CN115503295A - Energetic material sandwich fiber composite material rotary cylinder and preparation method thereof - Google Patents

Energetic material sandwich fiber composite material rotary cylinder and preparation method thereof Download PDF

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Publication number
CN115503295A
CN115503295A CN202211158811.5A CN202211158811A CN115503295A CN 115503295 A CN115503295 A CN 115503295A CN 202211158811 A CN202211158811 A CN 202211158811A CN 115503295 A CN115503295 A CN 115503295A
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energetic material
energetic
polymer matrix
fiber
sandwich
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CN115503295B (en
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贺雍律
王宪
唐俊
张鉴炜
刘钧
陈丁丁
白书欣
尹昌平
杨金水
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National University of Defense Technology
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a general shape other than plane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/38—Layered products comprising a layer of synthetic resin comprising epoxy resins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0007—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality
    • B32B37/003—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality to avoid air inclusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B32B37/1018—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure using only vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B2038/0052—Other operations not otherwise provided for
    • B32B2038/0076—Curing, vulcanising, cross-linking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/02—Open containers

Abstract

The invention discloses an energetic material sandwich fiber composite material rotary cylinder and a preparation method thereof, wherein the rotary cylinder comprises an outer skin structure unit, a plurality of layers of sandwich structure units and an inner skin structure unit which are sequentially arranged from outside to inside, wherein the plurality of layers of sandwich structure units consist of odd number sandwich structure units and even number sandwich structure units which are alternately arranged; each structural unit is composed of a polymer matrix, energetic materials distributed in the polymer matrix and a bearing layer arranged on the inner side of the polymer matrix. The preparation method comprises the steps of preparing the fiber prepreg containing the energetic material, cutting and pre-laminating the fiber prepreg and the energetic material blended resin film, sequentially laying the prepreg and the resin film on a mould, compacting and exhausting, assembling the mould and curing in sections. The rotary cylinder body has the advantages of variable and adjustable types of energetic materials, good mechanical property, multi-layer and ordered component distribution and the like, and the preparation method has simple process and is easy to realize large-scale production.

Description

Energetic material sandwich fiber composite material rotary cylinder and preparation method thereof
Technical Field
The invention belongs to the field of preparation of carbon fiber composite structure-function integrated components, and particularly relates to an energetic material sandwich fiber composite material rotary cylinder and a preparation method thereof.
Background
The carbon fiber composite material gradually replaces structural steel, aluminum alloy, titanium alloy and other metal structural materials with the advantages of high specific strength, high specific modulus, fatigue resistance, corrosion resistance, designable performance and the like, becomes a preferred structural material of aerospace equipment, and the cylinder type revolving body is the most common structural type of the aerospace equipment. In order to endow damage performance to aerospace equipment, the energy content of a structural material is an effective solution. The general method for preparing the cylinder type revolving body mainly comprises spinning, forging, milling, turning and the like. The methods all belong to 'material reduction manufacturing', and in order to ensure the bearing performance of the prepared material, the components of the method are determined in the preparation stage of raw materials and are difficult to change in the process of preparing a component. In addition, in the processes of manufacturing these components, processing procedures such as high temperature and high pressure are usually involved, and energetic materials are usually reactive materials, and are likely to react under high temperature and high pressure to release energy, so that unpredictable safety problems are brought to the preparation of the components, and therefore, the energetic materials are difficult to realize. The preparation of the carbon fiber composite material belongs to an additive manufacturing mode, the selection of the components and the distribution of the components in a member can be flexibly selected according to specific requirements, the forming process conditions are mild, and the high-temperature and high-pressure forming process is not involved, so that the carbon fiber composite material has the precondition of energy conservation.
The method mainly comprises two common methods for introducing the energy-containing component into the carbon fiber composite material cylinder type revolving body, wherein firstly, the energy-containing component is made into thin layers and is alternately laminated with carbon fiber prepreg, and the carbon fiber layer and the energy-containing component layer are bonded by utilizing the bonding property of matrix resin in the carbon fiber composite material. And secondly, mixing the energy-containing components among the carbon fiber layers into the matrix resin, and preparing the carbon fiber composite material by vacuum introduction, hand pasting or wet winding. In the first method, the cohesive strength of the energetic material is generally not high, and the energetic material layer is easily broken under an external load, thereby reducing the strength of the member. In the second method, the resin viscosity is generally low. Because the energetic material is usually metal particles, and the density is 2-10 times of that of the resin matrix, the energetic material is easy to settle in the resin, and when a barrel type component is prepared, the problem of uneven distribution of the particles in the component is easily caused, so that the energy release effect of the composite material is influenced, and the load bearing performance is possibly reduced. In addition, because the addition of the particle energetic material can significantly improve the fluidity of the resin, a large number of defects are easily introduced into the composite material during molding. Therefore, the method has the advantages that the adding amount of the energetic material in the matrix is limited, the content is difficult to flexibly regulate and control, and the exertion of the energy release characteristic of the carbon fiber composite material cylinder revolving body is greatly limited.
Disclosure of Invention
The invention aims to solve the technical problems of overcoming the defects of the prior art, in particular to the problems of low cohesive strength and uneven distribution of energetic materials in a composite material rotary cylinder and limited addition amount of the energetic materials in the cylinder at present, the rotary cylinder made of the energetic material sandwich fiber composite material has variable types of energetic materials, adjustable content in the cylinder and good mechanical property, and the preparation method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme.
A rotary cylinder made of energetic material sandwich fiber composite materials comprises an outer skin structure unit, a plurality of layers of sandwich structure units and an inner skin structure unit which are sequentially arranged from outside to inside, wherein the plurality of layers of sandwich structure units are composed of odd number sandwich structure units and even number sandwich structure units which are alternately arranged; the outer skin structure unit is composed of a first polymer matrix, first energetic materials distributed in the first polymer matrix and a first bearing layer arranged on the inner side of the first polymer matrix, the number of the odd sandwich structure units is N, and the nth odd sandwich structure unit is marked as O n Structural unit, N is more than or equal to 1 and less than or equal to N, N is a positive integer, then O is n Structural unit is composed of n Polymer matrix, distribution in O n O in the Polymer matrix n Energetic material and organic group at O n O inside the polymer matrix n The bearing layer is formed by setting the number of the even sandwich structure units as M and the mth odd sandwich structure unit as O m M is more than or equal to 1 and less than or equal to M, and M is a positive integer, then O is m Structural unit is composed of m Polymer matrix, distribution in O m O in a polymer matrix m Energetic material and organic group at O m Polymer matrixInner side O m The inner skin structural unit consists of a second polymer matrix, a second energetic material distributed in the second polymer matrix and a second bearing layer arranged on the inner side of the second polymer matrix; the outer skin structure units, the odd number sandwich structure units, the even number sandwich structure units and the inner skin structure units are all of barrel structures, and the thicknesses of the outer skin structure units, the odd number sandwich structure units, the even number sandwich structure units and the inner skin structure units are all 0.11-0.8 mm; the first carrier layer, O n Bearing layer, O m The carrier layer and the second carrier layer are layers of fibrous fabric.
In the rotary cylinder, each structural unit can also be considered to be composed of an energy-containing layer and a bearing layer arranged on the inner side of the energy-containing layer, wherein the energy-containing layer is composed of a polymer matrix and energy-containing materials distributed in the polymer matrix.
Preferably, N is 1-10, M is 1-10.
Preferably, the first energetic material, the O and the energy-containing material are arranged in a revolving cylinder body made of the energetic material sandwich fiber composite material n Energetic material, O m The energetic material and the second energetic material are in the shapes of particles, fibers or sheets, and the first energetic material and the second energetic material are in the shapes of particles, fibers or sheets n Energetic material, O m The dimension of the appearance characteristics of the energetic material and the second energetic material is 0.1-50 mu m.
Preferably, the first energetic material, the O and the energy-containing material are arranged in a revolving cylinder body made of the energetic material sandwich fiber composite material n Energetic material, O m The energetic material and the second energetic material are selected from one or more of particle materials composed of non-metallic elements, metal elements, alloys or polymers, the particle diameter of the energetic material is 1-20 mu m, the non-metallic elements comprise one or more of B, C and P, and the metal elements comprise one or more of Al, fe, co, ni, ta and TiThe alloy comprises an aluminum magnesium alloy, and the polymer comprises one or more of polyvinylidene fluoride, polytetrafluoroethylene and tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride copolymer.
Preferably, the first energetic material, the O and the energy-containing material are arranged in a revolving cylinder body made of the energetic material sandwich fiber composite material n Energetic material, O m The energetic material and the second energetic material are uniformly dispersed in the polymer matrix of the corresponding structural unit, and the first energetic material and the second energetic material are O n Energetic material, O m The volume fraction of the energetic material and the second energetic material in the polymer matrix of the corresponding structural unit is 5-60%.
Preferably, the first bearing layer, the O layer and the second bearing layer are arranged in the rotating cylinder body made of energetic material and sandwich fiber composite material n Bearing layer, O m The bearing layer and the second bearing layer have different ply angles, and the first bearing layer and the second bearing layer are O n Bearing layer, O m The thicknesses of the bearing layer and the second bearing layer are both 0.1 mm-0.3 mm; the first carrier layer, O n Bearing layer, O m Energetic materials are embedded in the surfaces of the bearing layer and the second bearing layer, the thickness of the embedded energetic materials is in the range of 0.5-3.5 micrometers, and the volume fraction of the embedded energetic materials in the corresponding bearing layer is 0.5-10%.
Preferably, the fiber fabric layer comprises a continuous fiber unidirectional tape, a long fiber fabric or a chopped strand mat, and the fiber of the fiber fabric layer comprises one or more of carbon fiber, glass fiber, ultra-high molecular weight polyethylene fiber, kevlar fiber, PBO fiber, boron fiber and tungsten core fiber with boron deposited on the surface.
In the above energetic material sandwich fiber composite material rotary cylinder, preferably, the first polymer matrix, O n Polymer matrix, O m The polymer matrix and the second polymer matrix are selected from one or more of epoxy resin, fluorine modified epoxy resin, fluorine resin, unsaturated polyester resin and fluorine rubber.
Preferably, the outer skin structure unit is composed of a first circular cylinder bottom and a first circular cylinder body, the diameter of the first circular cylinder bottom is equal to the outer diameter of the rotary cylinder body, the circumference of the first circular cylinder body is equal to the circumference of the periphery of the rotary cylinder body, and the height of the first circular cylinder body is higher than the height of the periphery of the rotary cylinder body.
The above energetic material sandwich fiber composite material rotary cylinder is preferably O n Structural unit consisting of n Circular barrel and O with protrusion n Circular cylinder bottom, O n The protruding part of the round cylinder bottom is stuck on the O n On the outer wall of the circular barrel body, the protruding part is along O n The circumference of the circular cylinder bottom is uniformly distributed, and the protruding part is connected with O n The arc length of the circular cylinder bottom is O n The circumference of the circular cylinder bottom is 3-36 equal parts long; adjacent O n Structural unit and O n+1 The structural units satisfy: o is n+1 Round barrel bottom and O n The difference of the perimeter of the circular cylinder bottom is O n 6.28 times of the thickness of the circular cylinder body, O n+1 A circular barrel and O n The height difference of the round barrel body is O n 1/10-1/20 of the inner diameter of the circular cylinder bottom n+1 Circular cylinder bottom protrusion and O n The length difference of the bottom protrusions of the circular cylinder is O n 1/20-1/10 of the height of the round barrel body.
The above energetic material sandwich fiber composite material rotary cylinder is preferably O m Structural unit is composed of m Circular cylinder bottom and O with protrusion m Formed by a circular barrel body, O m The protruding part of the round barrel body is stuck on the O m On the circular cylinder bottom, the protruding part edge O m The periphery of the round barrel body is uniformly distributed, and the protruding part is connected with O m The arc length of the circular cylinder body is O m The circumference of the round barrel body is 3-36 equal parts long; adjacent O m Structural unit and O m+1 The structural units satisfy: o is m+1 Round bottom and O m The difference of the perimeter of the circular cylinder bottom is O m Thickness of the cylindrical body is 3.14 times, O m+1 Round bottom and O m The difference of the diameters of the circular cylinder bottoms is O m 1/5-1/20 of the inner diameter of the circular cylinder body m+1 Circular cylinder bottom protrusion and O m The length difference of the bottom protrusions of the circular cylinder is O m 1/20-1/5 of the inner diameter of the circular cylinder body.
Preferably, the inner skin structural unit is composed of a second circular cylinder bottom and a second circular cylinder body, the diameter of the second circular cylinder bottom is equal to the diameter of an inner cavity of the rotary cylinder body, the circumference of the second circular cylinder body is equal to the circumference of the inner cavity of the rotary cylinder body, and the height of the second circular cylinder body is higher than the height of the inner cavity of the rotary cylinder body.
As a general technical concept, the invention also provides a preparation method of the rotary cylinder body made of the energetic material sandwich fiber composite material, which comprises the following steps:
(1) Preparing an energetic material blended resin film by adopting a calendering method, and then preparing a fiber prepreg containing an energetic material by adopting a roll-to-roll calendering mode in a configuration of the energetic material blended resin film-fiber fabric-energetic material blended resin film;
(2) According to the characteristics of each structural unit of a preset rotary cylinder, cutting fiber prepreg containing an energetic material and an energetic material blended resin film to obtain pre-laminated fiber prepreg containing the energetic material and the energetic material blended resin film;
(3) Preparing a die consisting of an inner male die and an outer female die, placing demolding cloth on the surface of the inner male die, raising the surface temperature of the inner male die to 30-50 ℃, then paving a layer of energetic material blended resin film as a substrate layer, keeping the surface temperature of the inner male die, and sequentially paving the pre-laminated energetic material-containing fiber prepreg obtained in the step (2) and the energetic material blended resin film on the inner male die according to the characteristics of each structural unit of the rotary cylinder and exhausting gas;
(4) After 1-6 layers of structural units are laid, covering with air-permeable polytetrafluoroethylene fabric cloth and a silica gel cushion, heating the laid fiber prepreg containing the energetic material and the energetic material blended resin film to 30-80 ℃ by adopting a vacuum bag pressing process, and keeping for 10-30 min to compact and exhaust; the vacuum bag is taken down in sequence after air is exhausted a silica gel cushion and a breathable polytetrafluoroethylene fabric cloth; repeating the steps until all the structural units are laid;
(5) Covering the surface of the outermost layer structure unit subjected to vacuum bag pressing treatment with air-permeable polytetrafluoroethylene fabric cloth, then enclosing and attaching a circle of stainless steel sheet, covering an outer female die and an upper cover plate, wrapping an air-guide medium on the outer surface of the die, sealing the outermost layer with a vacuum bag, and completing die assembly before curing;
(6) Placing the mould with the vacuum bag in an oven, monitoring the surface temperature of the mould in the vacuum bag, and heating the mould from room temperature to T h1 Keeping temperature t h1 Then from T h1 Heating to T h2 Keeping temperature t h2 Then the temperature is raised to T c Keeping warm t c Fully solidifying, cooling to room temperature, and demolding to obtain the energetic material sandwich fiber composite material rotary cylinder; wherein, T is h1 The temperature of the resin system is raised to a temperature at which the isothermal viscosity is first lower than 10001 mPas to 20000 mPas, t h1 Is 1 to 5 hours, the T is h2 The temperature of the resin system used is raised to a temperature at which the isothermal viscosity is first below 5000 to 10000 mPas, t h2 Is 0.5 to 1 hour, the T is c For the resin system employed, the peak curing temperature at a temperature rise rate of 0, t c Is 1-8 h.
In the above method for preparing the rotary cylinder body made of the energetic material laminated fiber composite material, preferably, the volume fraction of the energetic material in the energetic material blended resin film is 1% to 80%, and the thickness of the energetic material blended resin film is 0.05mm to 0.3mm; the thickness of silica gel cushion is 0.5mm ~ 2mm, nonrust steel sheet is ultra-thin nonrust steel sheet, the thickness of nonrust steel sheet is 0.01mm ~ 0.1mm, the length and the outmost constitutional unit stack shell height of nonrust steel sheet equal, the width of nonrust steel sheet is the outer periphery of the outmost constitutional unit of 1/3 ~ 1/8.
In the above method for preparing the rotary cylinder made of the energetic material sandwiched fiber composite material, preferably, if the fiber volume fraction in the rotary cylinder is less than 35%, the fiber prepreg containing the energetic material and the energetic material blended resin film in the same structural unit are first subjected to flat lamination at 30-50 ℃.
In the invention, the bearing layer mainly plays a role in bearing and supporting the whole rotary cylinder body and is a source of the strength and rigidity of the rotary cylinder body.
In the invention, the selected polymer matrix has the characteristics of high room temperature viscosity and film forming.
In the present invention, the constituent materials of the respective structural units may be the same or different.
In the present invention, O n The circumference of the circular cylinder bottom is equal to O n Outer circumference of the circular barrel, O m The circumference of the circular cylinder bottom is equal to O m The outer circumference of the circular barrel.
The invention relates to an energy-containing material interlayer fiber composite material rotary cylinder which is manufactured by a metal forming die consisting of an ejection mechanism, an inner male die, a multi-piece tile outer female die and an upper cover plate through a hot vacuum bag pressing forming process without or with the assistance of external pressure.
Compared with the prior art, the invention has the advantages that:
1. the rotary cylinder body made of the energetic material sandwich fiber composite material has the characteristics of high content of energetic components, flexible and variable energetic components/content and good bearing performance of the cylinder body. The fiber reinforced composite material is a laminated structure, the shear strength between layers is an important index for measuring the performance of the composite material, and if the prior art is adopted, namely, an energy-containing material is directly attached to the surface of the composite material, the defect of insufficient structural strength is avoided. The energy-containing material interlayer carbon fiber composite material rotary cylinder has wide application scenes in a structure-energy release integrated structure.
2. The preparation method of the invention designs a set of ply structure suitable for the rotary cylinder by utilizing the flexibility and designability of the prepreg and the resin film, the structure can effectively solve the defect of weak bonding strength between the cylinder bottom and the cylinder body of the composite material rotary cylinder, improves the resin film melting and dipping method, reasonably distributes the resin film among all structural units, ensures the designability and integrity of each structural unit, realizes the flexible control and simple and convenient distribution regulation of the types of the energetic material components in the composite material cylinder, and solves the technical problems of low cohesive strength of the energetic material ply of the traditional energetic carbon fiber composite material rotary cylinder, low content of the energetic material in the cylinder, low bearing performance of the cylinder and the like.
Drawings
FIG. 1 is a diagram of the rotating cylinder body of energetic material sandwich fiber composite material in example 1 of the present invention n Structural unit and O m Structural schematic and a stacking mode diagram of the structural unit.
Fig. 2 is a front photograph and a cross-sectional photograph of a rotary cylinder made of energetic material sandwiched fiber composite material prepared in example 1 of the present invention.
Fig. 3 is a front photograph and a cross-sectional photograph of a rotating cylinder made of energetic material sandwiched fiber composite material prepared in example 2 of the present invention.
Fig. 4 is a photograph of the front and cross-section of a rotating cylinder of energetic material sandwiched fiber composite prepared in comparative example 1.
Fig. 5 is a photograph of the front and cross-section of a rotating cylinder of energetic material sandwiched fiber composite prepared in comparative example 2.
Detailed Description
The invention is further described below with reference to the drawings and specific preferred embodiments of the description, without thereby limiting the scope of protection of the invention. In the following examples, all the raw materials and instruments used are commercially available unless otherwise specified.
Example 1:
the invention relates to an energetic material sandwich fiber composite material rotary cylinder, which comprises an outer skin structure unit, a plurality of layers of sandwich structure units and an inner skin structure unit which are sequentially arranged from outside to inside, wherein the plurality of layers of sandwich structure units consist of odd number sandwich structure units and even number sandwich structure units which are alternately arranged; outer skin structureThe unit comprises a first polymer matrix, a first energetic material distributed in the first polymer matrix and a first bearing layer arranged on the inner side of the first polymer matrix, the number of the odd sandwich structure units is 7, namely N is 8,1 ≤ N ≤ 7, namely O is divided into O in the odd sandwich structure units 1 、O 2 、O 3 、O 4 、O 5 、O 6 、O 7 、O 8 Structural unit O n Structural unit consisting of n Polymer matrix, distribution in O n O in a polymer matrix n Energetic material and organic group at O n O inside the polymer matrix n The number of the even number of the sandwich structure units in the embodiment is 8, namely M is 7,1 ≤ M ≤ 7,O m Structural unit consisting of m Polymer matrix, distribution in O m O in the Polymer matrix m Energetic material and organic group at O m O inside the polymer matrix m The inner skin structure unit consists of a polymer matrix, energetic materials distributed in the polymer matrix and a bearing layer arranged on the inner side of the polymer matrix. In this example, the height of the rotary drum was 215mm, the outer diameter of the drum was 100mm, the wall thickness was 5.5mm, and the fiber volume fraction was 50%. The rotary cylinder is obtained by stacking 17 structural units, and the thickness of each structural unit is 0.32mm.
In this example, the first energetic material, O n Energetic material, O m The energetic material and the second energetic material are both composed of Al particles and Ta particles according to the mass ratio of 9: 1, the diameter of the Al particles is 5 mu m, and the diameter of the Ta particles is 20 mu m.
In this example, the first energetic material, O n Energetic material, O m The energetic material and the second energetic material are uniformly dispersed in the polymer matrix of the corresponding structural unit, the first energetic material and O n Energetic material, O m The volume fraction of the energetic material, the second energetic material, in the polymer matrix of the corresponding structural unit is 50%. The polymer matrix containing the energetic material, i.e., the energetic layer, was 0.12mm thick. The energy-containing layer is an energy-containing material which is embedded in a multi-component epoxy matrix and has the metal particles with the thickness of 0.12mm, the diameter of 5 mu m Al and the diameter of 20 mu m TaA solid layer formed.
In this embodiment, the first carrier layer, O n Bearing layer, O m The layer spreading angle between the bearing layer and the second bearing layer is 30 degrees, the first bearing layer and the second bearing layer are O n Bearing layer, O m The thicknesses of the bearing layer and the second bearing layer are both 0.2mm; first carrier layer, O n Bearing layer, O m The surface of the bearing layer and the second bearing layer is embedded with energy-containing materials (corresponding to the transition layer), the thickness of the embedded energy-containing materials is 1-2 mu m, and the volume fraction of the embedded energy-containing materials in the corresponding bearing layer is 2%. First carrier layer, O n Bearing layer, O m The bearing layer and the second bearing layer are both fiber fabric layers, and the fiber fabric layers are T300 carbon fiber fabrics.
In this example, the first Polymer matrix, O 3 Polymer matrix, O 4 The polymer matrix and the second polymer matrix are respectively formed by curing carboxyl-terminated butadiene-acrylonitrile rubber, F46 epoxy resin, E51 epoxy resin and dicyandiamide according to the mass ratio of 2: 3: 5: 1.
In this embodiment, the outer skin structure unit is formed by connecting a first circular cylinder bottom and a first circular cylinder body, a diameter of the first circular cylinder bottom is equal to an outer diameter of the rotary cylinder body, a circumference of the first circular cylinder body is equal to a circumference of an outer periphery of the rotary cylinder body, and a height of the first circular cylinder body is higher than a height of the outer periphery of the rotary cylinder body.
In this example, as shown in FIG. 1, O n Structural unit consisting of n A circular barrel body (the figure is the development of the circular barrel body) and an O with a protruding part (namely a protruding flanging with the length of h) n Circular cylinder bottom, O n The protruding part of the round cylinder bottom is stuck on the O n The outer wall of the circular cylinder body is provided with a protruding part along the O n The circumference of the circular cylinder bottom is uniformly distributed, and the protruding part is connected with O n The arc length of the circular cylinder bottom is O n The circumference of the circular cylinder bottom is 8 equal parts long; adjacent to O n Structural unit and O n+1 The structural units satisfy: o is n+1 Round bottom and O n The difference of the perimeter of the circular cylinder bottom is O n 6.28 times of the thickness of the circular cylinder body, O n+1 A circular barrel and O n Height of the circular barrelThe difference is O n 1/10 of the inner diameter of the circular cylinder bottom n+1 Circular barrel bottom protrusion and O n The length difference of the bottom protrusions of the circular cylinder is O n 1/10 of the height of the round barrel.
In this example, as shown in FIG. 1, O m Structural unit is composed of m A circular barrel bottom (the figure is the development of the circular barrel body) and an O with a protruding part (namely a protruding flanging with the length of h) m Formed by a circular barrel body, O m The protruding part of the round barrel body is stuck on the O m On the circular cylinder bottom, the protruding part edge O m The periphery of the round barrel body is uniformly distributed, and the protruding part is connected with an O m The arc length of the circular cylinder body is O m The periphery of the round barrel body is 8 equal parts long; adjacent O m Structural unit and O m+1 The structural units satisfy: o is m+1 Round bottom and O m The difference of the circumferences of the circular cylinder bottoms is O m 6.28 times of the thickness of the circular cylinder body, O m+1 Round bottom and O m The difference of the diameters of the circular cylinder bottoms is O m 1/5,O of circular cylinder inner diameter m+1 Circular barrel bottom protrusion and O m The length difference of the circular cylinder bottom projection is O m 1/5 of the inner diameter of the circular barrel body.
In this embodiment, the inner skin structural unit is composed of a second circular cylinder bottom and a second circular cylinder body, a diameter of the second circular cylinder bottom is equal to a diameter of an inner cavity of the rotary cylinder body, a circumference of the second circular cylinder body is equal to a circumference of the inner cavity of the rotary cylinder body, and a height of the second circular cylinder body is higher than a height of the inner cavity of the rotary cylinder body.
The preparation method of the rotary cylinder body made of the energetic material sandwich fiber composite material comprises the following steps:
(1) Preparing an energetic material blended resin film on a commercially available glue spreader by adopting a calendering method, and then preparing a fiber prepreg containing an energetic material on the commercially available glue spreader by using the two rolls of resin films and the fiber fabric prepared by the method in a roll-to-roll calendering mode according to the configuration of the energetic material blended resin film-fiber fabric-energetic material blended resin film.
(2) According to the characteristics of each structural unit of a preset rotary cylinder, cutting the fiber prepreg containing the energetic material and the energetic material blended resin film on a commercial full-automatic cutting machine to obtain the pre-laminated fiber prepreg containing the energetic material and the energetic material blended resin film, and scraping the surface with a hard epoxy plate to remove gas inclusions. The energetic material blended resin film is convenient for improving the mass fraction of the energetic material on one hand and reducing the process difficulty on the other hand.
(3) Preparing a mould consisting of an inner male mould and a vulva mould, placing demoulding cloth on the surface of the inner male mould, raising the surface temperature of the inner male mould to 30 ℃, and then paving a layer of energetic material blended resin film as a substrate layer, so that the adhesion between the prepreg and the mould surface is increased, and air inclusions on the inner wall of the cylinder are reduced. Keeping the surface temperature of the inner male mold, sequentially paving the pre-laminated fiber prepreg containing the energetic material and the energetic material blended resin film obtained in the step (2) on the inner male mold according to the characteristics of each structural unit of the rotary cylinder, and exhausting gas.
(4) Covering with air-permeable polytetrafluoroethylene fabric cloth and silica gel cushion after laying 4 layers of structural units, heating the laid fiber prepreg and energetic material blended resin film to 50 ℃ by adopting a vacuum bag pressing process, and keeping for 20min to compact and exhaust; after exhausting, sequentially taking down the vacuum bag, the silica gel cushion and the breathable polytetrafluoroethylene fabric cloth; this step needs to be repeated 4 times.
(5) Covering the surface of the outermost layer structure unit after vacuum bag pressing treatment with air-permeable polytetrafluoroethylene fabric cloth, then enclosing and pasting a circle of stainless steel sheets without intervals, then covering an outer female die and an upper cover plate, wrapping the air-guide medium on the outer surface of the die, sealing the vacuum bag, and completing die assembly before curing.
(6) And (3) placing the mold packaged with the vacuum bag in an oven, monitoring the surface temperature of the mold in the vacuum bag by using a thermocouple, heating the mold from room temperature to 80 ℃, preserving heat for 1h, then heating from 80 ℃ to 100 ℃, preserving heat for 1h, then heating to 120 ℃, preserving heat for 2h, fully curing, then cooling to room temperature, and demolding to obtain the rotary cylinder body of the energetic material sandwich fiber composite material, wherein the rotary cylinder body is shown in figure 2.
In the embodiment, the volume fraction of the energetic material in the energetic material blended resin film is 50%, and the thickness of the energetic material blended resin film is 0.06mm; the thickness of silica gel cushion is 2mm, and nonrust steel sheet is ultra-thin nonrust steel sheet, and thickness is 0.05mm, and length is equal with outermost layer stack height, and the width is 1/8 section of thick bamboo outer circumference.
Example 2
An energetic material sandwich fiber composite material rotary cylinder body of the invention is basically the same as the embodiment 1, and the difference is only that: the fiber volume fraction in the rotary cylinder is 15%, the multilayer laminated structure has 8 structural units, the number of odd number interlayers is 3, and the number of even number interlayers is 3. The thickness of each single structural unit is 0.69mm, the thickness of the energy-containing layer is 0.49mm, and the volume fraction of the energy-containing material in the energy-containing layer is 60%. The photograph of the structure of the rotary cylinder is shown in FIG. 3.
The preparation process of the rotary cylinder body made of the energetic material sandwich fiber composite material is basically the same as that of the example 1, and the difference is only that: in the step (2), after the resin film and the prepreg are cut, firstly, controlling the temperature on a bottom surface temperature control platform to be 40 ℃, flatly attaching the resin film layer by layer to the prepreg of the layer structural unit on the temperature control platform by using a flat iron with a heating function, and controlling the temperature of the flat iron to be consistent with that of the temperature control platform during attachment. In the step (4), after 1 layer is paved, a vacuum bag pressing process is adopted, the paved prepreg and resin film are heated to 40 ℃, then the temperature is kept for 10min to compact the paved layer, and air bubbles mixed among the paved layers are discharged.
Comparative example 1
The basic geometric shape, material and structural unit of the cartridge in this comparative example are exactly the same as those in example 1. The preparation process of the rotary cylinder body made of the energetic material sandwich fiber composite material of the comparative example is basically the same as that of the example 1, and the difference is only that: and (4) compacting layer by layer without adopting the step (4) to remove bubbles. As shown in fig. 4, it can be seen that there are many folds in the shape of the rotary drum and many air holes at the cross section of the drum body.
Comparative example 2
The basic geometric shape, material and structural unit of the cartridge in this comparative example are exactly the same as those in example 2. The preparation process of the rotary cylinder body made of the energetic material sandwich fiber composite material of the comparative example is basically the same as that of the example 2, and the difference is only that: in the step (6), multi-stage heating is not adopted, and the mould is directly heated to the curing temperature of 120 ℃. As shown in FIG. 5, it was found that there were many voids in the cross section of the drum when the temperature was raised directly to 120 ℃ and the curing system of the present invention helps the energy-containing resin film to remove a large number of air bubbles before the gel point, thereby improving the structural strength of the rotary drum.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or equivalent modifications, without departing from the spirit and scope of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention.

Claims (10)

1. The rotary cylinder body is characterized by comprising an outer skin structure unit, a plurality of layers of interlayer structure units and an inner skin structure unit which are sequentially arranged from outside to inside, wherein the plurality of layers of interlayer structure units are composed of odd number interlayer structure units and even number interlayer structure units which are alternately arranged; the outer skin structure unit is composed of a first polymer matrix, first energetic materials distributed in the first polymer matrix and a first bearing layer arranged on the inner side of the first polymer matrix, the number of the odd sandwich structure units is N, and the nth odd sandwich structure unit is marked as O n Structural unit, N is more than or equal to 1 and less than or equal to N, N is a positive integer, then O is n Structural unit consisting of n Polymer matrix, distribution in O n O in a polymer matrix n Energetic material and organic group at O n O inside the polymer matrix n A bearing layer, wherein the number of the even number of the interlayer structure units is M,the mth odd sandwich structural unit is marked as O m M is more than or equal to 1 and less than or equal to M, and M is a positive integer, then O is m Structural unit consisting of m Polymer matrix, distribution in O m O in a polymer matrix m Energetic material and organic group at O m O inside the polymer matrix m The inner skin structural unit consists of a second polymer matrix, a second energetic material distributed in the second polymer matrix and a second bearing layer arranged on the inner side of the second polymer matrix; the outer skin structure units, the odd number sandwich structure units, the even number sandwich structure units and the inner skin structure units are all of barrel structures, and the thicknesses of the outer skin structure units, the odd number sandwich structure units, the even number sandwich structure units and the inner skin structure units are all 0.11-0.8 mm; the first carrier layer, O n Bearing layer, O m The carrier layer and the second carrier layer are layers of fibrous fabric.
2. The energetic material sandwich fiber composite material rotary drum according to claim 1, wherein N is 1 to 10, m is 1 to 10; and/or, the first energetic material, O n Energetic material, O m The energetic material and the second energetic material are in the shapes of particles, fibers or sheets, and the first energetic material and the second energetic material are in the shapes of particles, fibers or sheets n Energetic material, O m The maximum dimension of the appearance characteristics of the energetic material and the second energetic material is 0.1-50 mu m.
3. The energetic material sandwich fiber composite rotating cylinder according to claim 2, wherein the first energetic material, O n Energetic material, O m The energy-containing material and the second energy-containing material are selected from one or more of particle materials composed of nonmetal elements, metal elements, alloys or polymers, the particle diameter of the energy-containing material is 1-20 micrometers, the nonmetal elements comprise one or more of B, C and P, the metal elements comprise one or more of Al, fe, co, ni, ta and Ti, the alloy comprises an aluminum magnesium alloy, and the polymers comprise one or more of polyvinylidene fluoride, polytetrafluoroethylene and tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride copolymer.
4. The energetic material sandwich fiber composite rotating cylinder according to claim 1, wherein the first energetic material, O n Energetic material, O m The energetic material and the second energetic material are uniformly dispersed in the polymer matrix of the corresponding structural unit, and the first energetic material and the second energetic material are O n Energetic material, O m The volume fraction of the energetic material and the second energetic material in the polymer matrix of the corresponding structural unit is 5-60%.
5. The energetic material sandwich fiber composite rotating drum of claim 1, wherein the first bearing layer, O, is n Bearing layer, O m The bearing layer and the second bearing layer have different ply angles, and the first bearing layer and the second bearing layer are provided with different ply angles n Bearing layer, O m The thicknesses of the bearing layer and the second bearing layer are both 0.1 mm-0.3 mm; the first carrier layer, O n Bearing layer, O m Energetic materials are embedded into the surfaces of the bearing layer and the second bearing layer, the thickness of the embedded energetic materials is in the range of 0.5-3.5 micrometers, and the volume fraction of the embedded energetic materials in the corresponding bearing layer is 0.5-10%;
the fiber fabric layer comprises a continuous fiber unidirectional tape, a long fiber fabric or a chopped strand mat, and the fiber of the fiber fabric layer comprises one or more of carbon fiber, glass fiber, ultra-high molecular weight polyethylene fiber, kevlar fiber, PBO fiber, boron fiber and tungsten core fiber with boron deposited on the surface.
6. The energetic material sandwich fiber composite rotating cylinder according to any one of claims 1 to 5, characterized in that the first polymer matrix, O n Polymer matrix, O m The polymer matrix and the second polymer matrix are selected from one or more of epoxy resin, fluorine modified epoxy resin, fluorine resin, unsaturated polyester resin and fluorine rubber.
7. The sandwich fiber composite swing barrel of energetic materials according to any one of claims 1 to 5, characterized in that the outer skin structural unit is composed of a first circular barrel bottom and a first circular barrel body, the diameter of the first circular barrel bottom is equal to the outer diameter of the swing barrel body, the circumference of the first circular barrel body is equal to the outer circumference of the swing barrel body, the height of the first circular barrel body is higher than the outer circumference height of the swing barrel body;
said O is n Structural unit is composed of n Circular barrel and O with protrusion n Circular cylinder bottom, O n The protruding part of the round cylinder bottom is stuck on the O n On the outer wall of the circular barrel body, the protruding part is along the O n The circumference of the circular cylinder bottom is uniformly distributed, and the protruding part is connected with O n The arc length of the circular cylinder bottom is O n 3-36 equal parts of the circumference of the circular cylinder bottom; adjacent to O n Structural unit and O n+1 The structural units satisfy: o is n+1 Round bottom and O n The difference of the circumferences of the circular cylinder bottoms is O n 6.28 times of the thickness of the circular cylinder body, O n+1 A circular barrel and O n The height difference of the round barrel body is O n 1/10-1/20 of the inner diameter of the circular cylinder bottom n+1 Circular cylinder bottom protrusion and O n The length difference of the bottom protrusions of the circular cylinder is O n 1/20-1/10 of the height of the round barrel body;
said O is m Structural unit consisting of m Circular cylinder bottom and O with protrusion m Formed by a circular barrel body, O m The protruding part of the round barrel body is stuck on the O m On the circular cylinder bottom, the protruding part edge O m The periphery of the round barrel body is uniformly distributed, and the protruding part is connected with O m The arc length of the round barrel body is O m The circumference of the round barrel body is 3-36 equal parts long; adjacent O m Structural unit and O m+1 The structural units satisfy: o is m+1 Round bottom and O m The difference of the perimeter of the circular cylinder bottom is O m Thickness of the cylindrical body 3.14 times, O m+1 Round bottom and O m The difference of the diameters of the circular cylinder bottoms is O m 1/5-1/20 of the inner diameter of the circular cylinder body m+1 Circular cylinder bottom protrusion and O m The length difference of the bottom protrusions of the circular cylinder is O m 1/20-1/5 of the inner diameter of the circular cylinder body;
the inner skin structure unit is composed of a second round barrel bottom and a second round barrel body, the diameter of the second round barrel bottom is equal to the diameter of the inner cavity of the rotary barrel body, the perimeter of the second round barrel body is equal to the perimeter of the inner cavity of the rotary barrel body, and the height of the second round barrel body is higher than the height of the inner cavity of the rotary barrel body.
8. A method for preparing an energetic material sandwich fiber composite rotating cylinder according to any one of claims 1 to 7, comprising the following steps:
(1) Preparing an energetic material blended resin film by adopting a calendering method, and then preparing a fiber prepreg containing an energetic material by adopting a roll-to-roll calendering mode in a configuration of the energetic material blended resin film-fiber fabric-energetic material blended resin film;
(2) According to the characteristics of each structural unit of a preset rotary cylinder, cutting fiber prepreg containing an energetic material and an energetic material blended resin film to obtain pre-laminated fiber prepreg containing the energetic material and the energetic material blended resin film;
(3) Preparing a die consisting of an inner male die and a female die, placing demolding cloth on the surface of the inner male die, raising the surface temperature of the inner male die to 30-50 ℃, then paving a layer of energy-containing material blended resin film as a substrate layer, keeping the surface temperature of the inner male die, and paving the pre-laminated fiber prepreg containing the energy-containing material and the energy-containing material blended resin film obtained in the step (2) on the inner male die in sequence according to the characteristics of each structural unit of the rotary cylinder body, and exhausting gas;
(4) Covering with air-permeable polytetrafluoroethylene fabric cloth and a silica gel cushion after laying 1-6 layers of structural units, heating the laid fiber prepreg containing the energetic material and the energetic material blended resin film to 30-80 ℃ by adopting a vacuum bag pressing process, and keeping for 10-30 min to compact and exhaust; after exhausting, sequentially taking down the vacuum bag, the silica gel cushion and the breathable polytetrafluoroethylene fabric cloth; repeating the steps until all the structural units are laid;
(5) Covering the surface of the outermost layer structure unit subjected to vacuum bag pressing treatment with air-permeable polytetrafluoroethylene fabric cloth, then enclosing and attaching a circle of stainless steel sheet, covering an outer female die and an upper cover plate, wrapping an air-guide medium on the outer surface of the die, sealing the outermost layer with a vacuum bag, and completing die assembly before curing;
(6) Placing the mould with the vacuum bag in an oven, monitoring the surface temperature of the mould in the vacuum bag, and heating the mould from room temperature to T h1 Keeping temperature t h1 Then from T h1 Heating to T h2 Keeping temperature t h2 Then the temperature is raised to T c Keeping temperature t c Fully solidifying, cooling to room temperature, and demolding to obtain the energy-containing material sandwich fiber composite material rotary cylinder; wherein, the T is h1 The temperature of the resin system used is raised to a temperature at which the isothermal viscosity is first below 10001mPa s to 20000mPa s, t h1 Is 1h to 5h, the T is h2 The temperature of the resin system used is raised to a temperature at which the isothermal viscosity is first below 5000 to 10000 mPas, t h2 Is 0.5 to 1 hour, the T is c For the resin system employed, the peak curing temperature at a temperature rise rate of 0, t c Is 1-8 h.
9. The method for preparing the rotary cylinder body made of the energetic material sandwich fiber composite material according to claim 8, wherein the volume fraction of the energetic material in the energetic material blended resin film is 1-80%, and the thickness of the energetic material blended resin film is 0.05-0.3 mm; the thickness of silica gel cushion is 0.5mm ~ 2mm, nonrust steel sheet is ultra-thin nonrust steel sheet, the thickness of nonrust steel sheet is 0.01mm ~ 0.1mm, the length and the outmost constitutional unit stack shell height of nonrust steel sheet equal, the width of nonrust steel sheet is the outer periphery of the outmost constitutional unit of 1/3 ~ 1/8.
10. The method for preparing the energetic material sandwich fiber composite material rotary cylinder body according to claim 8 or 9, wherein if the fiber volume fraction in the rotary cylinder body is lower than 35%, the fiber prepreg containing the energetic material and the energetic material blended resin film in the same structural unit are firstly flattened and laminated at the temperature of 30-50 ℃.
CN202211158811.5A 2022-09-22 2022-09-22 Energy-containing material sandwich fiber composite material rotary cylinder and preparation method thereof Active CN115503295B (en)

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CN107215039A (en) * 2017-06-07 2017-09-29 国电联合动力技术有限公司 A kind of core filled composite material and preparation method thereof
CN111016377A (en) * 2019-12-03 2020-04-17 航天特种材料及工艺技术研究所 Sandwich structure composite material and OOA preparation method thereof
US10670186B1 (en) * 2015-11-18 2020-06-02 Cornerstone Research Group, Inc. Fiber reinforced energetic composite

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US10670186B1 (en) * 2015-11-18 2020-06-02 Cornerstone Research Group, Inc. Fiber reinforced energetic composite
CN107215039A (en) * 2017-06-07 2017-09-29 国电联合动力技术有限公司 A kind of core filled composite material and preparation method thereof
CN111016377A (en) * 2019-12-03 2020-04-17 航天特种材料及工艺技术研究所 Sandwich structure composite material and OOA preparation method thereof

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