermolecule cross-linked polymers including but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from supermolecule cross-linked polymers including but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is a hybrid dynamic cross-linked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from supermolecule cross-linked polymers including but not limited to hydrogen bonds, metal-ligands, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is a hybrid dynamic cross-linked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from supermolecule cross-linked polymers including but not limited to hydrogen bonds, metal-ligands, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from supermolecule cross-linked polymers including but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from supermolecule cross-linked polymers including but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises dynamic dilatancy hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from supermolecule cross-linked polymers including but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises dynamic dilatancy hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from supermolecule cross-linked polymers including but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy and is a hybrid covalent/supramolecular cross-linked polymer, and the cell wall of the energy-absorbing component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy and is a hybrid covalent/supramolecular cross-linked polymer, and the cell wall of the energy-absorbing component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell core of which has hybrid dynamic covalent cross-linked polysiloxane that is dynamic dilatant based on boron-containing dynamic covalent bonds, and the cell wall of which has dilatant properties; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the hybrid dynamic crosslinked thermoplastic polyurethane has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the hybrid dynamic crosslinked thermoplastic polyurethane has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which have dynamic dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which have dynamic dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatancy energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which contain dynamic dilatancy based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which contain dynamic dilatancy based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polysiloxane based on the dynamic dilatancy of a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a hollow cell structure having a cell wall and/or cell core comprising a hybrid dynamic covalently cross-linked polysiloxane that is dynamic dilatant based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which comprise a hybrid dynamic covalently cross-linked polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which comprise a hybrid dynamic covalently cross-linked polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which comprise a hybrid dynamically crosslinked thermoplastic polyester based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which comprise a hybrid dynamically crosslinked thermoplastic polyester based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which contain dynamic dilatancy based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which contain dynamic dilatancy based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy-absorbing component is a hollow hybrid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polysiloxane based on the dynamic dilatancy of a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a hollow hybrid cellular structure having a cell wall and/or cell core comprising a hybrid dynamically covalently cross-linked polysiloxane that is dynamically dilatant based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy absorbing component is a hollow hybrid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a hollow hybrid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy absorbing component is a hollow hybrid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a hollow hybrid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy absorbing component is a hollow hybrid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a hollow hybrid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy absorbing component is a hollow hybrid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a hollow hybrid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive protector is a meniscus protector which uses a sleeve formed by elastic fabric as a fastener and contains a dilatant energy-absorbing component with a ring-like meniscus protection function, and the dilatant energy-absorbing component is hollowed out at the position of a knee; wherein the dilatant energy-absorbing component is a hollow hybrid cell structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyester based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace having a sleeve formed of an elastic fabric as a fastener, and having a dilatant energy absorbing component with a ring-like meniscus protection function, the dilatant energy absorbing component being not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow hybrid cell structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyester based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace, which contains an elastic fabric as a fastening element, and a plain cloth as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic fabric as the fastening element, an elastic fabric as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic fabric as a fastening element, a three-dimensional woven material as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy based on a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace, which contains an elastic fabric as a fastener, a 3D printed material as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy based on a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic fabric as a fastening element, an open-cell or semi-open-cell foam material as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic fabric as a fastening element, leather as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic fabric as the fastening element and a non-woven fabric as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace, which contains an elastic fabric as a fastener, a spring as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic fabric as a fastening element, a film as a shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic fabric as the fastening element, an elastic fabric as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic fabric as the fastening element, an elastic fabric as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyurethane based on dynamic dilatancy of a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic fabric as the fastening element, an elastic fabric as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyurethane based on dynamic dilatancy of a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic fabric as the fastening element, an elastic fabric as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic fabric as the fastening element, an elastic fabric as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic fabric as the fastening element, an elastic fabric as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising an elastic fabric as the fastening element, an elastic fabric as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace which comprises a fastener of at least two of elastic band, elastic fabric, other fabric, and fastener element, and a three-dimensional woven material as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cell structure with dynamic dilatancy in the cell walls and/or cell core; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace which comprises a fastener of at least two of elastic band, elastic fabric, other fabric, and fastener element, and a three-dimensional woven material as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatant energy-absorbing component is a solid cell structure with dynamic dilatancy in the cell walls and/or cell core; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace which comprises a fastener of at least two of elastic band, elastic fabric, other fabric, and fastener element, and a three-dimensional woven material as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cell structure having a cell wall and/or cell core with dynamic dilatancy based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace which comprises a fastener of at least two of elastic band, elastic fabric, other fabric, and fastener element, and a three-dimensional woven material as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatant energy-absorbing component is a solid cell structure having a cell wall and/or cell core with dynamic dilatancy based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace which comprises a fastener of at least two of elastic band, elastic fabric, other fabric, and fastener element, and a three-dimensional woven material as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polysiloxane based on the dynamic dilatancy of a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace which comprises a fastener of at least two of elastic band, elastic fabric, other fabric, and fastener element, and a three-dimensional woven material as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatant energy absorbing component is a solid cellular structure having a cell wall and/or cell core comprising a hybrid dynamic covalently cross-linked polysiloxane that is dynamic dilatant based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace which comprises a fastener of at least two of elastic band, elastic fabric, other fabric, and fastener element, and a three-dimensional woven material as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace which comprises a fastener of at least two of elastic band, elastic fabric, other fabric, and fastener element, and a three-dimensional woven material as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace which comprises a fastener of at least two of elastic band, elastic fabric, other fabric, and fastener element, and a three-dimensional woven material as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace which comprises a fastener of at least two of elastic band, elastic fabric, other fabric, and fastener element, and a three-dimensional woven material as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace which comprises a fastener of at least two of elastic band, elastic fabric, other fabric, and fastener element, and a three-dimensional woven material as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace which comprises a fastener of at least two of elastic band, elastic fabric, other fabric, and fastener element, and a three-dimensional woven material as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace which comprises a fastener of at least two of elastic band, elastic fabric, other fabric, and fastener element, and a three-dimensional woven material as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace which comprises a fastener of at least two of elastic band, elastic fabric, other fabric, and fastener element, and a three-dimensional woven material as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace which comprises a fastener of at least two of elastic band, elastic fabric, other fabric, and fastener element, and a three-dimensional woven material as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyester based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace which comprises a fastener of at least two of elastic band, elastic fabric, other fabric, and fastener element, and a three-dimensional woven material as the shaping element; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyester based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising as fasteners at least two combinations of stretch band, stretch fabric, other fabric, catch element, as shaping elements at least two combinations of cloth, stretch fabric, other fabric, three-dimensional woven material, 3D printed material, open or semi-open cell foam, leather (natural/artificial), non-woven fabric, springs, films; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy, and the cell wall has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising as fasteners at least two combinations of stretch band, stretch fabric, other fabric, catch element, as shaping elements at least two combinations of cloth, stretch fabric, other fabric, three-dimensional woven material, 3D printed material, open or semi-open cell foam, leather (natural/artificial), non-woven fabric, springs, films; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy, and the cell wall has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising as fasteners at least two combinations of stretch band, stretch fabric, other fabric, catch element, as shaping elements at least two combinations of cloth, stretch fabric, other fabric, three-dimensional woven material, 3D printed material, open or semi-open cell foam, leather (natural/artificial), non-woven fabric, springs, films; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, and the cell wall has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising as fasteners at least two combinations of stretch band, stretch fabric, other fabric, catch element, as shaping elements at least two combinations of cloth, stretch fabric, other fabric, three-dimensional woven material, 3D printed material, open or semi-open cell foam, leather (natural/artificial), non-woven fabric, springs, films; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, and the cell wall has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising as fasteners at least two combinations of stretch band, stretch fabric, other fabric, catch element, as shaping elements at least two combinations of cloth, stretch fabric, other fabric, three-dimensional woven material, 3D printed material, open or semi-open cell foam, leather (natural/artificial), non-woven fabric, springs, films; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell core of which comprises a dynamic covalent and/or hybrid dynamic covalent cross-linked polysiloxane based on the dynamic dilatancy of a boron-containing dynamic covalent bond, the cell walls of which have no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising as fasteners at least two combinations of stretch band, stretch fabric, other fabric, catch element, as shaping elements at least two combinations of cloth, stretch fabric, other fabric, three-dimensional woven material, 3D printed material, open or semi-open cell foam, leather (natural/artificial), non-woven fabric, springs, films; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatant energy-absorbing component is a solid cellular structure having a core of dynamically covalently and/or hybrid covalently cross-linked polysiloxane that is dynamically dilatant based on boron-containing dynamic covalent bonds, the walls of which do not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising as fasteners at least two combinations of stretch band, stretch fabric, other fabric, catch element, as shaping elements at least two combinations of cloth, stretch fabric, other fabric, three-dimensional woven material, 3D printed material, open or semi-open cell foam, leather (natural/artificial), non-woven fabric, springs, films; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising as fasteners at least two combinations of stretch band, stretch fabric, other fabric, catch element, as shaping elements at least two combinations of cloth, stretch fabric, other fabric, three-dimensional woven material, 3D printed material, open or semi-open cell foam, leather (natural/artificial), non-woven fabric, springs, films; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising as fasteners at least two combinations of stretch band, stretch fabric, other fabric, catch element, as shaping elements at least two combinations of cloth, stretch fabric, other fabric, three-dimensional woven material, 3D printed material, open or semi-open cell foam, leather (natural/artificial), non-woven fabric, springs, films; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of which contains a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of which has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising as fasteners at least two combinations of stretch band, stretch fabric, other fabric, catch element, as shaping elements at least two combinations of cloth, stretch fabric, other fabric, three-dimensional woven material, 3D printed material, open or semi-open cell foam, leather (natural/artificial), non-woven fabric, springs, films; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of which contains a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of which has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising as fasteners at least two combinations of stretch band, stretch fabric, other fabric, catch element, as shaping elements at least two combinations of cloth, stretch fabric, other fabric, three-dimensional woven material, 3D printed material, open or semi-open cell foam, leather (natural/artificial), non-woven fabric, springs, films; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of the component comprises hybrid dynamic crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising as fasteners at least two combinations of stretch band, stretch fabric, other fabric, catch element, as shaping elements at least two combinations of cloth, stretch fabric, other fabric, three-dimensional woven material, 3D printed material, open or semi-open cell foam, leather (natural/artificial), non-woven fabric, springs, films; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of the component comprises hybrid dynamic crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising as fasteners at least two combinations of stretch band, stretch fabric, other fabric, catch element, as shaping elements at least two combinations of cloth, stretch fabric, other fabric, three-dimensional woven material, 3D printed material, open or semi-open cell foam, leather (natural/artificial), non-woven fabric, springs, films; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of which comprises a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of which has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising as fasteners at least two combinations of stretch band, stretch fabric, other fabric, catch element, as shaping elements at least two combinations of cloth, stretch fabric, other fabric, three-dimensional woven material, 3D printed material, open or semi-open cell foam, leather (natural/artificial), non-woven fabric, springs, films; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of which comprises a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of which has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising as fasteners at least two combinations of stretch band, stretch fabric, other fabric, catch element, as shaping elements at least two combinations of cloth, stretch fabric, other fabric, three-dimensional woven material, 3D printed material, open or semi-open cell foam, leather (natural/artificial), non-woven fabric, springs, films; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is a meniscus brace comprising as fasteners at least two combinations of stretch band, stretch fabric, other fabric, catch element, as shaping elements at least two combinations of cloth, stretch fabric, other fabric, three-dimensional woven material, 3D printed material, open or semi-open cell foam, leather (natural/artificial), non-woven fabric, springs, films; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.

In the meniscus protector, the dilatant energy absorption assembly in the meniscus protector is completely hollowed at the knee position, which is most beneficial to the movement of the knee, and the knee can be protected from being impacted to a certain extent due to the incomplete hollowing of the knee position. It is also preferred to have other three-dimensional geometries to reduce apparent density and improve energy absorption, preferably an inside-out corner type structure, more preferably an inside-out corner type structure with a negative poisson's ratio, and most preferably an inside-out corner type structure with an octopus-like sucker structure. Preferably the dilatant energy absorbing component for the meniscus has a stiffness of no more than 15A or 30C; preferably, the apparent density is not more than 1.2g/mL, more preferably, the apparent density is not more than 0.5 g/mL; preferably, the hybrid network structure is a dynamic covalent/non-covalent hybrid network structure with recoverable/self-repairing functionality.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow brace having a sleeve of elastic fabric as a fastener, the elbow location of which is attached to a plurality of individual dilatant energy absorber module nubs; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow guard which uses a sleeve formed by elastic fabric as a fastener, and a plurality of independent dilatant energy-absorbing assembly small blocks are attached to the elbow position, wherein the dilatant energy-absorbing assembly small blocks have a pure solid structure; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow guard which uses a sleeve formed by elastic fabric as a fastener, and a plurality of independent dilatant energy-absorbing assembly small blocks are attached to the elbow position, wherein the dilatant energy-absorbing assembly small blocks have a simple hollow structure; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow brace having a sleeve of elastic fabric as a fastener and a plurality of individual dilatant energy absorbing member nubs attached to the elbow location, the dilatant energy absorbing member nubs having a solid cell structure; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow brace having a sleeve of elastic fabric as a fastener and a plurality of individual dilatant energy absorbing module nubs attached to the elbow location, the dilatant energy absorbing module nubs having a hollow cell structure; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow brace having a sleeve of elastic fabric as a fastener and a plurality of individual dilatant energy absorbing element nubs attached to the elbow location, the dilatant energy absorbing element nubs having a hollow cell structure; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow guard which takes a sleeve formed by elastic fabric as a fastener, and a plurality of independent dilatant energy-absorbing assembly small blocks are attached to the elbow position, wherein the dilatant energy-absorbing assembly small blocks have a pure solid structure and an inward concave angle type three-dimensional geometrical structure; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow guard which takes a sleeve formed by elastic fabric as a fastener, and a plurality of independent dilatant energy-absorbing assembly small blocks are attached to the elbow position, wherein the dilatant energy-absorbing assembly small blocks have a simple hollow structure and an inward concave angle type three-dimensional geometrical structure; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow guard which uses a sleeve formed by elastic fabric as a fastener, and a plurality of independent dilatant energy-absorbing assembly small blocks are attached to the elbow position, wherein the dilatant energy-absorbing assembly small blocks have a solid cell structure and an inward concave angle type three-dimensional geometrical structure; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow guard which uses a sleeve formed by elastic fabric as a fastener, and a plurality of independent dilatant energy-absorbing assembly small blocks are attached to the elbow position, wherein the dilatant energy-absorbing assembly small blocks have a hollow cell structure and an inward concave angle type three-dimensional geometrical structure; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow guard which uses a sleeve formed of an elastic fabric as a fastener, and a plurality of independent dilatant energy-absorbing assembly small blocks are attached to the elbow positions of the flexible adaptive brace, wherein each dilatant energy-absorbing assembly small block has a hollow cell structure and an inward concave angle type three-dimensional geometrical structure; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow brace having a sleeve of elastic fabric as a fastener and a plurality of discrete dilatant energy absorber module nubs attached to the elbow location, the dilatant energy absorber module nubs having dynamic dilatant properties and optionally vitrified dilatant, tangled dilatant properties; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow guard, which uses a sleeve made of elastic fabric as a fastener, and a plurality of independent dilatant energy-absorbing assembly small blocks are attached to the elbow position, wherein the dilatant energy-absorbing assembly small blocks have a pure solid structure and have dynamic dilatancy and optional vitrification dilatancy and entanglement dilatancy; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow guard which uses a sleeve formed by elastic fabric as a fastener, and a plurality of independent dilatant energy-absorbing assembly small blocks are attached to the elbow position, wherein the dilatant energy-absorbing assembly small blocks have a simple hollow structure and have dynamic dilatancy and optional vitrification dilatancy and entanglement dilatancy; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow brace having a sleeve of elastic fabric as a fastener and a plurality of individual dilatant energy-absorbing assembly nubs attached to the elbow location, the dilatant energy-absorbing assembly nubs having a solid cell structure, the dilatant energy-absorbing assembly nubs having dynamic dilatancy and optionally glassy dilatancy, tangled dilatancy; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow brace having a sleeve of elastic fabric as a fastener and a plurality of individual dilatant energy-absorbing assembly nubs attached to the elbow location, the dilatant energy-absorbing assembly nubs having a hollow cell structure, the dilatant energy-absorbing assembly nubs having dynamic dilatancy and optionally glassy dilatancy, tangled dilatancy; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow brace having an elastic fabric sleeve as a fastener and a plurality of individual dilatant energy-absorbing assembly pieces attached to the elbow location, the dilatant energy-absorbing assembly pieces having a polymer matrix with dynamic dilatant properties and optionally vitrified dilatant, entanglement dilatant properties; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow brace, which uses a sleeve made of elastic fabric as a fastener, and a plurality of independent dilatant energy-absorbing assembly small blocks are attached to the elbow position, wherein the dilatant energy-absorbing assembly small blocks have a pure solid structure, and polymer matrixes of the dilatant energy-absorbing assembly small blocks have dynamic dilatancy and optional vitrification dilatancy and entanglement dilatancy; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow brace, which uses a sleeve made of elastic fabric as a fastener, and a plurality of independent dilatant energy-absorbing assembly small blocks are attached to the elbow position, wherein the dilatant energy-absorbing assembly small blocks have a simple hollow structure, and polymer matrixes of the dilatant energy-absorbing assembly small blocks have dynamic dilatancy and optional vitrification dilatancy and entanglement dilatancy; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow brace having a sleeve of elastic fabric as a fastener and a plurality of individual dilatant energy-absorbing assembly nubs attached to the elbow location, the dilatant energy-absorbing assembly nubs having a solid cell structure, the dilatant energy-absorbing assembly nubs having a polymer matrix with dynamic dilatancy and optionally a glass dilatancy, entanglement dilatancy; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow brace having a sleeve of elastic fabric as a fastener and a plurality of individual dilatant energy-absorbing module nubs attached to the elbow location, the dilatant energy-absorbing module nubs having a hollow cell structure, the dilatant energy-absorbing module nubs having a polymer matrix with dynamic dilatancy and optionally a glass dilatancy, entanglement dilatancy; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow brace having a sleeve of elastic fabric as a fastener and a plurality of individual dilatant energy-absorbing assembly segments attached to the elbow, the dilatant energy-absorbing assembly segments having a hollow cell structure, the dilatant energy-absorbing assembly segments having a polymer matrix with dynamic dilatancy and optionally glassy dilatancy and tangled dilatancy; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow brace, the elbow brace is provided with a sleeve made of elastic fabric as a fastener, the elbow position of the sleeve is attached with a plurality of independent dilatant energy-absorbing assembly small blocks, the dilatant energy-absorbing assembly small blocks are provided with solid cell structures, the cell walls of the dilatant energy-absorbing assembly small blocks are provided with dilatancy, and the cell cores are not provided with dilatancy; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow guard, which uses a sleeve made of elastic fabric as a fastener, and a plurality of independent dilatant energy-absorbing assembly small blocks are attached to the elbow positions of the flexible adaptive brace, the dilatant energy-absorbing assembly small blocks have a hollow cell structure, the walls of the cells of the dilatant energy-absorbing assembly small blocks have dilatancy, and the cells of the cells have no dilatancy; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow brace, the elbow brace is provided with a sleeve made of elastic fabric as a fastener, the elbow position of the sleeve is attached with a plurality of independent dilatant energy-absorbing assembly small blocks, the dilatant energy-absorbing assembly small blocks are of a hollow cell structure, the cell walls of the dilatant energy-absorbing assembly small blocks have dilatancy, and the cell cores of the dilatant energy-absorbing assembly small blocks do not have dilatancy; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow brace, the elbow brace is provided with a sleeve made of elastic fabric as a fastener, the elbow position of the sleeve is attached with a plurality of independent dilatant energy-absorbing assembly small blocks, the dilatant energy-absorbing assembly small blocks are provided with solid cell structures, the cell walls of the dilatant energy-absorbing assembly small blocks are not dilatant, and the cell cores are provided with dilatant properties; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow guard, wherein a sleeve made of elastic fabric is used as a fastener, the elbow position of the sleeve is attached with a plurality of independent dilatant energy-absorbing assembly small blocks, the dilatant energy-absorbing assembly small blocks have a hollow cell structure, the cell walls of the dilatant energy-absorbing assembly small blocks do not have dilatancy, and the cell cores have dilatancy; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow brace, the elbow brace is provided with a sleeve made of elastic fabric as a fastener, the elbow position of the sleeve is attached with a plurality of independent dilatant energy-absorbing assembly small blocks, the dilatant energy-absorbing assembly small blocks are of a hollow cell structure, the cell walls of the dilatant energy-absorbing assembly small blocks do not have dilatancy, and the cell cores have dilatancy; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow guard, wherein a sleeve made of elastic fabric is used as a fastener, the elbow position of the sleeve is attached with a plurality of independent dilatant energy-absorbing assembly small blocks, the dilatant energy-absorbing assembly small blocks have a solid cell structure, the cell walls of the dilatant energy-absorbing assembly small blocks have dilatancy, and the cell cores have dilatancy; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow guard which uses a sleeve formed by elastic fabric as a fastener, and a plurality of independent dilatant energy-absorbing assembly small blocks are attached to the elbow positions of the flexible adaptive brace, the dilatant energy-absorbing assembly small blocks have a hollow cell structure, the walls of the cells of the dilatant energy-absorbing assembly small blocks have dilatancy, and the cells of the cells have dilatancy; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible adaptive brace is an elbow guard, which uses a sleeve made of elastic fabric as a fastener, and a plurality of independent dilatant energy-absorbing assembly small blocks are attached to the elbow positions of the flexible adaptive brace, the dilatant energy-absorbing assembly small blocks have a hollow cell structure, the cell walls of the dilatant energy-absorbing assembly small blocks have dilatancy, and the cell cores of the energy-absorbing assembly small blocks have dilatancy; it may optionally contain other accessories as well.

According to a preferred embodiment of the invention, the flexible elbow support, the dynamic polymer or composition of the dilatant energy absorbing component thereof, is preferably selected from the group comprising, but not limited to, dynamic dilatant polymers based on boron-containing dynamic covalent bonds, monodentate hydrogen bonding, bidentate hydrogen bonding, monodentate metal-ligand bonding, ionic clustering, ion-dipole bonding, host-guest bonding, lewis acid-base pairing, ionic hydrogen bonding. It is also preferred to have other three-dimensional geometries to reduce apparent density and improve energy absorption, preferably an inside-out corner type structure, more preferably an inside-out corner type structure with a negative poisson's ratio, and most preferably an inside-out corner type structure with an octopus-like sucker structure. Preferably the dilatant energy absorbing component for elbow rest has a stiffness of no more than 15A or 30C; preferably, the apparent density is not more than 0.5g/mL, more preferably, the apparent density is not more than 0.3 g/mL; preferably a heteronetwork structure, more preferably a dynamic covalent/non-covalent heteronetwork structure with recoverable/self-healing functionality; preference is given to dynamic dilatant polymers based on thermoplastic polyurethanes (polyureas), thermoplastic polyamides, thermoplastic polyolefins, thermoplastic polyesters.

According to a preferred embodiment of the invention, in the flexible adaptive brace, the dilatant component contained in the cell core and/or cell walls of the dilatant energy absorbing component is a non-crosslinked dynamic polymer.

According to a preferred embodiment of the invention, in the flexible adaptive brace, the dilatant component contained in the cell core and/or cell walls of the dilatant energy absorbing component is a non-crosslinked dynamic supramolecular polymer.

According to a preferred embodiment of the invention, in the flexible adaptive brace, the dilatant component contained in the core and/or cell walls of the dilatant energy absorbing component is a non-crosslinked dynamic covalent polymer.

According to a preferred embodiment of the invention, in the flexible adaptive brace, the dilatant component contained in the cell core and/or cell walls of the dilatant energy absorbing component is a non-crosslinked dynamic hybrid covalent/supramolecular polymer.

According to a preferred embodiment of the invention, in the flexible adaptive brace, the dilatant component contained in the cell core and/or cell walls of the dilatant energy absorbing component is a mixture of a non-crosslinked dynamic covalent polymer and a dynamic supramolecular polymer.

According to a preferred embodiment of the invention, in the flexible adaptive brace, the dilatant component contained in the cell core and/or cell walls of the dilatant energy absorbing component is a mixture of a non-crosslinked dynamic covalent polymer and a dynamic supramolecular polymer and a dynamic hybrid covalent/supramolecular polymer.

In the invention, the dilatant energy absorbing component can be prepared from dilatant polymer or composition and optional auxiliary agents and optional fillers and supports by means of die pressing, injection molding, casting, foaming, laminating, 3D printing, extruding, casting, dipping, coating and the like.

In the present invention, the support used in the dilatant energy absorbing assembly includes, but is not limited to, fabrics for surface or interior use, three-dimensional woven materials, 3D printed materials, open or semi-open cell foams, leather (natural/artificial), nonwovens, threads, springs, tubes, plates, strips, films (including hollow-outs), fibers (mainly long fibers), natural three-dimensional materials. The energy absorbing assembly can have dilatancy or no dilatancy, and can be made of metal materials, inorganic non-metal materials, high polymer materials and composite materials, and the requirements of flexibility and low hardness of the dilatancy energy absorbing assembly are not influenced. The polymer film is preferably used as a bag or a bag-shaped accessory to be compounded on the outer part of the dilatant energy-absorbing assembly, and the purposes of providing support, increasing mechanical property/durability and the like are achieved. Preferably, the polymeric film is a thermoplastic elastomer, such as thermoplastic polyurethane, thermoplastic polyamide, thermoplastic polyester, thermoplastic polyolefin, thermoplastic polyacrylate, and the like. The high polymer film is preferably compounded on the dilatant energy-absorbing component by adopting the modes of hot pressing, coating, dip coating, spray coating and the like.

In the invention, the dilatant support, including the other accessories combined with the dilatant energy absorbing component into the protector or just the accessories of the dilatant energy absorbing component itself, can be prepared by processing methods such as die pressing, extrusion, 3D printing, cutting, stamping, spraying, dip coating, coating and the like.

In the present invention, the molding method generally comprises premixing a dilatant polymer matrix (e.g. intrinsic dilatant polymer pellets, polymer blank containing hollow microspheres/expandable particles/independent bag-shaped particle structure) with optional additives and optional fillers, filling the premixed material into a suitable closed mold cavity, closing the mold, and forming into a dilatant energy-absorbing component product with a certain size by heating and pressurizing. The method is suitable for thermoplastic/thermosetting polymer matrixes and is suitable for preparing dilatancy energy-absorbing components with simple solid structures, simple hollow structures and cellular structures.

In the present invention, the injection molding method generally comprises premixing a dilatant polymer matrix (e.g., intrinsic dilatant polymer pellets, polymer pellets containing hollow microspheres/expandable particles) with optional additives and optional fillers, stirring the completely molten material by a screw at a certain temperature, injecting the completely molten material into a mold cavity with a certain shape by high pressure, and cooling and solidifying to obtain the dilatant energy-absorbing component product. The method is suitable for batch production of parts with complex shapes, is suitable for thermoplastic polymer matrixes, and is used for preparing dilatancy energy-absorbing components with pure solid structures and pure hollow structures.

In the present invention, the casting method generally comprises the steps of premixing and melting a dilatant polymer matrix (such as an intrinsic dilatant polymer material, a polymer material containing a hollow microsphere/foamable particle structure) with optional additives and optional fillers, injecting the melted material or the mixture thereof into a mold cavity with a certain shape under the condition of no pressurization or slight pressurization, keeping the temperature for a period of time, cooling and opening the mold to obtain the dilatant energy-absorbing component product. The method is suitable for thermoplastic/thermosetting polymer matrixes and is suitable for preparing dilatancy energy-absorbing components with pure solid structures and pure hollow structures.

In the present invention, the foaming method generally comprises premixing a dilatant polymer matrix (e.g. intrinsic dilatant polymer granules, polymer blank containing hollow microspheres/expandable particles/independent bag-shaped particle structure) with a foaming agent, and optionally other additives and optionally fillers, foaming the polymer matrix by using a mechanical foaming method, a physical foaming method and a chemical foaming method, and then forming the foam material by using a die-pressing foaming method, an injection foaming method and an extrusion foaming method to obtain the dilatant energy-absorbing component foam product. The method is suitable for thermoplastic/thermosetting polymer matrix and is suitable for preparing dilatant energy-absorbing components with simple hollow structures and cellular structures.

The mechanical foaming method is generally to introduce a large amount of air or other gas into an emulsion, suspension or solution of a polymer by strong stirring during the preparation of a foam material to form a uniform foam, and then to form the foam material by physical or chemical change. Air can be introduced and an emulsifier or surfactant can be added to shorten the molding cycle.

The physical foaming method generally utilizes physical principles to realize foaming of the polymer in the preparation process of the foam material, and includes, but is not limited to, the following methods: (1) inert gas foaming, i.e. by pressing inert gas into molten polymer or pasty material under pressure, then raising the temperature under reduced pressure to expand the dissolved gas and foam; (2) evaporating, gasifying and foaming low-boiling-point liquid, namely pressing the low-boiling-point liquid into the polymer or dissolving the liquid into the polymer (particles) under certain pressure and temperature conditions, heating and softening the polymer, and evaporating and gasifying the liquid to foam; (3) dissolving out method, i.e. soaking liquid medium into polymer to dissolve out solid matter added in advance to make polymer have lots of pores and be foamed, for example, mixing soluble matter salt with polymer, etc. first, after forming into product, placing the product in water to make repeated treatment, dissolving out soluble matter to obtain open-cell foamed product; (4) the hollow/foaming microsphere method is that hollow microspheres are added into the material and then compounded to form closed-cell foamed polymer; (5) a filling foamable particle method of mixing filled foamable particles first and then foaming the foamable particles in a molding or mixing process to obtain a foamed polymer material; (6) freeze-drying, i.e. swelling the polymer in a volatile solvent to freeze it and then releasing the solvent in the form of sublimation under near vacuum conditions, thus obtaining a porous sponge-like foam; (7) the supercritical foaming method is that carbon dioxide or nitrogen and other gases are injected into a special reaction device, the gases reach a supercritical state under certain pressure and temperature conditions, and are fully and uniformly mixed with a polymer matrix, then the pressure is relieved, or the sol is led into a die cavity or an extrusion die to generate large pressure drop, so that the gases are separated out to form a large number of bubble cores, and then the foam product is obtained by cooling and molding.

The chemical foaming method is a method of foaming a polymer by generating a gas accompanied by a chemical reaction during foaming of the polymer, and includes, but is not limited to, the following methods: (1) the thermal decomposition type foaming method is a method of foaming by using a gas released by decomposition of a chemical foaming agent after heating. (2) The foaming process in which the polymer components interact to produce a gas utilizes a chemical reaction between two or more of the components in the foaming system to produce an inert gas (e.g., carbon dioxide or nitrogen) to cause the polymer to expand and foam.

In the present invention, the lamination processing method preferably comprises premixing a dilatant polymer matrix (e.g. an intrinsic dilatant polymer billet, a polymer billet containing hollow microspheres/expandable particles/independent bag-shaped particle structure) with optional additives and optional fillers by using an internal mixer and an open mill, filling the premixed different sheet/block billets into a suitable mold cavity in a lamination manner, and forming the dilatant energy-absorbing assembly product with a certain size by using heating, pressurizing or bonding by using an adhesive. The method is suitable for thermoplastic polymer matrixes and is suitable for preparing the layered dilatancy energy-absorbing component with a pure solid structure, a pure hollow structure and a cellular structure.

In the present invention, the 3D printing method includes, but is not limited to, extrusion Fused Deposition (FDM), electron beam free form fabrication (EBF), electron beam melt molding (EBM), selective laser melt molding (SLM), Selective Heat Sintering (SHS), Selective Laser Sintering (SLS), Layered Object Manufacturing (LOM), Digital Light Processing (DLP), and X-method (Xolography) 3D printing technologies. Preferably, the dilatant polymer matrix (e.g. an intrinsically dilatant polymer pellet) is premixed with optional adjuvants and optional fillers using an extruder, the premix is extruded and drawn using an extruder and used for 3D printing, and the appropriate melt temperature is controlled and maintained for a period of time at that temperature for ejection through the nozzle of a printer. The invention also preferably applies liquid printing or melt printing and cross-linking molding or powder laser sintering, etc., especially multi-material printing, by monomers or macromonomers of the polymer matrix. After printing, better interlayer bonding force and better mechanical property can be obtained through further crosslinking or dynamic exchange reaction. The 3D method is very suitable for thermoplastic polymer matrixes or dynamic covalent polymer matrixes and photocured and crosslinked matrixes, is particularly suitable for preparing various dilatancy energy-absorbing assembly structures which cannot be prepared by other methods, and has special advantages.

In the invention, the modes of extrusion, casting, dipping, coating and the like are common methods in material processing. In the present invention, after molding, injection molding, casting, foaming, laminating, 3D printing, extrusion, casting, dipping, coating, etc., further crosslinking, foaming, laminating, molding, 3D printing, extrusion, casting, dipping, coating, etc., may be performed. In the present invention, fibers (including natural and synthetic, semisynthetic), fabrics (including three-dimensional fabrics), frames (flexible including natural and synthetic, semisynthetic), films, surface coatings, skins, etc. can be directly incorporated into or on the dilatant energy-absorbing component, typically during processing, to impart, increase tear resistance, increase tensile strength, increase impact resistance, increase energy absorption (impact protection, shock absorption, cushioning, damping, etc.), increase abrasion resistance, improve surface feel, improve surface sweat absorption, improve surface breathability, etc. Optional fibers include, but are not limited to, cotton, polyester, nylon, polyurethane (spandex/lycra), acrylic, polyester, electrospun, aramid, ultra high molecular weight polyethylene, natural silk, flax, graphite; the selectable fabrics comprise cotton cloth, terylene, spandex, acrylon, chinlon (nylon), microfiber, non-woven fabrics, artificial leather, natural silk fabrics, rubber fabrics, flax, aramid fibers, ultra-high molecular weight polyethylene fiber fabrics and various three-dimensional woven fabrics; optional frames such as loofah sponge, various open-cell foamed polymers, various 3D printing frames, and the like. Various films, hollow-out films, sponges, hollow-out sponges and various coatings can also be selected, including but not limited to polyurethane films, plasticized PVC films, thermoplastic polyurethane films, thermoplastic polyester films, thermoplastic polyamide films, hollow-out structures and foamed structures thereof.

According to a preferred embodiment of the invention, the flexible adaptive brace, wherein the dilatant energy absorbing component comprises at least one of a fabric, and a frame; the dilatancy energy-absorbing component of a pure hollow, hollow cell structure or an empty-impurity cell structure preferably contains at least one of fiber, fabric and frame inside; more preferably, the dilatancy energy-absorbing component of a simple hollow, hollow cell structure or hollow-hetero cell structure based on at least one of dynamic dilatancy and vitrification dilatancy mechanisms contains at least one of fiber, fabric and frame; further preferably, the matrix is a polymer (composition) with at least one of intrinsic dynamic dilatancy and vitrifying dilatancy mechanisms, and the dilatancy energy-absorbing component of a simple hollow, hollow cell structure and hollow-hetero cell structure contains at least one of fibers, fabrics and frames. Depending on the number and strength of the fibers, fabrics, frames, etc. contained inside, the tensile strength can be improved by at least 20% and even up to 500%; the shock resistance and the protective performance of the material are improved by 15 percent and even up to 300 percent.

According to a preferred embodiment of the invention, the flexible adaptive brace wherein the dilatant energy absorbing component surface/skin comprises at least one of a fiber, fabric, frame, coating, skin; preferably, the surface/surface layer of the dilatancy energy-absorbing component with a simple hollow structure, a hollow cell structure, a hollow-miscellaneous cell structure, a simple solid cell structure and an external three-dimensional geometrical structure and an internal concave angle structure contains at least one of fiber, fabric, a frame, a coating and a skin layer; more preferably, the surface/surface layer of the dilatancy energy-absorbing component with an internal concave angle structure based on at least one of dynamic dilatancy and vitrification dilatancy mechanisms comprises at least one of fibers, fabrics, frames, coatings and skins, wherein the surface/surface layer of the dilatancy energy-absorbing component is of a simple hollow, hollow cell structure, hollow-hybrid cell structure, simple solid cell structure and external three-dimensional geometrical structure; further preferably, the matrix is a polymer (composition) with at least one of intrinsic dynamic dilatancy and vitrifying dilatancy mechanisms, and the dilatancy energy-absorbing component with an external three-dimensional geometrical structure is internally provided with at least one of fibers, fabrics, frames, coatings and skins. Depending on the number and strength of the fibers, fabrics, frames, coatings, skins, etc. contained in the surface/skin layer, the tensile strength can be increased by at least 25%, even as high as 600%; the tear resistance is improved by 50 percent or even 400 percent; the shock resistance and the protective performance of the material are improved by 20 percent and even up to 400 percent.

According to a preferred embodiment of the invention, the flexible adaptive brace wherein the dilatant energy absorbing component comprises at least one of a fiber, a fabric, a frame inside and a surface/skin layer comprising at least one of a fiber, a fabric, a frame, a coating, a skin layer; preferably, the dilatancy energy absorption component with a pure hollow structure, a hollow cell structure, a hollow and foreign cell structure, a pure solid cell structure and an external three-dimensional geometrical structure and an internal concave angle structure contains at least one of fibers, fabrics and frames inside and at least one of fibers, fabrics, frames, coatings and skins on the surface/surface layer; more preferably, the dilatancy energy-absorbing component based on at least one of dynamic dilatancy and vitrifying dilatancy mechanisms is characterized in that the dilatancy energy-absorbing component has at least one of a simple hollow structure, a hollow cell structure, a hollow-cell structure, a simple solid cell structure and an external three-dimensional geometrical configuration with an internal concave angle structure, and contains at least one of fibers, fabrics and frames inside and at least one of fibers, fabrics, frames, coatings and skins on the surface/surface layer; it is further preferable that the matrix is a polymer (composition) with at least one of intrinsic dynamic dilatancy and vitrifying dilatancy mechanisms, and the dilatancy energy-absorbing component has at least one of a hollow structure, a hollow cell structure, a hollow-hybrid cell structure, a solid cell structure, an external three-dimensional geometrical configuration with an internal concave angle structure, and contains at least one of fibers, fabrics and frames inside and at least one of fibers, fabrics, frames, coatings and skins on the surface/surface layer. The tensile strength can be improved by at least 30 percent and even up to 800 percent depending on the number, strength and the like of fibers, fabrics, frames, and surface/skin layers contained in the inner part; the tear resistance is improved by 80 percent or even 500 percent; the shock resistance and the protective performance of the material are improved by 40 percent and even up to 500 percent.

In the invention, the optional auxiliary agent can improve the material preparation process, improve the product quality and yield, reduce the product cost or endow the product with certain specific application performance. The other auxiliary agents are selected from any one or more of the following components: auxiliary agents for synthesis, including catalysts; stabilizing aids including antioxidants, light stabilizers, heat stabilizers; the auxiliary agent for improving the mechanical property comprises a cross-linking agent, a curing agent, a toughening agent and a chain extender; the processing performance improving additives comprise a lubricant and a release agent; the auxiliary agents for softening and lightening comprise a plasticizer and a foaming agent; dynamic modifiers that modulate dynamic covalent bonds, supramolecular interactions; surface property modifying additives, including antistatic agents; the color light changing auxiliary agent comprises a coloring agent, a fluorescent whitening agent and a delustering agent; flame retardant and smoke suppressant additives, including flame retardants.

Wherein, the optional antioxidant can delay the oxidation process of the product, ensure that the material can be smoothly prepared and processed and prolong the service life of the product, and comprises but is not limited to any one or more of the following antioxidants: hindered phenols such as 2, 6-di-t-butyl-4-methylphenol, 1, 3-tris (2-methyl-4-hydroxy-5-t-butylphenyl) butane, pentaerythrityl tetrakis [ beta- (3, 5-di-t-butyl-4-hydroxyphenyl) propionate ], 2' -methylenebis (4-methyl-6-t-butylphenol); sulfur-containing hindered phenols such as 4,4 '-thiobis- [ 3-methyl-6-t-butylphenol ], 2' -thiobis- [ 4-methyl-6-t-butylphenol ]; triazine-based hindered phenols such as 1,3, 5-bis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl ] -hexahydro-s-triazine; blocked phenols of the trimeric isocyanates, such as tris (3, 5-di-tert-butyl-4-hydroxybenzyl) -triisocyanate; amines, such as N, N ' -di (β -naphthyl) p-phenylenediamine, N ' -diphenyl-p-phenylenediamine, N-phenyl-N ' -cyclohexyl-p-phenylenediamine; sulfur-containing species such as dilauryl thiodipropionate, 2-mercaptobenzimidazole, 2-mercaptobenzothiazole; phosphites such as triphenyl phosphite, trisnonylphenyl phosphite, tris [ 2.4-di-t-butylphenyl ] phosphite and the like; among them, preferred as the antioxidant are Tea Polyphenol (TP), Butyl Hydroxyanisole (BHA), dibutylhydroxytoluene (BHT), t-butylhydroquinone (TBHQ), tris [2, 4-di-t-butylphenyl ] phosphite (antioxidant 168), and tetrakis [ beta- (3, 5-di-t-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester (antioxidant 1010). The amount of the antioxidant to be used is not particularly limited, but is usually 0.01 to 1% by weight.

Wherein, the optional light stabilizer can prevent the product from photo-aging and prolong the service life of the product, and the optional light stabilizer comprises any one or more of the following light stabilizers: light-shielding agents such as carbon black, titanium dioxide, zinc oxide, calcium sulfite; ultraviolet absorbers such as 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-n-octyloxybenzophenone, 2- (2-hydroxy-3, 5-di-tert-butylphenyl) -5-chlorobenzotriazole, 2- (2-hydroxy-5-methylphenyl) benzotriazole, 2,4, 6-tris (2-hydroxy-4-n-butoxyphenyl) -1,3, 5-s-triazine, 2-ethylhexyl 2-cyano-3, 3-diphenylacrylate; precursor type ultraviolet absorbers such as p-tert-butyl benzoate salicylate, bisphenol A disalicylate; ultraviolet ray quenchers, such as bis (3, 5-di-tert-butyl-4-hydroxybenzylphosphonic acid monoethyl ester), 2' -thiobis (4-tert-octylphenoloxy) nickel; hindered amine light stabilizers such as bis (2,2,6, 6-tetramethylpiperidine) sebacate, 2,2,6, 6-tetramethylpiperidine benzoate, tris (1,2,2,6, 6-pentamethylpiperidyl) phosphite; other light stabilizers, such as 2, 4-di-tert-butyl-4-hydroxybenzoic acid (2, 4-di-tert-butylphenyl) ester, alkylphosphoric acid amide, zinc N, N '-di-N-butyldithiocarbamate, nickel N, N' -di-N-butyldithiocarbamate, etc.; among them, carbon black and bis (2,2,6, 6-tetramethylpiperidine) sebacate (light stabilizer 770) are preferable as the light stabilizer. The amount of the light stabilizer to be used is not particularly limited, but is usually 0.01 to 0.5% by weight.

Wherein, the optional heat stabilizer can prevent the polymer sample from generating chemical changes due to heat during processing or use, or delay the changes to achieve the purpose of prolonging the service life, and includes but is not limited to any one or any several of the following heat stabilizers: lead salts, such as tribasic lead sulfate, dibasic lead phosphite, dibasic lead stearate, dibasic lead benzoate, tribasic lead maleate, basic lead silicate, lead stearate, lead salicylate, dibasic lead phthalate, basic lead carbonate, silica gel coprecipitated lead silicate; metal soaps: such as cadmium stearate, barium stearate, calcium stearate, lead stearate, zinc stearate; organotin compounds, such as di-n-butyltin dilaurate, di-n-octyltin dilaurate, di (n) -butyltin maleate, mono-octyl di-n-octyltin dimaleate, di-n-octyltin isooctyl dimercaptoacetate, tin C-102, isooctyl dimethyltin dimercaptoacetate; antimony stabilizers such as antimony mercaptide, antimony thioglycolate, antimony mercaptocarboxylate, antimony carboxylate; epoxy compounds, such as epoxidized oils, epoxidized fatty acid esters; phosphites, such as triaryl phosphites, trialkyl phosphites, triarylalkyl phosphites, alkyl-aryl mixed esters, polymeric phosphites; among them, barium stearate, calcium stearate, di-n-butyltin dilaurate, and di (n) -butyltin maleate are preferable as the heat stabilizer. The amount of the heat stabilizer to be used is not particularly limited, but is usually 0.1 to 0.5% by weight.

The optional toughening agent can reduce the brittleness of a material product, increase the toughness and improve the bearing strength of the material, and comprises but is not limited to any one or more of the following toughening agents: methyl methacrylate-butadiene-styrene copolymer resin, chlorinated polyethylene resin, ethylene-vinyl acetate copolymer resin and its modified product, acrylonitrile-butadiene-styrene copolymer, acrylonitrile-butadiene copolymer, ethylene-propylene rubber, ethylene-propylene-diene monomer rubber, butadiene rubber, styrene-butadiene-styrene block copolymer, etc.; among them, the toughening agent is preferably ethylene-propylene rubber, acrylonitrile-butadiene-styrene copolymer (ABS), styrene-butadiene-styrene block copolymer (SBS), methyl methacrylate-butadiene-styrene copolymer resin (MBS) or chlorinated polyethylene resin (CPE). The amount of the toughening agent to be used is not particularly limited, but is generally 5 to 10% by weight.

Wherein, the optional plasticizer can increase the plasticity of the material product, so that the hardness, modulus, softening temperature and brittle temperature of the product are reduced, and the elongation, flexibility and flexibility of the product are improved, and the optional plasticizer comprises any one or more of the following plasticizers: phthalic acid esters: dibutyl phthalate, dioctyl phthalate, diisooctyl phthalate, diheptyl phthalate, diisodecyl phthalate, diisononyl phthalate, butylbenzyl phthalate, butyl glycolate phthalate, dicyclohexyl phthalate, bis (tridecyl) phthalate, bis (2-ethyl) hexyl terephthalate; phosphoric acid esters such as tricresyl phosphate, diphenyl-2-ethyl hexyl phosphate; fatty acid esters such as di (2-ethyl) hexyl adipate, di (2-ethyl) hexyl sebacate; epoxy compounds, e.g. epoxyglycerides, epoxidized fatty acid monoesters, epoxidized tetrahydrophthalates, epoxidized soybean oil, epoxidized 2-ethylhexyl stearate, epoxidized soybean oleic acid 2-ethylhexyl ester, di (2-ethyl) hexyl 4, 5-epoxytetrahydrophthalate, methyl chrysene acetyl ricinoleate; glycol esters, e.g. C_5～9Acid ethylene glycol ester, C_5～9Triethylene glycol diacetate; chlorine-containing compounds such as greening paraffin, chlorinated fatty acid ester; polyesters such as 1, 2-propanediol-series ethanedioic acid polyester, 1, 2-propanediol sebacic acid polyester, phenyl petroleum sulfonate, trimellitate ester, citrate ester and the like; among them, the plasticizer is preferably dioctyl phthalate (DOP), dibutyl phthalate (DBP), diisooctyl phthalate (DIOP), diisononyl phthalate (DINP), diisodecyl phthalate (DIDP), tricresyl phosphate (TCP); various vegetable oils, animal oils, synthetic oils such as naphthenic oils, etc. The amount of the plasticizer to be used is not particularly limited, but is generally 5 to 20% by weight.

Wherein the optional dynamic modifier is used for adjusting the dynamic of dynamic covalent and/or non-covalent interactions, and comprises natural and synthetic dynamic modifiers. The amount of the dynamic adjusting agent to be used is not particularly limited, but is usually 0.5 to 20% by weight.

Wherein the optional antistatic agent can guide or eliminate the harmful charges accumulated in the material product, so that the material product does not cause inconvenience or harm to production and life, and the optional antistatic agent comprises any one or more of the following antistatic agents: anionic antistatic agents such as alkylsulfonates, sodium p-nonylphenoxypropane sulfonate, alkyl phosphate ester diethanolamine salts, potassium p-nonylphenyl ether sulfonates, phosphate ester derivatives, phosphates, phosphate ester derivatives, fatty amine sulfonates, sodium butyrate sulfonates; cationic antistatic agents, such as fatty ammonium hydrochloride, lauryl trimethyl ammonium chloride, lauryl trimethyl ammonium bromide, alkyl hydroxyethyl dimethyl ammonium perchlorate; zwitterionic antistatic agents, such as alkyl dicarboxymethylammonium ethyl inner salt, lauryl betaine, N, N, N-trialkylammonium acetyl (N' -alkyl) amine ethyl inner salt, N-lauryl-N, N-dipolyoxyethylene-N-ethylphosphonic acid sodium salt, N-alkyl amino acid salts; nonionic antistatic agents such as fatty acid ethylene oxide adducts, alkylphenol ethylene oxide adducts, polyoxyethylene ether phosphate esters, glycerin fatty acid esters; high molecular antistatic agents such as polyallylamine N-quaternary ammonium salt substitutes, poly-4-vinyl-1-acetonylpyridinophosphoric acid-p-butylbenzene ester salts, and the like; among them, lauryl trimethyl ammonium chloride and alkyl phosphate diethanol amine salt (antistatic agent P) are preferable as the antistatic agent. The amount of the antistatic agent to be used is not particularly limited, but is generally 0.3 to 3% by weight.

Wherein, the optional colorant can make the product present the required color and increase the surface color, and the optional colorant comprises any one or more of the following colorants: inorganic pigments such as titanium white, chrome yellow, cadmium red, iron red, molybdenum chrome red, ultramarine, chrome green, carbon black; organic pigments, e.g. lithol rubine BK, lake Red C, perylene Red, Jia-base R Red, Phthalocyanine Red, permanent magenta HF3C, Plastic scarlet R and Clomomor Red BR, permanent orange HL, fast yellow G, Ciba Plastic yellow R, permanent yellow 3G, permanent yellow H₂G. Phthalocyanine blue B, phthalocyanine green, plastic purple RL and aniline black; organic dyes such as thioindigo red, vat yellow 4GF, Vaseline blue RSN, basic rose essence, oil-soluble yellow, etc.; the colorant is selected according to the color requirement of the sample, and is not particularly limited. The amount of the colorant to be used is not particularly limited, but is generally 0.01 to 5% by weight, more preferably 0.2 to 2% by weight.

Wherein, the optional fluorescent whitening agent can enable the dyed materials to obtain the fluorite-like flash luminescence effect, and the optional fluorescent whitening agent comprises any one or more of the following fluorescent whitening agents: stilbene type, coumarin type, pyrazoline type, benzoxazine type, phthalimide type, and the like; among the fluorescent whitening agents, sodium diphenylethylene disulfonate (fluorescent whitening agent CBS), 4-bis (5-methyl-2-benzoxazolyl) stilbene (fluorescent whitening agent KSN), 2- (4, 4' -distyryl) bisbenzoxazole (fluorescent whitening agent OB-1) are preferable. The amount of the fluorescent whitening agent to be used is not particularly limited, but is generally 0.002 to 0.03% by weight.

Wherein the optional matting agent is capable of causing diffuse reflection of incident light upon reaching the sample surface, resulting in a low gloss matte and matte appearance, including but not limited to any one or any of the following matting agents: settling barium sulfate, silicon dioxide, hydrous gypsum powder, talcum powder, titanium dioxide, polymethyl urea resin and the like; among them, the matting agent is preferably silica. The amount of the matting agent to be used is not particularly limited, but is generally 2 to 5% by weight.

Wherein, the optional flame retardant can increase the flame resistance of the material product, and includes but is not limited to any one or any several of the following flame retardants: phosphorus series such as red phosphorus, tricresyl phosphate, triphenyl phosphate, tricresyl phosphate, cresyldiphenyl phosphate; halogen-containing phosphates such as tris (2, 3-dibromopropyl) phosphate, tris (2, 3-dichloropropyl) phosphate; organic halides such as high chlorine content chlorinated paraffins, 1,2, 2-tetrabromoethane, decabromodiphenyl ether, perchlorocyclopentadecane; inorganic flame retardants such as antimony trioxide, aluminum hydroxide, magnesium hydroxide, zinc borate; reactive flame retardants such as chlorendic anhydride, bis (2, 3-dibromopropyl) fumarate, tetrabromobisphenol A, tetrabromophthalic anhydride, and the like; among them, decabromodiphenyl ether, triphenyl phosphate, tricresyl phosphate, cresyldiphenyl phosphate, and antimony trioxide are preferable as the flame retardant. The amount of the flame retardant to be used is not particularly limited, but is generally 1 to 20% by weight.

In the preparation process of the dilatant energy-absorbing component, other optional auxiliary agents are preferably an antioxidant, a heat stabilizer, a crosslinking agent, a toughening agent, a plasticizer and a foaming agent.

In the present invention, the optional filler mainly plays the following roles in the shoe material: the shrinkage rate of the product is reduced, and the dimensional stability, the surface smoothness, the gloss or the matt property and the like of the product are improved; adjusting the viscosity; the requirements of different performances, such as improving the impact strength, the compression strength, the hardness, the rigidity and the modulus of the shoe material, improving the wear resistance, the heat deformation temperature, the electrical conductivity and the thermal conductivity, and the like, are met; improving the coloring effect of the pigment; endowing photostability and chemical resistance; sixthly, the shoe material has the function of increasing volume, can reduce cost and improve the competitive capacity of the shoe material in the market.

The optional fillers include, but are not limited to, inorganic non-metallic fillers, organic fillers, and organometallic compound fillers.

The inorganic non-metallic filler includes, but is not limited to, any one or any ofSeveral of them are as follows: calcium carbonate, argil, barium sulfate, calcium sulfate and calcium sulfite, talcum powder, white carbon black, quartz, mica powder, clay, asbestos fiber, orthoclase, chalk, limestone, barite powder, gypsum, graphite, carbon black, graphene oxide, fullerene, carbon nano tube, molybdenum disulfide, silica, zinc oxide, alumina, diatomite, red mud, wollastonite, silicon-aluminum carbon black, aluminum hydroxide, magnesium hydroxide, nano silica, nano Fe ₃O₄Particulate, nano gamma-Fe₂O₃Particulate, nano MgFe₂O₄Particulate, nano-MnFe₂O₄Granular, nano CoFe₂O₄Particles, quantum dots (including but not limited to silicon quantum dots, germanium quantum dots, cadmium sulfide quantum dots, cadmium selenide quantum dots, cadmium telluride quantum dots, zinc selenide quantum dots, lead sulfide quantum dots, lead selenide quantum dots, indium phosphide quantum dots, and indium arsenide quantum dots), upconversion crystal particles (including but not limited to NaYF)₄:Er、CaF₂:Er、Gd₂(MoO₄)₃:Er、Y₂O₃:Er、Gd₂O₂S:Er、BaY₂F₈:Er、LiNbO₃:Er,Yb,Ln、Gd₂O₂:Er,Yb、Y₃Al₅O₁₂:Er,Yb、TiO₂:Er,Yb、YF₃:Er,Yb、Lu₂O₃:Yb,Tm、NaYF₄:Er,Yb、LaCl₃:Pr、NaGdF₄:Yb,Tm@NaGdF₄Core-shell nanostructure of Ln, NaYF₄:Yb,Tm、Y2BaZnO₅:Yb,Ho、NaYF₄:Yb,Er@NaYF₄Core-shell nanostructures of Yb, Tm, NaYF₄:Yb,Tm@NaGdF₄Core-shell nanostructure of Yb), oil shale powder, expanded perlite powder, aluminum nitride powder, boron nitride powder, vermiculite, iron mud, white mud, alkali mud, boron mud, glass beads, resin beads, glass powder, glass fibers, carbon fibers, quartz fibers, carbon-core boron fibers, titanium diboride fibers, calcium titanate fibers, silicon carbide fibers, ceramic fibers, whiskers and the like. In one embodiment of the present invention, inorganic non-metallic fillers having electrical conductivity are preferred, including but not limited to graphite, carbon black, graphiteAlkene, carbon nanotube, carbon fiber, conveniently obtain the shoes material of electric conductivity and/or having the electric heat function. In another embodiment of the present invention, the non-metallic filler having the heat generating function under the action of infrared and/or near-infrared light and/or electromagnetic is preferably selected from graphene, graphene oxide, carbon nanotube, nano-Fe ₃O₄And the shoe material which can be heated by infrared and/or near infrared light can be conveniently obtained. Good heating performance, especially remote control heating performance, and is beneficial to obtaining controllable shape memory, self-repairing performance and the like. In another embodiment of the present invention, the inorganic non-metallic filler with thermal conductivity is preferably selected from graphite, graphene, carbon nanotube, aluminum nitride, boron nitride, and silicon carbide, which facilitates obtaining the shoe material with thermal conductivity.

The metal filler includes metal compounds, including but not limited to any one or any several of the following: metal powders, fibers including but not limited to powders, fibers of copper, silver, nickel, iron, gold, and the like, and alloys thereof; nano-metal particles including, but not limited to, nano-gold particles, nano-silver particles, nano-palladium particles, nano-iron particles, nano-cobalt particles, nano-nickel particles, nano-CoPt₃Particles, nano FePt particles, nano FePd particles, nickel-iron bimetal magnetic nanoparticles and other nano metal particles capable of heating under at least one of infrared, near infrared, ultraviolet and electromagnetic action; liquid metals including, but not limited to, mercury, gallium indium liquid alloys, gallium indium tin liquid alloys, other gallium based liquid metal alloys. In one embodiment of the present invention, fillers that can be heated electromagnetically and/or near-infrared, including but not limited to nanogold, nanosilver, and nanopalladium, are preferred for remote heating. In another embodiment of the present invention, liquid metal fillers are preferred, which can enhance the thermal and electrical conductivity of the flexible footwear material while maintaining the flexibility and ductility of the base material.

The organic filler includes, but is not limited to, any one or any several of the following: natural organic filler; ② synthetic resin filler; ③ synthetic rubber filler; fourthly, synthetic fiber filler; foamable polymer particles; sixthly, conjugated polymer; organic functional dye/pigment. The organic filler with the properties of ultraviolet absorption, fluorescence, luminescence, photo-thermal and the like has important significance for the invention, and the properties can be fully utilized to obtain multifunctionality.

The organic metal compound filler contains a metal organic complex component, wherein a metal atom is directly connected with a carbon atom to form a bond (including a coordination bond, a sigma bond and the like), and the metal organic complex component can be a small molecule or a large molecule and can be in an amorphous or crystal structure. Metal organic compounds tend to have excellent properties including uv absorption, fluorescence, luminescence, magnetism, catalysis, photo-thermal, electromagnetic heat, and the like.

Wherein, the type of the added filler is not limited, and is mainly determined according to the required material performance, and calcium carbonate, clay, carbon black, graphene and nano Fe are preferred₃O₄Particles, nano-silica, quantum dots, up-conversion metal particles, hollow/foamable microspheres, glass fibers, carbon fibers, metal powders, nano-metal particles, synthetic rubbers, synthetic fibers, synthetic resins, resin microbeads, organometallic compounds, organic materials having photo-thermal properties. The amount of the filler used is not particularly limited, but is generally 1 to 30% by weight. In the embodiment of the invention, the filler can be selectively modified and then dispersed and compounded or directly connected into a polymer chain, so that the dispersibility, the compatibility, the filling amount and the like can be effectively improved, and the filler has important significance particularly on the action of photo-thermal, electromagnetic heat and the like.

The cross-linking agent is an auxiliary agent which can release free radicals by heating to activate polymer chains and enable the polymer chains to generate chemical reaction to be cross-linked with each other, and the cross-linking agent comprises any one or more of the following cross-linking agents: 2, 5-dimethyl-2, 5-bis (t-butylperoxy) hexane, 2, 5-dimethyl-2, 5-bis (t-butylperoxy) hexyne-3, 2, 5-dimethyl-2, 5-bis (benzoyl peroxide) hexane, α -bis (t-butylperoxy) diisopropylbenzene, di-t-butyl peroxide, diisopropylbenzene peroxide, benzoyl peroxide, azobisisobutyronitrile, lauryl peroxide, t-butyl peroxyacetate, t-butyl peroxybenzoate, t-butyl peroxy (2-ethylhexanoate), 1-bis (t-butylperoxy) cyclohexane, 1-bis (t-butylperoxy) -3,3, 5-trimethylcyclohexane, n-butyl 4, 4' -bis (t-butylperoxy) valerate, bis (4-t-butylcyclohexyl) peroxydicarbonate, Tert-butyl peroxyisopropyl carbonate, di-tert-butyl diperoxyphthalate, tert-butyl hydroperoxide, 2-bis (tert-butyl peroxyl) butane, methyl ethyl ketone peroxide, cyclohexanone peroxide, methyl isobutyl ketone peroxide, succinic acid peroxide, 2-bis (4, 4-di-tert-butylperoxycyclohexyl) propane, tert-butyl peroxylaurate, 1, 3-bis- (2-tert-butylperoxyisopropyl) benzene, triallyl isocyanurate; preferably di-tert-butyl peroxide, dicumyl peroxide, benzoyl peroxide, 1-bis (tert-butyl peroxide) cyclohexane, 1-bis (tert-butyl peroxide) -3,3, 5-trimethylcyclohexane; more preferred are dicumyl peroxide, benzoyl peroxide, 1-bis (t-butylperoxy) cyclohexane, and 1-bis (t-butylperoxy) -3,3, 5-trimethylcyclohexane.

The rubber comprises but is not limited to any one or any several of the following rubbers: natural Rubber (NR), styrene-butadiene rubber (SBR), Butadiene Rubber (BR), Isoprene Rubber (IR), Chloroprene Rubber (CR), butyl rubber (IIR), nitrile rubber (NBR), hydrogenated nitrile rubber (HNBR), ethylene propylene rubber (EPM \ EPDM), silicone rubber (Q), Fluororubber (FPM), urethane rubber (AU \ EU), acrylate rubber (ACM \ AEM), chlorosulfonated polyethylene rubber (CSM), epichlorohydrin rubber (CO \ ECO), chlorinated polyethylene rubber (CM or CPE); natural Rubber (NR), styrene-butadiene rubber (SBR), Butadiene Rubber (BR), Isoprene Rubber (IR), Chloroprene Rubber (CR), butyl rubber (IIR) are preferable; more preferred are Styrene Butadiene Rubber (SBR), Butadiene Rubber (BR), and Isoprene Rubber (IR).

In the invention, various adaptive protectors with flexibility, impact resistance, shock absorption, buffering, shape memory and portability can be obtained by reasonably designing and combining the aspects of the appearance/three-dimensional geometric configuration, the internal structure, materials (chemical and micro multi-layer structures such as network structures, chemical structures and the like, and fasteners, auxiliary materials, integral protectors (structures such as knee pads or panty-shaped protectors) and the like of the energy absorption component, and the like, and can be used for protecting human bodies, even animal bodies and even articles.

The above descriptions are only for clearly illustrating the technical solutions of the present invention, and the selected preferred embodiments of the present invention should not be considered as limiting the scope, and one skilled in the art can reasonably combine the contents of the present invention according to the actual product requirements and applications, and can reasonably develop, equivalently replace or redesign the same, and can directly or indirectly apply to other related technical fields.

The flexible adaptive brace of the present invention is further described below in conjunction with some embodiments. The specific examples are intended to illustrate the present invention in further detail, and are not intended to limit the scope of the present invention.

Example 1

The flexible self-adaptive protective tool provided by the embodiment is a patella protecting band. The inner layer is made of sweat-absorbing fabric, the inner layer fabric and the other outer layer fabric stitch together an EVA sponge with the thickness of 2mm and an dilatancy energy-absorbing assembly with the length of 30mm and the thickness of 5mm and a pure solid structure, wherein the dilatancy energy-absorbing assembly is positioned on the inner side of the EVA sponge. In order to prevent the dilatant energy-absorbing component from sliding left and right, sewing and fixing are also carried out on the left and right of the dilatant energy-absorbing component. The surface of the outer fabric is sewn with a section of hook and loop fastener rough surface and is sewn with a section of elastic belt, a plastic buckle is sewn at the starting point of the rough surface and is used for penetrating through the elastic belt, a section of hook and loop fastener surface is sewn at the outer side of the tail end of the elastic belt, and the elastic belt can be reversely attached to the rough surface of the hook and loop fastener after penetrating through the plastic buckle; the inner side of the end of the elastic band (the front side when in use) can be provided with a logo. Wherein the dilatant energy-absorbing component is based on a hybrid covalently cross-linked polysiloxane of dynamic covalent inorganic borate silicon bonds and common covalent silicon oxygen bonds, and the hardness of the hybrid covalently cross-linked polysiloxane is about 8A. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, the impact energy of 10J is used, the transmitted impact force is measured to be 9.5 +/-0.3 kN, the transmitted impact force of a reference sample under the same parameters is measured to be 16.6 +/-0.4 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 40%. The elastic band is tensioned, the dilatability energy-absorbing component deforms correspondingly to the shape of the patella to be tightly attached, the shape of the patella is memorized, the attachment degree is about 90-95%, the hardness can be increased according to the movement strength and the deformation and movement degree/speed of the patella in the running use process, and an excellent protection effect is achieved.

Example 2

The flexible adaptive protector provided by the embodiment is a head band. The outer layer is a sweat-absorbent elastic fiber fabric which is sewn into a tube shape, the inner core is a vitreous polyurethane sponge compound dilatability energy absorption component filled with polysiloxane based on inorganic boric acid silicon ester bond dynamic covalent crosslinking, the thickness of the sponge compound is 3mm, the density is 0.3g/mL, and the hardness in a static state is 15C. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, 10J impact energy is used, the transmitted impact force is measured to be 6.3 +/-0.2 kN, the transmitted impact force of a reference sample under the same parameters is measured to be 15.2 +/-0.3 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 58%. Under the tensile force of the elastic fabric, the dilatant inner core component of the head band deforms, tightly fits and memorizes the shape of a circle from the forehead to the back of the head, and the fitting degree is about 95-100%. The self-adaptive head band is light, close-fitting and comfortable, has excellent impact-resistant protection effect, and is convenient for protecting sports such as baseball, basketball, tennis and the like.

Example 3

The flexible adaptive brace provided by the present embodiment is a knee brace. The kneepad has a cylindrical shape and can be directly sleeved on the leg to be worn at the position of the knee. The wearable part of the main body of the cylinder is an elastic fabric sleeve which is integrally woven and formed by elastic fibers, and a dilatancy energy-absorbing assembly is bonded at the knee position through a sweat-absorbing elastic fabric on the inner side of the sleeve. The overall length of the resilient sleeve is about 40 cm. The dilatant energy absorbing component is a block of an oval-like foamed polysiloxane in which filled hollow polymeric microspheres are foamed and based on an inorganic borosilicate silicone linkage dynamically covalently cross-linked polysiloxane to produce dilatancy. The dilatancy energy-absorbing component is prepared by uniformly mixing boronized polydimethylsiloxane, a proper amount of additives and foamable polymer microsphere fillers as raw materials and then foaming and molding in a vulcanizing machine. The dilatancy energy-absorbing component has a through hollow structure for ventilation and flexibility improvement; it has a length of at most about 23cm, a width of at most about 12cm, a thickness of at most 10mm, an apparent density of 0.5g/mL, and a hardness of 20C in a rest state. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, 10J impact energy is used, the transmitted impact force is measured to be 12.2 +/-0.5 kN, the transmitted impact force of a reference sample under the same parameters is measured to be 21.7 +/-0.4 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 43 percent. Under the action of the tensile force of the elastic sleeve, the flexible dilatancy energy-absorbing assembly can be tightly attached to the knee part and memorize the shape of the knee, the attachment degree is about 75-80%, the assembly is not easy to shift when falling down in the movement process, and the dilatancy of the assembly improves the impact resistance.

Example 4

The flexible adaptive brace provided by this embodiment is a meniscus brace. The protector has a cylindrical shape and can be worn on the leg directly at the knee position. The wearable part of the main body of the cylinder is an elastic fabric sleeve which is integrally woven and formed by elastic fibers, and a similar elliptical ring-shaped dilatability energy-absorbing assembly is bonded at the knee position on the inner side of the sleeve through a sweat-absorbing elastic fabric. The overall length of the resilient sleeve is about 40 cm. The shape of the oval-like annular dilatancy energy-absorbing component is a hollow oval-like structure, the upper part of the oval-like annular dilatancy energy-absorbing component is thinner, the lower part of the oval-like annular dilatancy energy-absorbing component is wider, and the oval-like annular dilatancy energy-absorbing component is actually similar to an almond shape; a maximum length of about 15cm and a maximum width of about 10 cm; the hollow portion is approximately similar in shape and size to the knee position to facilitate extension of the knee portion into the assembly.

The cross section of the elliptical ring-like dilatancy energy-absorbing assembly is in a half-moon tooth-like shape, and one side close to the plane is close to the human body; the core of the thermoplastic elastomer is a pure solid structure, and the material is dilatant SIS thermoplastic elastomer filled with polysiloxane and plasticizer which are dynamically and covalently crosslinked by inorganic boric acid silicon ester bonds; the outside of the bag is coated with a thermoplastic polyurethane bag with the thickness of 10um which is bonded by hot pressing; the hardness in the resting state was 10A. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, 10J impact energy is used, the transmitted impact force is measured to be 9.1 +/-0.2 kN (the test curve is shown in the specification and attached figure 6 (a)), the transmitted impact force of a reference sample under the same test condition is measured to be 18.2 +/-0.3 kN (the test curve is shown in the specification and attached figure 6 (b)), and the dilatant energy-absorbing component improves the energy-absorbing performance of a product by about 50%. Under the tensile effect of the elastic sleeve, the flexible dilatant energy-absorbing assembly can be tightly attached to the periphery of a knee and memorize the shape, the attachment degree of the flexible dilatant energy-absorbing assembly is about 90-100%, the flexible dilatant energy-absorbing assembly is not easy to shift in the exercise process, the dilatant characteristic of the dilatant energy-absorbing assembly can lead to the self-adaptive change of hardness, strength and the like along with the exercise speed, the exercise is more violent, the hardness is higher, the strength is higher, and the protective tool can better massage and protect the meniscus.

Example 5

The flexible adaptive brace provided by the present embodiment is a helmet. The protective cap is of an integrally woven structure and is formed by integrally weaving elastic fibers and elastic dilatancy wires. The dilatant wire is prepared from a dilatant SBS thermoplastic elastomer filled with polysiloxane and a plasticizer which are dynamically and covalently crosslinked through inorganic silicon borate bonds through hot melting and extrusion, and the diameter of the dilatant SBS thermoplastic elastomer is about 0.2 mm. The flexible protective cap is woven by a flat knitting machine, and the hardness of the protective cap in a static state is 8A. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, 10J impact energy is used, the transmitted impact force is measured to be 7.4 +/-0.3 kN (the test curve is shown in the specification and attached figure 7 (a)), the transmitted impact force of a reference sample under the same test condition is measured to be 17.7 +/-0.4 kN (the test curve is shown in the specification and attached figure 7 (b)), and the dilatant energy-absorbing component improves the energy-absorbing performance of a product by about 58%. By integrally knitting, dilatant threads are knitted into the helmet, and because dilatant threads have shape memory, a compact, snug helmet can be obtained with a degree of fit of about 95-100%. The protective cap can be directly worn on the head for protection. The SBS has good cold resistance, and the protective cap has dilatancy, is convenient for impact resistance protection in the event of injury such as impact and the like, and is particularly suitable for outdoor activities/sports/entertainment and the like in winter.

Example 6

The flexible adaptive brace provided by this embodiment is an ankle brace. The ankle protector is of an integrally woven structure and is formed by integrally weaving elastic fibers and elastic dilatant thick wires. The dilatant thick wire is made of hybrid cross-linked polyurethane elastomer which is formed by organic boric acid silicon ester bond dynamic covalent cross-linking and supermolecule hydrogen bond cross-linking. The hybrid cross-linked polyurethane elastomer is prepared by MDI and polytetrahydrofuran, taking the compound (a) as dynamic covalent cross-linking and an amine catalyst, and is extruded to prepare the dilatant heavy wire. The dilatant thick wire has a diameter of about 0.25 mm. Through integrative weaving, bloated flowing nature heavy wire is woven into ankle position of ankle protective equipment, forms the bloated flowing nature protective layer subassembly of the three-dimensional weaving of a circle in ankle position. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, 10J impact energy is used, the transmitted impact force is measured to be 8.3 +/-0.2 kN, the transmitted impact force of a reference sample under the same parameters is measured to be 14.5 +/-0.3 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 42%. Because the dilatant wire has shape memory, a compact, snug ankle protector can be achieved. The ankle protective equipment can directly be dressed in the ankle position, exposes the half sole for protection ankle. The assembly knitted by the dilatant polyurethane thermoplastic thick wire has good elasticity and shape memory, can tighten and protect the ankle, and has the attaching degree of about 80-85%; after the ankle protective tool is worn, socks and shoes can be further worn, and the self-adaptability protection in the motion process is facilitated.

Example 7

The flexible adaptive brace provided by the embodiment is a protective glove. The glove is formed by weaving elastic fibers, and the back of the finger is coated with the dilatant energy-absorbing component. The dilatancy energy-absorbing component is a hybrid cross-linked polyurethane elastomer which is formed by organic boric acid silicone bond dynamic covalent cross-linking, supermolecule cross-linking and common covalent cross-linking, and is formed by directly casting a precursor material of the polyurethane elastomer on the back of a glove finger for polymerization cross-linking, and after the cross-linking is finished, the adhesion of the elastomer on the back of the glove finger is realized through the polyurethane elastomer. The hybrid cross-linked polyurethane elastomer is prepared by reacting a borate compound (a), 2', 6',2 '-terpyridine-4' -methanol (b), toluene-2, 4, 6-triyl triisocyanate, polyethylene glycol 400 and a proper amount of catalyst under the condition of a solvent, mixing the reaction product with an acetonitrile solution of zinc chloride, and coating the mixture on the back of a glove knitted by elastic fibers.

The dilatant energy absorbing assembly has a stiffness of about 12A at rest. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, 10J impact energy is used, the transmitted impact force is measured to be 8.9 +/-0.3 KN, the transmitted impact force of a reference sample under the same parameters is measured to be 18.5 +/-0.4 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 51%. The gloves can be worn on the hands in a tight fit mode, the fingers can move conveniently, the fit degree is about 85-90% through the flexibility and the shape memory of the swelling flow polyurethane elastomer component, joint positions and even the back of the whole finger can be well protected, and the damage caused by impact is reduced.

Example 8

The flexible adaptive brace provided by the present embodiment is a knee brace. The elastic component of the kneepad is a sleeve sewn by lycra, an elastic band is sewn on the inner side of the upper end of the sleeve, and a silica gel anti-slip strip is arranged on the inner side of the elastic band. A dilatancy energy-absorbing component is bonded on the outer layer of the sleeve knee part, and a layer of Lycra fabric is further sewn on the outer layer of the component. The substrate of the dilatant energy-absorbing component is EVA elastic foam, wherein polytetrahydrofuran based on inorganic borate silicon ester bond dynamic covalent crosslinking is filled in the EVA elastic foam, and an interpenetrating network structure is formed by a dynamic polymer and the EVA substrate. The preparation method of the dilatancy energy-absorbing assembly comprises the following steps: the end dihydroxy polytetrahydrofuran PTMG-3000 and inorganic boric acid react to prepare a polytetrahydrofuran dynamic polymer; taking 100 parts of EVA, 20 parts of polytetrahydrofuran dynamic polymer, 1 part of zinc stearate, 2 parts of AC foaming agent and 1 part of BIBP crosslinking agent, uniformly mixing, and then carrying out die pressing, foaming and forming to obtain the dilatancy energy-absorbing component, wherein the dilatancy energy-absorbing component has a fish scale-shaped surface structure, grooves are formed among fish scales, and the foamed cotton can be conveniently bent; the penetrating hollow structure is used for ventilation and improving flexibility; the length of the protective tool is about 23cm at most, the width of the protective tool is about 12cm at most, the thickness of the protective tool is 10mm at most, the apparent density of the protective tool is 0.2g/mL, the hardness of the protective tool in a static state is 30C, an impact test is carried out on the dilatant energy-absorbing component part of the protective tool according to an EN1621-2012 standard method, the transmitted impact force is 9.3 +/-0.3 KN measured by using 10J impact energy, the transmitted impact force of a reference sample under the same test condition is 17.9 +/-0.4 kN measured under the same parameter, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 48%. Under the tensile action of the Lycra elastic sleeve, the flexible dilatancy energy-absorbing assembly can be tightly attached to the knee part and memorize the shape of the knee through a fish scale structure, dilatancy and low hardness, the attachment degree is about 75-80%, the flexible dilatancy energy-absorbing assembly is not easy to shift when falling down in the exercise process, and the dilatancy of the flexible dilatancy energy-absorbing assembly improves the impact resistance of the protector.

Example 9

The flexible adaptive brace provided by this embodiment is a meniscus brace. The inner layer of the protective device is made of sweat-absorbing fabric, the breathable polyurethane sponge with the thickness of about 2mm is arranged between the inner layer fabric and the outer layer fabric, and the circular-ring-shaped dilatancy energy-absorbing component is sewn between the polyurethane sponge and the outer layer fabric. The protective equipment is in the leg of knee rear side curved fretwork of going up, and link buckle and elastic cord are all sewed up at both ends about the protective equipment, and the elastic cord can pass the buckle, and the magic subsides on the rethread elastic cord are fixed. The dilatant energy-absorbing component has an outer ring diameter of about 12cm and an inner ring diameter of about 7 cm; the cross section is similar to olive shape; the modified SBS dynamic thermoplastic elastomer is prepared by further die pressing of a modified SBS dynamic thermoplastic elastomer formed by organic boric acid silicon ester bond dynamic covalent crosslinking and supermolecule crosslinking hybrid crosslinking. The modified SBS dynamic thermoplastic elastomer is formed by click chemical modification of a multi-mercapto compound (a) and 2-cyanoethanethiol.

The dilatancy energy-absorbing component is prepared from the prepared modified SBS dynamic thermoplastic elastomer, and the hardness of the dilatancy energy-absorbing component in a static state is 13A. Performing impact test on the dilatant energy-absorbing component part of the protector according to an EN1621-2012 standard method, using 10J impact energy, and measuring that the transmitted impact force is 7.4 +/-0.3 KN (a test curve is shown in the specification and attached figure 8 (a)), and under the same test condition, measuring that the transmitted impact force of a reference sample under the same parameters is 16.3 +/-0.4 kN (a test curve is shown in the specification and attached figure 8 (b)), wherein the dilatant energy-absorbing component improves the energy-absorbing performance of a product by about 55%; wherein hollow glass microspheres are also added, and the apparent density is about 0.5 g/mL. Under the action of tension of the elastic band, the flexible dilatant energy-absorbing assembly can be tightly attached to the periphery of a knee and memorize the shape, the attachment degree of the flexible dilatant energy-absorbing assembly is about 85-90%, the flexible dilatant energy-absorbing assembly is not easy to shift in the exercise process, the dilatant characteristic of the dilatant energy-absorbing assembly can lead to the self-adaptive change of hardness, strength and the like along with the exercise speed, the exercise is more violent, the hardness is higher, the strength is higher, and the protective tool can better massage and protect the meniscus.

Example 10

The flexible adaptive brace provided by the present embodiment is an elbow brace. The elbow guard is formed by integrally weaving elastic fibers, and the elbow position is formed by weaving dilatant thick wires. The dilatant thick wire is prepared from an SBS thermoplastic elastomer with a soft segment modified by a pendant carbamate bond monodentate hydrogen bond group. The modified SBS dynamic thermoplastic elastomer is formed by performing click chemical modification on SBS with the oil filling rate of 150% through 1-mercapto polyethylene glycol (molecular weight is 1000) and ethyl isocyanate, and then the modified SBS dynamic thermoplastic elastomer is obtained through melt extrusion, wherein the hardness of the modified SBS dynamic thermoplastic elastomer in a static state is 10A, and the modified SBS dynamic thermoplastic elastomer generates dynamic dilatancy through the action of a monodentate hydrogen bond. The elbow guard was long-sleeved, but only the elbow location had an integrally woven dilatant energy absorbing assembly approximately 20cm long and 10cm wide. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, 10J impact energy is used, the transmitted impact force is measured to be 8.8 +/-0.5 KN (the test curve is shown in the specification and attached figure 9 (a)), the transmitted impact force of a reference sample under the same test condition is measured to be 19.7 +/-0.4 kN (the test curve is shown in the specification and attached figure 9 (b)), and the dilatant energy-absorbing component improves the energy-absorbing performance of a product by about 55%. Because the elbow protection device adopts the integral weaving technology, the elbow position of the elbow protection device is very easy to bend, but is very compact and attached, the elbow shape can be memorized, the attaching degree is about 90-95%, and the elbow protection device is suitable for elbow movement and elbow protection.

Example 11

The flexible adaptive brace provided by the present embodiment is a knee brace. The knee pad is characterized in that the sleeve is woven by elastic fibers, and the impact-resistant component is woven in a three-dimensional manner at the knee position on the inner side of the sleeve by utilizing dilatant elastic thick wires. The dilatant elastic heavy wire is prepared from a modified polyurethane thermoplastic elastomer with a soft segment modified by a lateral group urea bond hydrogen bond group, and dynamic dilatant property is generated by the hydrogen bond action formed by the lateral group urea bond. The modified polyurethane thermoplastic elastomer is prepared by reacting polyethylene glycol (molecular weight is 5000) with amino on a side group, isopropyl isocyanate and MDI, the dilatant thick wire is obtained by melt extrusion, and finally the impact-resistant assembly is formed by three-dimensional weaving, wherein the hardness of the impact-resistant assembly in a static state is 16A. An additional elastic belt with a magic tape is sewn outside the elbow pad, and the knee pad sleeve can be reinforced and bound at the upper position and the lower position of the knee pad through cross. The three-dimensional woven dilatant energy absorbing assembly having a length of at most about 24cm, a width of at most about 13cm, and a thickness of at most 10 mm; the impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, 10J impact energy is used, the transmitted impact force is measured to be 10.2 +/-0.3 KN, the transmitted impact force of a reference sample under the same parameters is measured to be 20.8 +/-0.5 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 51%. Because three-dimensional weaving molding is adopted, the anti-impact assembly has a large number of hollow structures, is very soft and is resistant to bending; based on the dilatability characteristic, the knee pad can be tightly attached to a knee pad under the action of the elastic sleeve and the elastic belt, the shape of the knee pad is memorized, the attachment degree is about 80-85%, and the knee pad is not easy to shift in the movement process; the dilatability characteristic of the knee joint can cause the hardness, the strength and the like to be adaptively changed along with the movement speed, the more fierce the movement is, the higher the hardness is, the higher the strength is, the vibration of the knee and the meniscus is reduced, and the knee joint can well play a role in impact resistance and protection.

Example 12

The flexible adaptive brace provided by the present embodiment is an elbow brace. The elbow pad is provided with a sleeve which is made of elastic fiber fabrics, and elastic belts with anti-slip silica gel points are sewn on the inner sides of the two ends of the sleeve. A pocket is arranged at the elbow position inside the sleeve, an opening with an elastic belt is arranged above the pocket, and a flexible dilatant energy-absorbing assembly can be arranged through the opening. The dilatant energy-absorbing component is formed by 3D printing of a single material, and has a hollow cell structure, the cell walls have a spherical structure, the cell walls are formed by printing of modified Hytrel thermoplastic polyester filled with polysiloxane (the filling amount is 35 parts) based on inorganic borate silicone ester bond crosslinking, and the cell walls are not filled. The 3D printed dilatant energy absorbing assembly has a length of at most about 20cm, a width of at most about 11cm, a thickness of at most 6mm, and a stiffness at rest of 20A. Performing impact test on the dilatant energy-absorbing component part of the protector according to an EN1621-2012 standard method, using 10J impact energy to measure that the transmitted impact force is 6.3 +/-0.3 KN, and measuring that the transmitted impact force of a reference sample under the same parameters is 15.2 +/-0.3 kN under the same test conditions, wherein the dilatant energy-absorbing component improves the energy-absorbing performance of a product by about 58%; the part is hollowed out, and grooves are formed in the inner surface and the outer surface of the part, so that the ventilation and bending are facilitated. Because the elbow protector has a hollow structure and hollows, and the cell wall has dilatancy and creep property and can be shaped, the elbow protector can be tightly attached to the elbow protector under the elastic action of the elastic sleeve, the shape of the elbow can be memorized, the attachment degree is about 75-80%, and the elbow protector is not easy to displace in the movement process; the dilatancy characteristic of the material can cause the self-adaptive change of the hardness, the strength, the energy absorption property and the like along with the movement speed, the more violent the movement is, the higher the hardness is, the higher the strength is, the better the energy absorption property is, and the material can well play a role in impact resistance protection.

Example 13

The flexible adaptive brace provided by the present embodiment is a knee brace. The kneepad is provided with a sleeve made of elastic fiber fabric, and elastic belts with anti-slip silica gel strips are sewn on the inner sides of two ends of the sleeve. The sleeve is internally sewn with a spandex fabric at the knee position to expand the fluid energy absorbing assembly. The dilatancy energy-absorbing assembly is made of polyurethane foam material based on organic borate silicone ester bond modified cross-linked soft segment, and the three-dimensional geometrical configuration has an inner concave corner structure similar to an octopus sucking disc; the inner side is hot pressed with a layer of spandex and terylene blended fabric for improving the tearing resistance and the impact resistance protection. The polyurethane foam material is prepared by chemically foaming ethoxysilane modified hydroxyl polybutadiene (molecular weight is 3000), 1, 5-pentanediborate di (pinacol ester), polyether polyol (hydroxyl value is 23-26) and MDI.

The dilatant energy absorbing assembly having a length of at most about 23cm, a width of at most about 12cm, and a thickness of at most 10 mm; the hardness in the resting state was 35C. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, the impact energy of 10J is used, the transmitted impact force is measured to be 9.2 +/-0.4 KN, the transmitted impact force of a reference sample under the same parameters is measured to be 20.3 +/-0.3 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 54%. Because the dilatant energy-absorbing component has a foaming structure and an inward concave angle three-dimensional geometric configuration, and the pore wall has dilatability and creep property and can be molded, the knee pad can be tightly attached to a knee pad under the action of the elastic sleeve and the elastic belt, the shape of the knee pad is memorized, the attachment degree of the knee pad is about 90-95%, and the knee pad is not easy to shift in the movement process; the dilatancy characteristic of the knee joint can cause the self-adaptive change of the hardness, the strength, the energy absorption performance and the like along with the movement speed, the more violent the movement is, the higher the hardness is, the higher the strength is, the better the energy absorption performance is, the vibration of knees and meniscus is reduced, and the shock resistance protection effect can be well played; the inner concave angle structure has negative Poisson ratio performance, and the impact resistance effect is further improved.

Example 14

The flexible adaptive brace provided by the present embodiment is a glove. The anti-impact part of the glove is manufactured by 3D printing of multiple materials, wherein one material is thermoplastic polyurethane (with the hardness of 60A), and the other material is dilatant polyurethane (with the hardness of 70A) of inorganic boric acid silicone ester bond modified cross-linked soft segments. The dilatant polyurethane is prepared from hydroxyl polybutadiene (molecular weight of 3000), monoethoxydimethylsilane, inorganic boric acid, polyether polyol (hydroxyl value of 55-59) and MDI through chemical reaction, and the hardness of the dilatant polyurethane in a static state is 70A.

In the 3D printing preparation process of the glove, the dilatant polyurethane is printed on the back and the joint of the finger, and the glove has a simple hollow structure and irregular through holes. The part for wearing is printed by thermoplastic polyurethane (the hardness is about 15A) without dilatancy, and a circular pore structure is printed, so that the air permeability and the weight reduction are facilitated. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, the impact energy of 10J is used, the transmitted impact force is measured to be 5.4 +/-0.4 KN, the transmitted impact force of a reference sample under the same parameters is measured to be 14.3 +/-0.3 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 62%. The two materials in this embodiment adhere well and therefore the printed structure has good mechanical properties on the back and joints of the finger. Due to the fact that the energy absorption component has various pores and hollow structures and the dilatability has creep property, the energy absorption component can be well attached to fingers and joints, the attachment degree is about 70-80%, and the energy absorption component can effectively protect when boxing training or swimming and diving.

Example 15

The flexible adaptive brace provided by the present embodiment is a headgear. The fastener of the head cover is woven by elastic fiber, and a dilatancy energy-absorbing component is sewed from the top of the head to the position close to the ears. The dilatant energy-absorbing component is formed by 3D printing, and is formed by photocuring and printing polyurethane prepolymer liquid containing inorganic borate silicone bonds in the middle of a soft section through an acrylate-based unit. The polyurethane prepolymer liquid is prepared from HO-PEG-PDMS-PEG-OH (molecular weight is about 4500), inorganic boric acid, HDI and hydroxyethyl acrylate.

The dilatancy energy-absorbing component has a spherical simple hollow structure, and the inner side and the outer side of the dilatancy energy-absorbing component are provided with hexagonal block structures (turtle shell structures) and corresponding grooves, so that the dilatancy energy-absorbing component is convenient to bend and reduce weight, and the hardness of the dilatancy energy-absorbing component in a static state is 14A. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, the impact energy of 10J is used, the transmitted impact force is measured to be 9.1 +/-0.2 KN, the transmitted impact force of a reference sample under the same parameters is measured to be 19.2 +/-0.3 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 52 percent. The dilatancy energy-absorbing component of headgear can be according to the head structure good type-shaping and memory shape, the laminating of tightening, and its laminating degree is about 90-95%, can directly regard as flexible helmet to use, is applicable to the passenger of mechanized army and dresses, has excellent shock resistance effect.

Example 16

The flexible adaptive brace provided by the present embodiment is a shin guard. The shin guard is formed by sewing lycra elastic fabric, and a flexible dilatancy energy-absorbing assembly is sewn at the position of the shin. The dilatancy energy-absorbing component is based on a vitrified dilatancy (Tg about 15 ℃) polyurethane foam material and wherein part of the soft segments are modified and crosslinked by organoborate silicone bonds; it has a foaming structure, is partially hollow and has surface grooves; the interior of the composite material contains a three-dimensional braided fabric framework which is used for improving tensile strength and tearing resistance. The vitrified dilatant polyurethane is prepared from hydroxyl polybutadiene (molecular weight is 3000), monoethoxydimethylsilane, 1, 5-pentane diboronic acid di (pinacol ester), polyether and isocyanate through chemical foaming.

The apparent density of the dilatant energy-absorbing component is 0.4 g/mL; the length of the utility model is about 20cm, the width of the upper end is about 12cm, the width of the bottom end is about 8cm, and the thickness is about 8 mm; hardness 30C. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, 10J impact energy is used, the transmitted impact force is measured to be 3.7 +/-0.1 KN, the transmitted impact force of a reference sample under the same parameters is measured to be 16.8 +/-0.3 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 78%. Elastic belts are sewn at the upper end and the lower end of the shin guard, and the dilatancy energy-absorbing component of the shin guard can be attached to the position of the shin under the elastic action of the elastic fiber fabric and the elastic belts. Based on the dynamic dilatancy of vitrification dilatancy and partial soft segment, dilatancy energy-absorbing component has wider glass transition region than traditional vitrification dilatancy, and the temperature range reaches about 60 degrees centigrade (15 to minus 55 degrees centigrade), is fit for using at 50 degrees centigrade to minus 60 degrees centigrade. The shin guard is very suitable for football players and fighting players, has the fitting degree of about 70-75 percent and has excellent impact resistance and protection performance.

Example 17

The flexible adaptive brace provided by the present embodiment is a knee brace. The knee pad is sewn by Lycra elastic fabric, and a flexible dilatancy energy-absorbing component is sewn at the knee position of the knee pad. The dilatant energy-absorbing component is based on a dual-network foam of a vitrified dilatant (Tg about 15 degrees celsius) polyurethane and an inorganic borate-bonded cross-linked polyacrylate, which is partially hollowed out and has surface grooves. The dilatancy energy-absorbing assembly is prepared from poly (octyl acrylate) with a side group containing silicon hydroxyl (the silicon hydroxyl content is 20%), inorganic boric acid, polyether and isocyanate through chemical foaming.

The apparent density of the dilatant energy-absorbing component is 0.5 g/mL; the length of the utility model is about 23cm, the width of the upper end is about 12cm, the width of the bottom end is about 8cm, and the thickness is about 10 mm; hardness 42C. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, the impact energy of 10J is used, the transmitted impact force is measured to be 4.8 +/-0.2 KN, the transmitted impact force of a reference sample under the same parameters is measured to be 15.3 +/-0.3 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 68%. Elastic belts are sewn at the upper end and the lower end of the kneepad and can be further fixed through magic tapes. Under the elastic action of the elastic fiber fabric and the elastic belts, the dilatancy energy-absorbing component of the knee pad can be tightly attached to the position of the knee. Based on vitrification dilatancy and dynamic dilatancy dual networks, the dilatancy energy-absorbing component has a wider glass transition region than traditional vitrification dilatancy, and the temperature range reaches about 60 ℃ (15 to minus 55 ℃), is suitable for being used at 50 ℃ to minus 60 ℃. The knee pad is very suitable for extreme athletes and ice and snow athletes, has the fitting degree of about 90-95%, and has excellent impact resistance and protection performance.

Example 18

The flexible adaptive brace provided by this embodiment is a meniscus brace. The fastener of protective equipment is woven by elastic fiber as an organic whole and is formed, and the knee position bonds a flexible dilatancy energy-absorbing subassembly. The protective equipment is like stocking, and the elastic band of silica gel antiskid granule is all sewed up to upper and lower both ends inboard. The dilatancy energy-absorbing component is in a four-petal-like shape, and the middle of the dilatancy energy-absorbing component is hollow; the cross section is similar to a water drop, and the periphery is thin; about 10cm long, about 8cm wide, and up to about 8mm thick; the cell has a hollow cell structure, the cell wall is made of vitrified polyurethane, part of the cell core is an inorganic silicon borate bond polymerized polysiloxane composition below the gel point, and part of the cell core is gas. The dilatant energy absorber assembly has a hardness of 30C at rest and a density of about 0.35 g/mL. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, 10J impact energy is used, the transmitted impact force is measured to be 6.3 +/-0.2 kN, the transmitted impact force of a reference sample under the same parameters is measured to be 17.2 +/-0.4 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 63%. The dilatancy energy-absorbing component in the protective tool has the vitrification characteristic, can be well molded and memorized in shape under the action of the fastener, and can be tightly attached to the periphery of a knee; the protector is not easy to shift in the process of sports, the dilatancy characteristic of the protector can cause the hardness, the strength and the like to be adaptively changed along with the sports speed, the stronger the sports is, the higher the hardness is, the higher the strength is, the protector can better massage and protect the meniscus, and the attaching degree is about 80-85%; and because the ingredients that have both a vitrification dilatancy and a dynamic dilatancy below the gel point provide viscous losses, better protection against impact can be provided.

Example 19

The flexible adaptive brace provided by this embodiment is a meniscus brace. The fastener of protective equipment is woven by elastic fiber as an organic whole and is formed, and the knee position bonds a flexible dilatancy energy-absorbing subassembly. The protective equipment is like stocking, and the elastic band of silica gel antiskid granule is all sewed up to upper and lower both ends inboard. The dilatancy energy-absorbing component is in a similar ring shape, the middle of the dilatancy energy-absorbing component is hollowed, the outer diameter is about 15cm, and the inner diameter is about 8 cm; the cross section is semicircular; the cell wall is thermosetting polysiloxane containing inorganic boric acid silicon ester bond hybrid crosslinking, part of cell core is hydrogen bond supermolecule polymer below gel point, and part of cell cyst is foamable polymer microsphere. The thermosetting polysiloxane is prepared by the reaction of hydroxyl silicone oil, inorganic boric acid, hydrogen-containing silicone oil and vinyl-terminated silicone oil; the hydrogen bond supermolecule polymer is prepared by the reaction of polyethylene glycol (molecular weight is 400), triethanolamine and ethyl isocyanate. The hardness of the flexible self-adaptive meniscus protector in a static state is 15A, and the density of the flexible self-adaptive meniscus protector is about 0.5 g/mL. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, the impact energy of 10J is used, the transmitted impact force is measured to be 8.2 +/-0.3 kN, the transmitted impact force of a reference sample under the same parameters is measured to be 15.3 +/-0.2 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 46 percent. The dilatancy energy-absorbing component in the protective tool has dynamic characteristics, so that the protective tool can be well molded and memorized in shape under the action of the fastener, and can be tightly attached to the periphery of a knee; the protector is not easy to shift in the process of sports, the dilatancy characteristic of the protector can cause the hardness, the strength and the like to be adaptively changed along with the sports speed, the stronger the sports is, the higher the hardness is, the higher the strength is, the protector can better massage and protect the meniscus, and the attaching degree is about 80-85%; and because the dynamic dilatancy component is above the gel point and below the gel point, stress dispersion and viscous loss can be provided respectively, and impact protection can be better provided.

Example 20

The flexible adaptive brace provided by the present embodiment is a knee brace. The knee pad fastener is sewn by elastic fabric attached with EVA foam, and a dilatancy energy-absorbing component is sewn on the outer side of the knee part by using mesh cloth; the total length of the kneepad is about 25 cm. The length and width of the dilatancy energy-absorbing component are about 15cm x 10cm, and the periphery of the dilatancy energy-absorbing component is chamfered; a thickness of about 8 mm; the matrix is inorganic boric acid silicon bond modified cross-linked soft SIS elastomer, wherein dispersion liquid of micron silica particles with dispersive dilatancy and PEG200 and crushed ETPU popcorn are filled. The SIS elastomer of the inorganic boric acid silicon bond modified crosslinking soft segment is prepared by SIS, a plasticizer, mercaptopropyltriethoxysilane and inorganic boric acid through chemical reaction. The dilatant energy absorbing assembly has a stiffness of 12A at rest and a density of about 0.5 g/mL. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, 10J impact energy is used, the transmitted impact force is measured to be 6.6 +/-0.2 kN, the transmitted impact force of a reference sample under the same parameters is measured to be 17.9 +/-0.3 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 62%. The base body of the dilatancy energy-absorbing assembly has dynamic dilatancy, can be well shaped under the elastic action of elastic fabric and memorize the shape of a knee, has the attaching degree of about 85-90 percent and can be tightly attached to the knee; the product also contains dispersive dilatancy; the shock absorber is not easy to displace during movement and impact, and has excellent shock absorption and impact resistance.

Example 21

The flexible self-adaptive protective equipment provided by the embodiment is a tight jacket. The close-fitting jacket is formed by blending polyester and lycra, bags with openings are sewn on the outer sides of the back, chest, rib, shoulder and elbow positions of the close-fitting jacket respectively, and an expansive and flowing foam component is filled in each bag. The foam component is characterized in that a matrix of the foam component is formed by foaming vitreous dilatant polyurethane, organic borate silicone ester bond crosslinked polyether polysiloxane copolymer crosslinking matter and crushed supercritical foaming thermoplastic polyurethane (popcorn crushed particles) are filled in the foam component, and the filling amount is about 35 wt%. The polyether polysiloxane copolymerized cross-linking material is prepared from fluorine-containing polysiloxane and amino phenyl boric acid terminated polypropylene glycol (molecular weight is 3500) through chemical reaction. The dilatancy energy-absorbing assembly is provided with a hollow structure and surface grooves and is used for reducing weight and exhausting air; the inner surface is directly bonded with a layer of polyester fabric through polyurethane during foaming, and the polyester fabric is used for improving the tearing resistance and the shock resistance and the protection performance; it has an apparent density of about 0.25g/mL and a thickness of about 8 mm; the hardness is about 10C. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, 10J impact energy is used, the transmitted impact force is measured to be 7.1 +/-0.3 kN, the transmitted impact force of a reference sample under the same parameters is measured to be 16.2 +/-0.3 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 55%. Under the action of the elastic fibers, the dilatant energy-absorbing component can be tightly attached to each part, and the shape of each part can be molded and memorized. In the exercise process, the strength, the hardness and the impact performance can be adaptively adjusted along with the exercise strength, the muscle and joint deformation amplitude and the impact strength, the fitting degree of the trousers is about 90-95%, the trousers can be conveniently used as close-fitting trousers for ice and snow, yoga, acrobatics, balls and other exercises, and excellent shock absorption and impact resistance protection effects can be provided.

Example 22

The flexible adaptive brace provided by the present embodiment is a pair of briefs. The tights are blended by polyester and lycra, and the inner side of the knee position is bonded with an expansive and flowing foam component. The foam assembly, the matrix of which is a supercritical foamed polyamide elastomer, is internally filled with an organoborate silicone-based cross-linked polysiloxane in an amount of about 35% by weight. The dilatant foam component is provided with a hollow structure and surface grooves and is used for reducing weight and exhausting air; it has an apparent density of about 0.4g/mL, a length of about 23cm, a width of up to about 12cm, and a thickness of about 8 mm; the hardness is about 10C. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, the impact energy of 10J is used, the transmitted impact force is measured to be 5.7 +/-0.2 KN, the transmitted impact force of a reference sample under the same parameters is measured to be 14.2 +/-0.3 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 59%. Under the action of elastic fibers, the dilatant energy-absorbing component can be tightly attached to the knee, and can shape and memorize the shape of the knee. In the exercise process, the strength, the hardness and the impact performance can be adaptively adjusted along with the exercise strength, the muscle and joint deformation amplitude and the impact strength, the fitting degree of the trousers is about 90-95%, the trousers can be conveniently used as close-fitting trousers for ice and snow, yoga, acrobatics, balls and other exercises, and excellent shock absorption and impact resistance protection effects can be provided.

Example 23

The flexible adaptive brace provided by the present embodiment is a pair of briefs. The tights are blended by polyester and Lycra, and the inner sides of the hip, the front of the thigh and the knee position are respectively sewed with an expansive and flowing foam component. The foam component has a matrix of foamed vitreous dilatant polyurethane, wherein supercritical foamed polyamide thermoplastic elastomer particles are filled, and the particles are internally filled with organic borate silicone bond cross-linked polyether. The organic boric acid silicon ester bond crosslinked polyether is prepared by chemical reaction of hydroxyl silicone oil (molecular weight is 500) and amino phenylboronic acid-terminated polytetrahydrofuran (molecular weight is 5000). The dilatant foam components are provided with hollow structures and surface grooves and are used for reducing weight and exhausting air; it has an apparent density of about 0.25g/mL, a thickness of about 5mm, and a hardness of about 18C. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, the impact energy of 10J is used, the transmitted impact force is measured to be 4.3 +/-0.2 kN, the transmitted impact force of a reference sample under the same parameters is measured to be 16.3 +/-0.3 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 73%. Under the action of elastic fibers, the dilatant energy-absorbing assembly can be tightly attached to the hip, thigh and knee, and can be used for shaping and memorizing the shape of each part, and the attaching degree of the dilatant energy-absorbing assembly is about 80-85%. In the motion process, can carry out self-adaptation adjustment intensity, hardness and impact property along with motion intensity, muscle and joint deformation range and also impact strength, conveniently regard as ice and snow, yoga, acrobatics, ball etc.'s close-fitting trousers dress, can provide excellent shock attenuation and shock resistance guard action.

Example 24

The flexible adaptive brace provided by this embodiment is a meniscal knee pad. The knee pad takes a sleeve integrally woven by elastic fibers (terylene and spandex) as a fastener, and a silica gel anti-slip strip is bonded on the inner side of the upper end of the sleeve. Two elastic plastic spring supports are bonded by fabric inside the sleeve along the sides of the leg for improved support and motion recovery of the leg. Bonding an oval dilatant energy-absorbing component similar to a hollowed duck egg in appearance at the knee position by using a fabric, wherein the length is about 13cm at most, and the width (bottom) is about 10cm at most; the width of the ring is about 4cm, the cross section is similar to a willow leaf shape, and the maximum thickness is about 10 mm; the base body is SEBS elastomer, and hydrocarbon plasticizer and nano fumed silica reinforced organic boric acid silicon bond crosslinked polysiloxane are filled in the base body. The dilatancy energy-absorbing assembly is prepared from an SEBS elastomer, a plasticizer and nano fumed silica-enhanced organic boric acid silicon bond crosslinked polysiloxane, and the hardness of the assembly is about 8A in a static state. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, 10J impact energy is used, the transmitted impact force is measured to be 7.7 +/-0.2 kN (the test curve is shown in the specification and attached drawing 10 (a)), the transmitted impact force of a reference sample under the same test condition is measured to be 15.8 +/-0.3 kN (the test curve is shown in the specification and attached drawing 10 (b)), and the dilatant energy-absorbing component improves the energy-absorbing performance of a product by about 49%. The dilatancy energy-absorbing component in the protective tool has dynamic characteristics, can be well molded and memorize the shape under the action of the fastener, can be tightly attached around the knee, and has the attachment degree of about 95-100%; the protector is not easy to shift in the process of sports, the dilatability characteristic of the protector can lead the hardness, the strength and the like to be adaptively changed along with the sports speed, the stronger the sports is, the higher the hardness is, the higher the strength is, the protector can better massage and protect the meniscus, and the excellent impact protection is provided.

Example 25

The flexible adaptive brace provided by the present embodiment is a knee brace. The knee pad is a sleeve sewn by lycra, the upper end and the lower end of the inner side of the sleeve are sewn with anti-slip silica gel points, and the two ends of the outer side of the sleeve are sewn with elastic bands to enhance the fixing capacity. A bladder is provided outside the knee of the sleeve for insertion of the dilatant foam assembly. Two dynamic dilatancy elastic polyurethane strip-shaped supporting pieces are bonded to the inner side of the sleeve along the two sides of the leg through fabric, so that the dilatancy supporting effect is provided, and the support and the motion recovery of the leg are adaptively improved. The wear-resistant ultra-high molecular weight polyethylene fiber fabric is sewn at the position, corresponding to the knee, of the foam component, the size of the opening of the bag is smaller than the outer edge of the fabric but slightly larger than the sewing line of the fabric and the foam, four hook and loop fastening surfaces are arranged on the periphery of the fabric, and the four hook and loop fastening surfaces are just attached to four hook and loop fastening surfaces on the periphery of the opening of the bag to fix the foam component. The foam component is prepared by dispersing expansion-flow thermoplastic polyamide particles subjected to supercritical foaming in a vitrification expansion-flow polyurethane foaming matrix. The polyamide particles in which an organoborate silicone bond based polysiloxane below the gel point is mixed. The dilatant foam component is prepared from polyamide particles for supercritical foaming, polysiloxane based on organic boric acid silicone bond and a vitreous dilatant polyurethane foaming matrix. The foam assembly has a length of about 23cm, a maximum width at the upper end of about 13cm, a width at the bottom end of about 8cm, and a thickness of about 8 mm; hardness 20C, density about 0.30 g/mL. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, the impact energy of 10J is used, the transmitted impact force is measured to be 9.5 +/-0.3 kN, the transmitted impact force of a reference sample under the same parameters is measured to be 20.3 +/-0.4 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 53 percent. The dilatant foam component has dynamic dilatancy and vitrification dilatancy and has good creep property and plasticity capability. The knee cap can be tightly attached to the knee under the elastic action of the sleeve, the shape of the knee is memorized, and the attaching degree of the knee cap is about 80-85%; during movement or activity, the knee joint can be subjected to self-adaptive change according to the movement intensity, amplitude and impact speed, and the knee joint is subjected to shock absorption and impact resistance protection.

Example 26

The flexible adaptive brace provided by the present embodiment is a wrist brace. The inner layer of the wrist guard is made of sweat-absorbent fabric (cotton yarn), the middle layer of the wrist guard is a hollowed-out dilatability thermoplastic elastomer film, the outer layer of the wrist guard is made of elastic fabric (nylon and spandex elastic fiber), and the three layers of the wrist guard are sewn; the length of the whole wrist guard is about 12 cm. The dilatant film having a thickness of about 1 mm; the hollow holes are circular, and the diameter of each hollow hole is about 5 mm; the hollow area accounts for about 50% of the total area of the film; comprising a thermoplastic polyurethane matrix and dispersed therein a dynamically covalently crosslinked polyurethane; the soft segment of the dynamic covalent crosslinking polyurethane is crosslinked through a dynamic covalent organic boric acid silicon ester bond. The dynamic covalent crosslinking polyurethane is prepared by carrying out chemical reaction on hydroxypropyl polysiloxane, HDI and aminophenylboronic acid. The dilatant film is prepared from thermoplastic polyurethane and dynamic covalent cross-linked polyurethane, and the flexible self-adaptive wrist guard is prepared from the film, wherein the hardness of the wrist guard is about 30A in a static state. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, 10J impact energy is used, the transmitted impact force is measured to be 11.2 +/-0.3 kN, the transmitted impact force of a reference sample under the same parameters is measured to be 22.1 +/-0.4 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 49%. The wrist protector has good fixing performance, can memorize the shape of the wrist, has the attaching degree of about 80-85%, can be adaptively changed according to the speed and amplitude of the movement of the wrist, and plays an excellent role in protection, including reduction of sprain and impact injury.

Example 27

The flexible adaptive brace provided by the present embodiment is a knee brace. The fastening component of the kneepad comprises a sleeve made of lycra and elastic bandages at the upper end and the lower end of the sleeve, and the bandages are fastened by passing through a plastic buckle and then fixed by a magic tape. Anti-slip silica gel strips are sewn at two ends inside the sleeve, and a foaming dilatancy energy-absorbing component is sewn at the knee position by sweat-absorbing elastic fabric. The dilatant energy-absorbing component has a length of about 23cm, a maximum width at the upper end of about 12cm, a width at the bottom end of about 8cm, and a thickness of about 10 mm. The dilatancy energy-absorbing component is formed by compression molding supercritical foamed thermoplastic polyurethane particles (popcorn shape) through water vapor, and soft sections of the polyurethane particles also contain organic borate silicone ester bond dynamic covalent crosslinking. The thermoplastic polyurethane particles are prepared by chemical reaction of polyethylene glycol (molecular weight is 3000) with double bonds on the side group, ethoxy dimethyl silane, 1, 5-pentane diborate di (pinacol), MDI and glycerol. The dilatant energy-absorbing component has a hardness of 35C in a rest state; the density was about 0.35 g/mL. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, 10J impact energy is used, the transmitted impact force is measured to be 10.2 +/-0.4 KN, the transmitted impact force of a reference sample under the same parameters is measured to be 19.8 +/-0.3 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 48%. The dilatancy energy-absorbing component has dynamic dilatancy, and has creep and plasticity capability. The knee cap can be tightly attached to the knee under the elastic action of the sleeve, the shape of the knee is memorized, and the attaching degree of the knee cap is about 75-80%; during movement or activity, the knee joint can be subjected to self-adaptive change according to the movement intensity and the impact speed, and the knee joint is subjected to shock absorption and impact resistance protection. The inner side of the sleeve is bonded with two dilatant elastic polyurethane spring supporting pieces with vitrification through fabric along the positions on two sides of the leg, so that the supporting effect with dilatability is provided, and the support and the motion recovery of the leg are adaptively improved.

Example 28

The flexible adaptive brace provided by this embodiment is an ankle brace. The protective clothing is woven by spandex and dilatancy rubber silk. The rubber filament is formed by common covalent crosslinking and dynamic covalent crosslinking, wherein the common covalent crosslinking is S-C bond, and the dynamic covalent crosslinking contains weak dynamic disulfide and polysulfide bond and strong dynamic covalent aminobenzene boric acid monoester. The rubber filament is prepared by reacting and extruding unvulcanized natural rubber, aminobenzene boric acid, thioglycerol and sulfur powder. The flexible self-adaptive ankle protector, wherein the amino phenyl boronic acid monoester with strong dynamic property endows the rubber silk with excellent dilatancy. Through the spandex with bloated fluidity rubber silk mixes and weaves, forms banded ankle protective equipment, and the magic subsides are made up to protective equipment area end for fix after the winding ankle. The brace has a length of about 40cm and a width of about 6 cm. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, the impact energy of 10J is used, the transmitted impact force is measured to be 8.9 +/-0.4 kN, the transmitted impact force of a reference sample under the same parameters is measured to be 16.3 +/-0.3 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 45%. Through the elasticity of spandex and the elasticity of rubber silk itself, the ankle can be wrapped up in well to the protective equipment after the winding, and rubber band wherein still has certain creep nature and the ability of moulding, can remember the ankle shape, and its laminating degree is about 80-85%, effectively protects the ankle when the motion, reduces and sprains and the impact injury.

Example 29

The flexible adaptive brace provided by the present embodiment is an elbow brace. The fastener of the elbow pad is a cylindrical fabric integrally woven by elastic fibers (nylon and latex yarn), and the inner side of the elbow is sewed with an independent fish scale-shaped sheet material dilatability energy absorption component through the sweat absorption elastic fabric. The fish scale-like sheets combined to a fish scale-like impact-resistant component having a total length of about 15cm, a width of about 10cm and a thickness of about 5 mm; since the sheets are independent of each other, the entire impact resistant assembly is free to flex. The sheet is formed by cutting thermoplastic polyamide sponge filled with organic borate silicone bond polysiloxane-polyether copolymer and subjected to supercritical foaming, the filling amount reaches 45 wt%, and the apparent density is 0.3 g/mL. The dilatancy energy-absorbing component is prepared from thermoplastic polyamide and polysiloxane-polyether copolymer with organic boric acid and silicone bond by using a supercritical foaming technology. The dilatant energy absorber component has a hardness of 29C at rest and a density of about 0.41 g/mL. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, the impact energy of 10J is used, the transmitted impact force is measured to be 8.1 +/-0.3 kN, the transmitted impact force of a reference sample under the same parameters is measured to be 18.5 +/-0.3 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 56%. Due to the fact that a large number of dynamic covalent polymers are filled, the thermoplastic polyamide sponge has certain plasticity, and can have the capacity of memorizing the shape of an elbow while having high resilience. And because the density is low, the product is very light and has excellent close-fitting impact resistance protection performance, and the fitting degree is about 70-75%. Is very suitable for the self-adaptive protection of basketball, volleyball and other sports processes.

Example 30

The flexible adaptive brace that this embodiment provided is socks. The socks are formed by blending the elastic fibers and the aramid fibers and have good wear resistance. The sock bottom is coated with a dilatancy energy-absorbing component layer, and the dilatancy energy-absorbing component is formed by directly coating and curing the composition of vitrified dilatancy crosslinked polyurethane filling nano fumed silica containing m-vinylamine ester crosslinking and dynamic covalent crosslinking thermoplastic polyolefin based on dynamic dilatancy of aminophenylboronic acid diester bonds at the sock bottom and can be directly and firmly bonded at the sock bottom. The dynamic covalent crosslinking thermoplastic polyolefin is prepared by reacting 1, 2-diol-containing polycyclooctene (diol content is 30%) with o-amino-1, 4-phenyl diboronic acid. The thickness of the dilatancy energy-absorbing component layer is about 4mm, and the dilatancy energy-absorbing component layer is provided with grooves and patterns for skid prevention; the hardness was 5A. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, the impact energy of 10J is used, the transmitted impact force is measured to be 9.4 +/-0.2 kN, the transmitted impact force of a reference sample under the same parameters is measured to be 24.3 +/-0.3 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 60%. Under the tensile force of the sock elastic fiber, the vitrification and dynamic dilatancy energy-absorbing assembly can creep and mold, and can be well attached to the sole, and the attachment degree is about 95-100%; the material has a solid structure and sufficient toughness, and is hardened during impact; in addition, the nano fumed silica is contained, so that the strength and the impact resistance are higher; the aramid fiber in the fabric is combined, so that the sole has very good puncture resistance and wear resistance. The socks can also be used as simple shoes, and are suitable for diving and beach walking or used as dance shoes and the like.

Example 31

The flexible adaptive brace provided by the present embodiment is a glove. The glove is formed by weaving elastic fibers, and the finger part is half finger length. The inner side of the fingers and the palm part are coated with a dilatant energy-absorbing component layer. The dilatancy energy-absorbing component is vitreous dilatancy polyurethane, wherein dynamic dilatancy polyolefin below the gel point is filled, and the dilatancy polyolefin is polymerized through amino phenylboronic acid monoester bonds. The dynamic dilatant polyolefin below the gel point is prepared by reacting hydroxy hydrogenated polybutadiene (molecular weight 3000) with amino terephthalic diboronic acid. The dilatant energy absorbing component layer has a thickness of about 1mm and a stiffness of about 25A. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, the impact energy of 10J is used, the transmitted impact force is measured to be 12.8 +/-0.2 kN, the transmitted impact force of a reference sample under the same parameters is measured to be 29.4 +/-0.3 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 56%. The dilatancy energy-absorbing component in the glove can be tightly attached to fingers and palms under the tension of elastic fibers, the attachment degree of the dilatancy energy-absorbing component is about 85-90%, the dilatancy energy-absorbing component is favorable for shaping and shape memory during gripping, the fingers and the palms are kept protected, and particularly impact resistance protection can be realized during rapid gripping.

Example 32

The flexible adaptive brace provided by the present embodiment is a police dog/military dog back guard. The back protector is formed by weaving elastic fibers, wherein the dilatant foam component is sewn in the back protector. The dilatancy energy-absorbing component matrix is vitreous dilatancy polyurethane foam, and gel particles containing dispersive dilatancy dispersion liquid are filled in the matrix. The gel particles are poly (n-butyl acrylate) gel particles of nano silicon dioxide PEG200 dispersion liquid. The dilatant energy-absorbing assembly has a stiffness of 22C. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, 10J impact energy is used, the transmitted impact force is measured to be 7.2 +/-0.3 kN, the transmitted impact force of a reference sample under the same parameters is measured to be 18.8 +/-0.3 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 61%. The back protector can be worn on the back of the police dog/the military dog through the elastic band and the magic tape. Based on the creep property and plasticity of the dilatant foam, the police dog/military dog protective pad can be tightly attached to the back of a police dog/military dog, the attachment degree of the police dog/military dog protective pad is about 75-80%, and the police dog/military dog protective pad can be adaptively adjusted along with the movement of the police dog/military dog, so that the police dog/military dog is effectively protected.

Example 33

The flexible self-adaptive protective equipment provided by the embodiment is a robot knee pad. The kneepad is formed by 3D integrative printing, adopts many materials to print. The knee pad can be locked at the knee (or similar pivot location) of the biped robot by screws. The middle part of the kneepad is provided with an expansive flow energy-absorbing component, and the other parts of the kneepad are provided with an elastomer. The dilatant energy-absorbing component has a cubic internal cell structure, wherein organopolysiloxane polymerized by organic borate silicone bonds below gel points is filled in the cells, and the cell walls are thermoplastic polyurethane with coumarin side groups. The preparation method of the organic boric acid silicone ester bond polymerized polysiloxane below the gel point is prepared by the reaction of hydroxyl-terminated silicone oil (molecular weight of 3500) and 1, 7-heptane diboronic acid di (pinacol ester); the thermoplastic polyurethane with the lateral coumarin group is prepared by the reaction of hydroxyl-terminated polybutadiene, 3-mercapto coumarin and HDI. 3D printing is carried out by taking the prepared organic boric acid silicone ester bond polymerized polysiloxane below the gel point and the thermoplastic polyurethane with the lateral group of coumarin as 3D printing raw materials, and ultraviolet illumination is used for crosslinking the coumarin to prepare the dilatability energy-absorbing component, wherein the hardness of the dilatability energy-absorbing component is about 50A. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, 10J impact energy is used, the transmitted impact force is measured to be 6.6 +/-0.2 kN, the transmitted impact force of a reference sample under the same parameters is measured to be 25.3 +/-0.3 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 74%. The polymer components of the cell walls of the dilatancy energy-absorbing component are the same as those of other elastomers, and can be further crosslinked through ultraviolet illumination after 3D printing, so that better bonding force and strength between layers can be obtained, self-repairing operation can be performed through ultraviolet light with different wavelengths, and repairing after damage is facilitated. The kneepad can be molded and attached according to the shape of the knee (or a similar rotating shaft part) of the robot, the attaching degree of the kneepad is about 70-75%, and the kneepad can play an excellent impact-resistant protection role.

Example 34

The flexible adaptive brace provided by the present embodiment is a visor. The face guard is formed by printing through an X-3D printing technology, so that the face guard can be suitable for the face of a user, the face dilatancy energy-absorbing assembly is printed out through the X-3D printing technology according to design customization, and the face dilatancy energy-absorbing assembly and the fasteners are printed out together during printing to form an integrated face guard, necessary hollow-out design is carried out on eyes and nose parts, and then the face guard is wrapped by fabric, so that the face guard is more skin-friendly and comfortable. The dilatancy energy-absorbing component is a foamed SEBS thermoplastic elastomer, wherein the foamed polymer microspheres and nano fumed silica reinforced inorganic boric acid silicon bond crosslinked polysiloxane are filled. The method comprises the steps of firstly preparing a foamable SEBS elastomer by using an SEBS elastomer, a plasticizer, nano fumed silica reinforced inorganic boric acid silicon bond crosslinked polysiloxane and foamable polymer microspheres, and then preparing the dilatancy energy-absorbing component by using the prepared foamable SEBS elastomer as a 3D printing raw material and using an X-3D printing technology. The dilatant energy-absorbing component is customized according to a 3D scanned image of the user's face, has a density of 0.6g/mL, and has a hardness of about 13C in the resting state. The impact test is carried out on the dilatant energy-absorbing component part of the protector according to the EN1621-2012 standard method, the impact energy of 10J is used, the transmitted impact force is measured to be 4.6 +/-0.1 kN, the transmitted impact force of a reference sample under the same parameters is measured to be 17.1 +/-0.3 kN under the same test conditions, and the dilatant energy-absorbing component improves the energy-absorbing performance of the product by about 71%. Because the fastener and the dilatancy energy-absorbing assembly are a whole, and the fitness of the fastener and the dilatancy energy-absorbing assembly is about 90-95%, the size is easily controlled during 3D printing, a user is not prone to shifting during wearing, and impact resistance protection is more accurately provided for a face.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A flexible adaptive protector comprising a dilatant energy absorbing component of a dilatant polymer, said dilatant energy absorbing component being combined with at least a fastener and/or a shaping element to form said protector which is wearable; the dilatant energy absorbing assembly has a hardness of no greater than 90A or 70C or 50D; under the action of the fastener and/or the shaping piece, the attaching degree of the dilatant energy-absorbing assembly and the protected part is not lower than 30%.

2. The flexible adaptive protector according to claim 1, wherein the flexible adaptive protector comprises a knee pad, an elbow pad, a helmet, a shoulder pad, a back pad, a chest pad, a rib pad, a hip pad, an ankle pad, a wrist pad, a tail vertebra, a meniscus pad, a fist cover, a palm pad, a finger pad, a toe pad, a patella pad, a neck pad, a shin pad, a head band, a face guard, a head cover, a panty protector, a tights protector, an animal protector, an antique protector, an artwork protector, a musical instrument protector, a sports equipment protector, a medical equipment protector, a drug protector, an aircraft protector, a spacecraft protector, a light weapon protector, a naval ship protector, a vehicle protector, an electronic product protector, and a robot protector.

3. The flexible adaptive brace of claim 1 wherein the dilatant polymer is selected from at least one of a dynamic dilatant polymer, a vitreous dilatant polymer, and an entangled dilatant polymer.

4. The flexible adaptive brace of claim 1 wherein the fastener is selected from the group consisting of a stretch band with stretch function, an elastic fabric, a rib, a belt, a leather strip, a spring, preferably a three dimensional knit sleeve, a lycra sleeve, an elastomeric stretch band.

5. The flexible adaptive brace of claim 1 wherein the shape-imparting member is selected from the group consisting of cloth, elastic fabric, other fabric, three-dimensional woven material, 3D printed material, open or semi-open cell foam, leather, non-woven fabric, thread, spring, tube, plate, strip, film.

6. The flexible adaptive brace of claim 1 wherein the dilatant energy absorbing assembly has a hardness no greater than 30A or 15C or 10D.

7. The flexible adaptive brace of claim 1 wherein the dilatant energy absorber component has a fit to the protected area of no less than 70%.

8. The flexible adaptive brace of claim 1 wherein the overall shape of the dilatant energy absorbing component is selected from the group consisting of circular, quasi-circular, elliptical-circular, quasi-elliptical-circular, plate, strip, block, sheet, cap, tile, petal, and combinations thereof; the fine three-dimensional geometrical configuration of the dilatant energy-absorbing component is selected from the group consisting of a three-dimensional through type, an inwardly concave angular type, a convex point type, a wave type, a groove type, a fish scale type, a hexagonal plate type, a triangular plate type, a diamond plate type, a disc type and a combination thereof.

9. The flexible adaptive brace of claim 1 wherein the dilatant energy absorbing member has an internal structure selected from the group consisting of a purely solid structure, a purely hollow structure, and a cellular structure.

10. The flexible adaptive brace of claim 1 wherein the brace is selected from meniscus braces having one of the following structures:

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, and a dilatant energy-absorbing component formed by dilatant polymer is contained in the sleeve, and the dilatant energy-absorbing component is positioned at the position of a knee; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy based on a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy based on a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyurethane based on the dynamic dilatancy of a dynamic covalent bond containing boron; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyurethane based on the dynamic dilatancy of a dynamic covalent bond containing boron; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy based on a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy based on a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyurethane based on dynamic dilatancy of a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyurethane based on dynamic dilatancy of a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cell structure with dynamic dilatancy in the cell walls and/or cell core; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cell structure with dynamic dilatancy in the cell walls and/or cell core; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cell structure having a cell wall and/or cell core with dynamic dilatancy based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cell structure having a cell wall and/or cell core with dynamic dilatancy based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polysiloxane based on the dynamic dilatancy of a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure having a cell wall and/or cell core comprising a hybrid dynamic covalently cross-linked polysiloxane that is dynamic dilatant based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyester based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyester based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy, and the cell wall has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy, and the cell wall has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, and the cell wall has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, and the cell wall has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell core of which comprises a dynamic covalent and/or hybrid dynamic covalent cross-linked polysiloxane based on the dynamic dilatancy of a boron-containing dynamic covalent bond, the cell walls of which have no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure having a core of dynamically covalently and/or hybrid covalently cross-linked polysiloxane that is dynamically dilatant based on boron-containing dynamic covalent bonds, the walls of which do not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of which contains a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of which has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of which contains a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of which has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of the component comprises hybrid dynamic crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of the component comprises hybrid dynamic crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of which comprises a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of which has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of which comprises a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of which has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy, and the cell wall has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy, and the cell wall has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, and the cell wall has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, and the cell wall has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell core of which has hybrid dynamic covalent cross-linked polysiloxane that is dynamic dilatant based on boron-containing dynamic covalent bonds, and the cell wall of which has dilatant properties; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the hybrid dynamic crosslinked thermoplastic polyurethane has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the hybrid dynamic crosslinked thermoplastic polyurethane has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 30-40A or 15-20C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 60%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cell structure, the cell core of which has dynamic dilatancy and is a dynamically covalently crosslinked and/or non-crosslinked polymer, the cell wall of which has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cell structure, the cell core of which has dynamic dilatancy and is a dynamically covalently crosslinked and/or non-crosslinked polymer, the cell wall of which has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, and the cell wall has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, and the cell wall has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell core of which comprises a dynamic covalent and/or hybrid dynamic covalent cross-linked polysiloxane based on the dynamic dilatancy of a boron-containing dynamic covalent bond, the cell walls of which have dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the core of which has a dynamic covalent and/or hybrid dynamic covalent cross-linked polysiloxane that is dynamic dilatant based on boron-containing dynamic covalent bonds, the cell walls of which have dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the hybrid dynamic crosslinked thermoplastic polyurethane has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the hybrid dynamic crosslinked thermoplastic polyurethane has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 40-50A or 20-25C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not lower than 50%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell core of which has dynamic dilatancy and is a dynamically covalently crosslinked and/or non-crosslinked polymer, the cell walls of which have no dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell core of which has dynamic dilatancy and is a dynamically covalently crosslinked and/or non-crosslinked polymer, the cell walls of which have no dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall has no dilatancy and is selected from the combination of common covalent crosslinked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall has no dilatancy and is selected from the combination of common covalent crosslinked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains dynamic covalent and/or hybrid dynamic covalent cross-linked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic covalent and/or hybrid dynamic covalent cross-linked polysiloxane which is dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall of the cell has no dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent crosslinked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent crosslinked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from the combination of common covalent cross-linked polyolefin, polyether, polyester, polyacrylate and polysiloxane, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy and is a hybrid covalent/supramolecular cross-linked polymer, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a hybrid covalent/supramolecular cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy and is a hybrid covalent/supramolecular cross-linked polymer, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a hybrid covalent/supramolecular cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is of a solid cell structure and contains hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from hybrid crosslinked polymers containing hybrid crosslinked polymers selected from hydrogen bonds, metal-ligands, ionic interaction crosslinking and common covalent crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is of a solid cell structure and contains hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from hybrid crosslinked polymers containing hybrid crosslinked polymers selected from hydrogen bonds, metal-ligands, ionic interaction crosslinking and common covalent crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component has hybrid dynamic covalent cross-linked polysiloxane with dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid cross-linked polymers containing hybrid cross-linked polymers selected from the group consisting of hydrogen bonds, metal-ligands, ionic interaction cross-links and common covalent cross-links, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component has a hybrid dynamic covalent crosslinking polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from hybrid crosslinking polymers including but not limited to hydrogen bonds, metal-ligands, ionic interaction crosslinking and common covalent crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component has a hybrid dynamic covalent crosslinking polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from hybrid crosslinking polymers including but not limited to hydrogen bonds, metal-ligands, ionic interaction crosslinking and common covalent crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from hybrid cross-linked polymers comprising hydrogen bonds, metal-ligands, ionic interaction cross-links and common covalent cross-links, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from hybrid cross-linked polymers comprising hydrogen bonds, metal-ligands, ionic interaction cross-links and common covalent cross-links, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component is a hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid crosslinked polymers containing hybrid crosslinked polymers selected from the group consisting of but not limited to hydrogen bonds, metal-ligands, ionic interaction crosslinks and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component is a hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid crosslinked polymers containing hybrid crosslinked polymers selected from the group consisting of but not limited to hydrogen bonds, metal-ligands, ionic interaction crosslinks and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is a hybrid dynamically crosslinked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid crosslinked polymers containing hybrid crosslinked polymers selected from the group consisting of but not limited to hydrogen bonds, metal-ligands, ionic interaction crosslinks and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is a hybrid dynamically crosslinked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid crosslinked polymers containing hybrid crosslinked polymers selected from the group consisting of but not limited to hydrogen bonds, metal-ligands, ionic interaction crosslinks and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component is a hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from hybrid cross-linked polymers containing hybrid cross-linked polymers selected from the group consisting of hydrogen bonds, metal-ligands, ionic interaction cross-links and common covalent cross-links, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component is a hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from hybrid cross-linked polymers containing hybrid cross-linked polymers selected from the group consisting of hydrogen bonds, metal-ligands, ionic interaction cross-links and common covalent cross-links, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy and is a hybrid dynamic covalent/supramolecular cross-linked polymer, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a hybrid dynamic covalent/supramolecular cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of adhesion of the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a hybrid dynamic covalent/supramolecular cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall has no dilatancy and is selected from hybrid cross-linked polymers containing a group including but not limited to hydrogen bonds, metal-ligands, ionic interaction cross-links and dynamic covalent cross-links, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall has no dilatancy and is selected from hybrid cross-linked polymers containing a group including but not limited to hydrogen bonds, metal-ligands, ionic interaction cross-links and dynamic covalent cross-links, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component is a solid cellular structure and contains hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid crosslinked polymers containing hybrid crosslinked polymers selected from the group consisting of but not limited to hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component has a hybrid dynamic covalent crosslinked polysiloxane with dynamic dilatancy based on boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid crosslinked polymers containing the elements selected from the group consisting of hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent crosslinks, the dilatancy energy-absorbing component has a hardness of 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected site is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component is a hybrid dynamic covalent crosslinked polyolefin with dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from hybrid crosslinked polymers containing dynamic covalent crosslinks including but not limited to hydrogen bonds, metal-ligands, ionic interactions crosslinks and dynamic covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component is a hybrid dynamic covalent crosslinked polyolefin with dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from hybrid crosslinked polymers containing dynamic covalent crosslinks including but not limited to hydrogen bonds, metal-ligands, ionic interactions crosslinks and dynamic covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component comprises a hybrid dynamically crosslinked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid crosslinked polymers comprising hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component comprises a hybrid dynamically crosslinked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid crosslinked polymers comprising hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component is a hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid crosslinked polymers containing hybrid crosslinked polymers selected from the group consisting of, but not limited to, hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component is a hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid crosslinked polymers containing hybrid crosslinked polymers selected from the group consisting of, but not limited to, hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component comprises a dynamic dilatancy hybrid dynamically crosslinked thermoplastic polyamide based on a boron-containing dynamic covalent bond, the cellular wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid crosslinked polymers comprising hydrogen bonds, metal-ligands, ionic interactions crosslinks and dynamic covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected site is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component comprises a dynamic dilatancy hybrid dynamically crosslinked thermoplastic polyamide based on a boron-containing dynamic covalent bond, the cellular wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid crosslinked polymers comprising hydrogen bonds, metal-ligands, ionic interactions crosslinks and dynamic covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected site is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of the dilatancy energy-absorbing component is of a solid cellular structure and comprises a dynamic dilatancy hybrid dynamic cross-linked thermoplastic polyester based on a dynamic boron-containing covalent bond, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid cross-linked polymers comprising hydrogen bonds, metal-ligands, ionic interaction cross-links and dynamic covalent cross-links, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of the dilatancy energy-absorbing component is of a solid cellular structure and comprises a dynamic dilatancy hybrid dynamic cross-linked thermoplastic polyester based on a dynamic boron-containing covalent bond, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid cross-linked polymers comprising hydrogen bonds, metal-ligands, ionic interaction cross-links and dynamic covalent cross-links, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy and is a hybrid common covalent/dynamic covalent/supramolecular cross-linked polymer, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a hybrid common covalent/dynamic covalent/supramolecular cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a hybrid common covalent/dynamic covalent/supramolecular cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall has no dilatancy and is selected from hybrid cross-linked polymers containing dynamic covalent and common covalent cross-links and selected from hydrogen bonds, metal-ligands, ionic interaction cross-links and dynamic covalent and common covalent cross-links, the dilatancy energy-absorbing component has a hardness of 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall has no dilatancy and is selected from hybrid cross-linked polymers containing dynamic covalent and common covalent cross-links and selected from hydrogen bonds, metal-ligands, ionic interaction cross-links and dynamic covalent and common covalent cross-links, the dilatancy energy-absorbing component has a hardness of 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is of a solid cell structure and contains hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from hybrid crosslinked polymers containing dynamic covalent and common covalent crosslinks and including but not limited to hydrogen bonds, metal-ligand, ionic interaction crosslinks, and dynamic covalent and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component has a hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component has no dilatancy and is selected from the group consisting of hybrid crosslinked polymers including but not limited to hydrogen bonds, metal-ligands, ionic crosslinks and dynamic covalent and common covalent crosslinks, the dilatancy energy-absorbing component has a hardness of 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected site is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component has a hybrid dynamic covalent crosslinking polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from hybrid crosslinking polymers containing dynamic covalent and common covalent crosslinks, including but not limited to hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component has a hybrid dynamic covalent crosslinking polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from hybrid crosslinking polymers containing dynamic covalent and common covalent crosslinks, including but not limited to hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is of a solid cell structure and contains hybrid dynamic crosslinked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid crosslinked polymers containing dynamic covalent and common covalent crosslinks and selected from the group consisting of hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is of a solid cell structure and contains hybrid dynamic crosslinked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid crosslinked polymers containing dynamic covalent and common covalent crosslinks and selected from the group consisting of hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component comprises hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid crosslinked polymers comprising hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cellular core of the dilatancy energy-absorbing component comprises hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cellular wall of the dilatancy energy-absorbing component does not have dilatancy and is selected from hybrid crosslinked polymers comprising hydrogen bonds, metal-ligands, ionic interaction crosslinks and dynamic covalent and common covalent crosslinks, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is a hybrid dynamically crosslinked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid crosslinked polymers containing dynamic covalent and common covalent crosslinks, including but not limited to hydrogen bonds, metal-ligands, ionic interactions crosslinks, and dynamic covalent and common covalent crosslinks, the dilatancy energy-absorbing component has a hardness of 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected site is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is a hybrid dynamically crosslinked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component has no dilatancy and is selected from hybrid crosslinked polymers containing dynamic covalent and common covalent crosslinks, including but not limited to hydrogen bonds, metal-ligands, ionic interactions crosslinks, and dynamic covalent and common covalent crosslinks, the dilatancy energy-absorbing component has a hardness of 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to the protected site is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is of a solid cell structure and comprises a hybrid dynamic crosslinked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the cell structure does not have dilatancy and is selected from hybrid crosslinked polymers comprising hydrogen bonds, metal-ligands, ionic interaction crosslinking and dynamic covalent and common covalent crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is of a solid cell structure and comprises a hybrid dynamic crosslinked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the cell structure does not have dilatancy and is selected from hybrid crosslinked polymers comprising hydrogen bonds, metal-ligands, ionic interaction crosslinking and dynamic covalent and common covalent crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy and is a dynamic covalent cross-linked polymer, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a dynamic covalent cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is dynamic covalent cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a dynamic covalent cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a dynamic covalent cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a dynamic covalent crosslinked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component is a hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a dynamic covalent crosslinked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is dynamic covalent cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is dynamic covalent cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is dynamic covalent crosslinked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is dynamic covalent crosslinked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a dynamic covalent crosslinked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a dynamic covalent crosslinked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is dynamic covalent crosslinked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of adhesion of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is dynamic covalent crosslinked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of adhesion of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is dynamic covalent cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is dynamic covalent cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy and is a hybrid common covalent/dynamic covalent/supramolecular cross-linked polymer, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a supramolecular cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy, the cell wall of the dilatancy energy-absorbing component does not have dilatancy and is a supermolecular cross-linked polymer, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of attachment of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall has no dilatancy and is selected from supermolecule cross-linked polymers containing hydrogen bonds, metal-ligands, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall has no dilatancy and is selected from supermolecule cross-linked polymers containing hydrogen bonds, metal-ligands, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from supermolecule crosslinked polymers including but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component has hybrid dynamic covalent crosslinked polysiloxane with dynamic dilatancy based on boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from supermolecular crosslinked polymers containing the dynamic dilatancy based on boron-containing dynamic covalent bonds, the supermolecular crosslinked polymers include but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic covalent crosslinked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from supermolecule crosslinked polymers including but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic covalent crosslinked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from supermolecule crosslinked polymers including but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization crosslinking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from supermolecule cross-linked polymers including but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from supermolecule cross-linked polymers including but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is a hybrid dynamic cross-linked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from supermolecule cross-linked polymers including but not limited to hydrogen bonds, metal-ligands, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component is a hybrid dynamic cross-linked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component has no dilatancy and is selected from supermolecule cross-linked polymers including but not limited to hydrogen bonds, metal-ligands, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component to a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from supermolecule cross-linked polymers including but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from supermolecule cross-linked polymers including but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and a protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises dynamic dilatancy hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from supermolecule cross-linked polymers including but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises dynamic dilatancy hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, the cell wall of the component does not have dilatancy and is selected from supermolecule cross-linked polymers including but not limited to hydrogen bonds, metal-ligand, ionic action, phase separation and crystallization cross-linking, the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit of the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy and is a hybrid covalent/supramolecular cross-linked polymer, and the cell wall of the energy-absorbing component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the dilatancy energy-absorbing component has dynamic dilatancy and is a hybrid covalent/supramolecular cross-linked polymer, and the cell wall of the energy-absorbing component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent crosslinked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell core of which has hybrid dynamic covalent cross-linked polysiloxane that is dynamic dilatant based on boron-containing dynamic covalent bonds, and the cell wall of which has dilatant properties; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the hybrid dynamic crosslinked thermoplastic polyurethane has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; the dilatancy energy-absorbing component is of a solid cell structure, the cell core of the dilatancy energy-absorbing component contains hybrid dynamic crosslinked thermoplastic polyurethane based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the hybrid dynamic crosslinked thermoplastic polyurethane has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component has dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which have dynamic dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which have dynamic dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which contain dynamic dilatancy based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which contain dynamic dilatancy based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polysiloxane based on the dynamic dilatancy of a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a hollow cell structure having a cell wall and/or cell core comprising a hybrid dynamic covalently cross-linked polysiloxane that is dynamic dilatant based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which comprise a hybrid dynamic covalently cross-linked polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which comprise a hybrid dynamic covalently cross-linked polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which comprise a hybrid dynamically crosslinked thermoplastic polyester based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which comprise a hybrid dynamically crosslinked thermoplastic polyester based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which contain dynamic dilatancy based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow cell structure, the cell walls and/or cell cores of which contain dynamic dilatancy based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow hybrid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polysiloxane based on the dynamic dilatancy of a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a hollow hybrid cellular structure having a cell wall and/or cell core comprising a hybrid dynamically covalently cross-linked polysiloxane that is dynamically dilatant based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy absorbing component is a hollow hybrid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a hollow hybrid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy absorbing component is a hollow hybrid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a hollow hybrid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy absorbing component is a hollow hybrid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a hollow hybrid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy absorbing component is a hollow hybrid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy absorbing component is a hollow hybrid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a similar ring type meniscus protection function, and the dilatancy energy-absorbing component is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow hybrid cell structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyester based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector takes a sleeve formed by elastic fabric as a fastener, wherein the meniscus protector contains a dilatancy energy-absorbing component with a ring-like meniscus protection function, and the dilatancy energy-absorbing component is not completely hollowed out at the knee position; wherein the dilatant energy-absorbing component is a hollow hybrid cell structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyester based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector comprises an elastic band as a fastener and common cloth as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector comprises an elastic band as a fastener and an elastic fabric as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

The meniscus protector comprises an elastic band as a fastener and a three-dimensional woven material as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector comprises an elastic band as a fastener and 3D printing materials as endowing pieces; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector comprises an elastic band as a fastener and an open-cell or semi-open-cell foam material as an endowing piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy based on a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

The meniscus protector comprises an elastic band as a fastener and leather as an endowing piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy based on a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector comprises an elastic band as a fastener and non-woven fabrics as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

The meniscus protector comprises an elastic band as a fastener and a spring as an endowing piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector comprises an elastic band as a fastener and an elastic fabric as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

The meniscus protector comprises an elastic band as a fastener and a film as an endowing piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector comprises an elastic band as a fastener and an elastic fabric as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

The meniscus protector comprises an elastic band as a fastener and an elastic fabric as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector comprises an elastic band as a fastener and an elastic fabric as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyurethane based on the dynamic dilatancy of a dynamic covalent bond containing boron; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

The meniscus protector comprises an elastic band as a fastener and an elastic fabric as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is of a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyurethane based on the dynamic dilatancy of a dynamic covalent bond containing boron; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector comprises an elastic band as a fastener and an elastic fabric as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

The meniscus protector comprises an elastic band as a fastener and an elastic fabric as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector comprises an elastic band as a fastener and an elastic fabric as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

The meniscus protector comprises an elastic band as a fastener and an elastic fabric as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is a pure solid structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing assembly is not more than 10A or 5C, and the degree of fit between the dilatancy energy-absorbing assembly and the protected part is not less than 90%; it may optionally contain other accessories;

the meniscus protector comprises an elastic fabric as a fastener and common cloth as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector comprises an elastic fabric as a fastener and an endowing piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector comprises an elastic fabric as a fastener and a three-dimensional woven material as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy based on a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector comprises an elastic fabric as a fastener and a 3D printing material as an endowing piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is dynamic dilatancy based on a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector comprises elastic fabric as a fastener and open-cell or semi-open-cell foam material as an endowing piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector comprises an elastic fabric as a fastener and leather as an endowing piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polysiloxane based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector comprises an elastic fabric as a fastener and a non-woven fabric as an endowing piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector comprises an elastic fabric as a fastener and a spring as an endowing piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector comprises an elastic fabric as a fastener and a film as an endowing piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector comprises an elastic fabric as a fastener and an endowing piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector comprises an elastic fabric as a fastener and an endowing piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyurethane based on dynamic dilatancy of a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector comprises an elastic fabric as a fastener and an endowing piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyurethane based on dynamic dilatancy of a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector comprises an elastic fabric as a fastener and an endowing piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector comprises an elastic fabric as a fastener and an endowing piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyamide based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector comprises an elastic fabric as a fastener and an endowing piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

The meniscus protector comprises an elastic fabric as a fastener and an endowing piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; the dilatancy energy-absorbing component is of a simple hollow structure, and the polymer matrix of the dilatancy energy-absorbing component is hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 5-25A or not more than 15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not less than 75%; it may optionally contain other accessories;

the meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and a three-dimensional woven material as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cell structure with dynamic dilatancy in the cell walls and/or cell core; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

The meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and a three-dimensional woven material as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatant energy-absorbing component is a solid cell structure with dynamic dilatancy in the cell walls and/or cell core; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

the meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and a three-dimensional woven material as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cell structure having a cell wall and/or cell core with dynamic dilatancy based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

The meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and a three-dimensional woven material as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatant energy-absorbing component is a solid cell structure having a cell wall and/or cell core with dynamic dilatancy based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

the meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and a three-dimensional woven material as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polysiloxane based on the dynamic dilatancy of a boron-containing dynamic covalent bond; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

The meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and a three-dimensional woven material as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatant energy absorbing component is a solid cellular structure having a cell wall and/or cell core comprising a hybrid dynamic covalently cross-linked polysiloxane that is dynamic dilatant based on boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

the meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and a three-dimensional woven material as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

The meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and a three-dimensional woven material as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamic covalently cross-linked polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

the meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and a three-dimensional woven material as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

The meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and a three-dimensional woven material as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

the meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and a three-dimensional woven material as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

The meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and a three-dimensional woven material as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

the meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and a three-dimensional woven material as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

The meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and a three-dimensional woven material as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatant energy absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

the meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and a three-dimensional woven material as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyester based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

The meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and a three-dimensional woven material as a shaping piece; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell walls and/or cell core of which comprise a hybrid dynamically crosslinked thermoplastic polyester based on the dynamic dilatancy of boron-containing dynamic covalent bonds; the hardness of the dilatancy energy-absorbing component is 10-20A or 5-10C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 80%; it may optionally contain other accessories;

the meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and at least two combinations of cloth, the elastic fabric, other fabrics, a three-dimensional woven material, a 3D printing material, an open-cell or semi-open-cell foam material, leather (natural/artificial), non-woven fabric, a spring and a film are used as endowing pieces; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy, and the cell wall has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

The meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and at least two combinations of cloth, the elastic fabric, other fabrics, a three-dimensional woven material, a 3D printing material, an open-cell or semi-open-cell foam material, leather (natural/artificial), non-woven fabric, a spring and a film are used as endowing pieces; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy, and the cell wall has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

the meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and at least two combinations of cloth, the elastic fabric, other fabrics, a three-dimensional woven material, a 3D printing material, an open-cell or semi-open-cell foam material, leather (natural/artificial), non-woven fabric, a spring and a film are used as endowing pieces; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, and the cell wall has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

The meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and at least two combinations of cloth, the elastic fabric, other fabrics, a three-dimensional woven material, a 3D printing material, an open-cell or semi-open-cell foam material, leather (natural/artificial), non-woven fabric, a spring and a film are used as endowing pieces; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core has dynamic dilatancy based on boron-containing dynamic covalent bonds, and the cell wall has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

the meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and at least two combinations of cloth, the elastic fabric, other fabrics, a three-dimensional woven material, a 3D printing material, an open-cell or semi-open-cell foam material, leather (natural/artificial), non-woven fabric, a spring and a film are used as endowing pieces; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatant energy-absorbing component is a solid cellular structure, the cell core of which comprises a dynamic covalent and/or hybrid dynamic covalent cross-linked polysiloxane based on the dynamic dilatancy of a boron-containing dynamic covalent bond, the cell walls of which have no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

The meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and at least two combinations of cloth, the elastic fabric, other fabrics, a three-dimensional woven material, a 3D printing material, an open-cell or semi-open-cell foam material, leather (natural/artificial), non-woven fabric, a spring and a film are used as endowing pieces; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatant energy-absorbing component is a solid cellular structure having a core of dynamically covalently and/or hybrid covalently cross-linked polysiloxane that is dynamically dilatant based on boron-containing dynamic covalent bonds, the walls of which do not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

the meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and at least two combinations of cloth, the elastic fabric, other fabrics, a three-dimensional woven material, a 3D printing material, an open-cell or semi-open-cell foam material, leather (natural/artificial), non-woven fabric, a spring and a film are used as endowing pieces; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

The meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and at least two combinations of cloth, the elastic fabric, other fabrics, a three-dimensional woven material, a 3D printing material, an open-cell or semi-open-cell foam material, leather (natural/artificial), non-woven fabric, a spring and a film are used as endowing pieces; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component contains hybrid dynamic covalent cross-linked polyolefin based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

the meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and at least two combinations of cloth, the elastic fabric, other fabrics, a three-dimensional woven material, a 3D printing material, an open-cell or semi-open-cell foam material, leather (natural/artificial), non-woven fabric, a spring and a film are used as endowing pieces; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of which contains a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of which has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

The meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and at least two combinations of cloth, the elastic fabric, other fabrics, a three-dimensional woven material, a 3D printing material, an open-cell or semi-open-cell foam material, leather (natural/artificial), non-woven fabric, a spring and a film are used as endowing pieces; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of which contains a hybrid dynamically crosslinked thermoplastic polyolefin based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of which has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

the meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and at least two combinations of cloth, the elastic fabric, other fabrics, a three-dimensional woven material, a 3D printing material, an open-cell or semi-open-cell foam material, leather (natural/artificial), non-woven fabric, a spring and a film are used as endowing pieces; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of the component comprises hybrid dynamic crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

The meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and at least two combinations of cloth, the elastic fabric, other fabrics, a three-dimensional woven material, a 3D printing material, an open-cell or semi-open-cell foam material, leather (natural/artificial), non-woven fabric, a spring and a film are used as endowing pieces; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of the component comprises hybrid dynamic crosslinked thermoplastic polyurethane based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

the meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and at least two combinations of cloth, the elastic fabric, other fabrics, a three-dimensional woven material, a 3D printing material, an open-cell or semi-open-cell foam material, leather (natural/artificial), non-woven fabric, a spring and a film are used as endowing pieces; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of which comprises a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of which has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

The meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and at least two combinations of cloth, the elastic fabric, other fabrics, a three-dimensional woven material, a 3D printing material, an open-cell or semi-open-cell foam material, leather (natural/artificial), non-woven fabric, a spring and a film are used as endowing pieces; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cellular structure, the cell core of which comprises a hybrid dynamically crosslinked thermoplastic polyamide based on the dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of which has no dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

the meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and at least two combinations of cloth, the elastic fabric, other fabrics, a three-dimensional woven material, a 3D printing material, an open-cell or semi-open-cell foam material, leather (natural/artificial), non-woven fabric, a spring and a film are used as endowing pieces; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is hollowed out at the knee position; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories;

The meniscus protector comprises at least two combinations of an elastic band, an elastic fabric, other fabrics and a fastener, and at least two combinations of cloth, the elastic fabric, other fabrics, a three-dimensional woven material, a 3D printing material, an open-cell or semi-open-cell foam material, leather (natural/artificial), non-woven fabric, a spring and a film are used as endowing pieces; the energy-absorbing assembly comprises an expansive and fluid energy-absorbing assembly with a ring-like meniscus protection function, and the expansive and fluid energy-absorbing assembly is not completely hollowed at the position of a knee; wherein the dilatancy energy-absorbing component is a solid cell structure, the cell core of the component comprises hybrid dynamic cross-linked thermoplastic polyester based on dynamic dilatancy of boron-containing dynamic covalent bonds, and the cell wall of the component does not have dilatancy; the hardness of the dilatancy energy-absorbing component is 20-30A or 10-15C, and the degree of fit between the dilatancy energy-absorbing component and the protected part is not lower than 70%; it may optionally contain other accessories as well.