CN115503295B - Energy-containing material sandwich fiber composite material rotary cylinder and preparation method thereof - Google Patents

Energy-containing material sandwich fiber composite material rotary cylinder and preparation method thereof Download PDF

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Publication number
CN115503295B
CN115503295B CN202211158811.5A CN202211158811A CN115503295B CN 115503295 B CN115503295 B CN 115503295B CN 202211158811 A CN202211158811 A CN 202211158811A CN 115503295 B CN115503295 B CN 115503295B
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energetic material
cylinder body
circular cylinder
polymer matrix
rotary cylinder
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CN115503295A (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 a rotary cylinder of an energetic material sandwich fiber composite material and a preparation method thereof, wherein the rotary cylinder comprises an outer skin structure unit, a multi-layer sandwich structure unit and an inner skin structure unit which are sequentially arranged from outside to inside, and the multi-layer sandwich structure unit consists of odd sandwich structure units and even sandwich structure units which are alternately arranged; each structural unit is composed of a polymer matrix, energy-containing 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 fiber prepreg containing energetic materials, cutting and pre-superposing the fiber prepreg and the resin film blended with the energetic materials, sequentially paving the prepreg and the resin film on a die, compacting and exhausting, assembling the die and carrying out sectional solidification. The rotary cylinder has the advantages of variable and controllable energy-containing material types, good mechanical properties, orderly component distribution, simple preparation method and process, and is easy to realize large-scale production.

Description

Energy-containing 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 material structure-function integrated components, and particularly relates to an energy-containing material interlayer fiber composite material rotary cylinder and a preparation method thereof.
Background
The carbon fiber composite material has the advantages of high specific strength, high specific modulus, fatigue resistance, corrosion resistance, designability and the like, gradually replaces structural steel, aluminum alloy, titanium alloy and other metal structural materials, becomes a preferred structural material of aerospace equipment, and the cylindrical revolving body is the most common structural type in the aerospace equipment. In order to impart destructive properties to aerospace equipment, the energetic formation of structural materials is an effective solution. The preparation method of the general cylinder revolving body mainly comprises spinning, forging, milling, turning and the like. The above methods all belong to "subtractive manufacturing", and in order to ensure the load-bearing properties of the prepared material, the components thereof have been determined at the raw material preparation stage and are difficult to modify during the process of preparing the component. In addition, in the process of preparing these components, the high temperature and high pressure treatment process is generally involved, and the energetic material is usually a reactive material, and the reaction and energy release easily occur at high temperature and high pressure, which brings about unpredictable safety problems for preparing the components, so that the energetic material is 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 the component can be flexibly selected according to specific requirements, and the molding process conditions are mild, and the high-temperature and high-pressure molding process is not involved, so that the preparation method has the precondition of energy-containing.
The common method for introducing the energy-containing component into the carbon fiber composite material cylinder type revolving body is mainly two methods, namely, alternately laminating the energy-containing component into thin layers and the carbon fiber prepreg, and bonding the carbon fiber layer and the energy-containing component layer by utilizing the bonding property of matrix resin in the carbon fiber composite material. Secondly, the energy-containing components among the carbon fiber layers are mixed into matrix resin and are prepared by means of vacuum introduction, hand lay-up or wet winding. In the first method, the cohesive strength of the energetic material is generally not high, and the layer of energetic material is susceptible to failure under external loading, thereby reducing the strength of the component. In the second method, the resin viscosity is generally low. Because the energy-containing material is usually metal particles and the density is 2-10 times that of the resin matrix, sedimentation is easy to occur in the resin, and the problem of uneven distribution of particles in the component is easy to occur when the barrel component is prepared, so that the energy release effect of the composite material is affected, and the bearing performance is possibly reduced. In addition, since the addition of the particulate energetic material significantly improves the flowability of the resin, a large number of defects are easily introduced into the composite during molding. Therefore, the method has limited upper limit on the addition amount of the energetic material in the matrix and difficult flexible control of the content, which greatly limits the exertion of the energy release characteristic of the carbon fiber composite material cylinder revolving body.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and particularly provides an energetic material interlayer fiber composite material rotary cylinder with variable types of energetic materials, adjustable content in the cylinder and good mechanical property and a preparation method thereof, aiming at the problems that the cohesive strength of the energetic materials in the conventional composite material rotary cylinder is low, the distribution is uneven and the addition amount of the energetic materials in the cylinder is limited.
In order to solve the technical problems, the invention adopts the following technical scheme.
An energy-containing material sandwich fiber composite material rotary cylinder body comprises a rotary cylinder body from outside to outsideThe inner part is sequentially provided with an outer skin structure unit, a multi-layer sandwich structure unit and an inner skin structure unit, wherein the multi-layer sandwich structure unit consists of odd-numbered sandwich structure units and even-numbered sandwich structure units which are alternately arranged; the outer skin structure unit consists of a first polymer matrix, a first energy-containing 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-numbered sandwich structure units is N, and the N-th odd-numbered sandwich structure units are marked as O n Structural unit, N is more than or equal to 1 and less than or equal to N, and N is a positive integer, wherein O is n Structural unit is composed of O n Polymer matrix, distributed in O n O in a polymer matrix n Energetic material and 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 M-th odd sandwich structure unit as O m Structural unit, M is more than or equal to 1 and less than or equal to M, wherein M is a positive integer, and O is m Structural unit is composed of O m Polymer matrix, distributed in O m O in a polymer matrix m Energetic material and O m O inside the polymer matrix m The inner skin structure unit consists of a second polymer matrix, a second energy-containing 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 unit, the odd sandwich structure unit, the even sandwich structure unit and the inner skin structure unit are all in cylinder structures, and the thickness is 0.11 mm-0.8 mm; the first bearing layer, O n Bearing layer, O m The bearing layer and the second bearing layer are fiber fabric layers.
In the rotary cylinder, each structural unit can 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, and the operation such as vacuum bag pressing, compaction, exhaust, solidification and the like can be carried out in the process.
The energy-containing material sandwich fiber composite material rotary cylinder is preferably 1-10 in N and 1-10 in M.
Preferably, the first energetic material, O n Energetic material, O m The second energy-containing material is granular, fibrous or sheet, and the first energy-containing material, O n Energetic material, O m The dimension of the appearance characteristic of the energetic material and the second energetic material is 0.1 μm to 50 μm.
Preferably, the first energetic material, O n Energetic material, O m The energetic material, the second energetic material, is selected from one or more of particulate materials composed of nonmetallic elements, metallic elements, alloys or polymers, the energetic material has a particle diameter of 1 μm to 20 μm, the nonmetallic elements include one or more of B, C and P, the metallic elements include one or more of Al, fe, co, ni, ta and Ti, the alloys include aluminum magnesium alloys, and the polymers include one or more of polyvinylidene fluoride, polytetrafluoroethylene and tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride copolymers.
Preferably, the first energetic material, O n Energetic material, O m The energy-containing material and the second energy-containing material are uniformly dispersed in the polymer matrix of the corresponding structural unit, and the first energy-containing material and 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 and O n Bearing layer, O m The bearing layer and the second bearing layer have different layering angles, and the first bearing layer and the O n Bearing layer, O m The thickness of the bearing layer and the second bearing layer is 0.1 mm-0.3 mm; the first bearing layer, O n Bearing layer, O m The surfaces of the bearing layer and the second bearing layer are embedded with energy-containing materials, the thickness of the embedded energy-containing materials is in the range of 0.5-3.5 mu m, and the volume fraction of the embedded energy-containing 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 fibers of the fiber fabric layer comprise one or more of carbon fibers, glass fibers, ultra-high molecular weight polyethylene fibers, kevlar fibers, PBO fibers, boron fibers and tungsten core fibers with boron deposited on the surface.
The energy-containing 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.
In the above energy-containing material sandwiched fiber composite material rotary cylinder, 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 outer circumference of the rotary cylinder body, and the height of the first circular cylinder body is equal to the outer circumference of the rotary cylinder body.
The energy-containing material sandwich fiber composite material rotary cylinder, preferably, the O n Structural unit is composed of O n Round barrel and O with protruding part n Round barrel bottom structure, O n The protruding part of the round barrel bottom is attached to O n The protruding part is arranged on the outer wall of the circular cylinder body along the direction O n The circumference of the round barrel bottom is uniformly distributed, and the protruding part is connected with O n The arc length of the round barrel bottom is O n 3-36 equal parts of the circumference of the circular cylinder bottom; adjacent O n Structural unit and O n+1 The structural units satisfy the following conditions: o (O) n+1 Round barrel bottom and O n The circumference difference of the round cylinder bottom is O n 6.28 times of the thickness of the circular cylinder body, O n+1 Round barrel and O n Circular barrelThe difference in height is O n 1/10-1/20 of the inner diameter of the circular cylinder bottom, O n+1 Round barrel bottom protruding part and O n The difference between the lengths of the protruding parts of the circular cylinder bottom is O n The height of the circular cylinder is 1/20-1/10.
The energy-containing material sandwich fiber composite material rotary cylinder, preferably, the O m Structural unit is composed of O m Round barrel bottom and O with protruding part m Round barrel body structure O m The protruding part of the circular cylinder body is attached to O m On the circular cylinder bottom, the protruding part is along O m The periphery of the circular cylinder body is uniformly distributed, and the protruding part is connected with O m The arc length of the circular cylinder body is O m 3-36 equal parts of the circumference of the circular cylinder body; adjacent O m Structural unit and O m+1 The structural units satisfy the following conditions: o (O) m+1 Round barrel bottom and O m The circumference difference of the round cylinder bottom is O m 3.14 times of the thickness of the circular cylinder body, O m+1 Round barrel bottom and O m The diameter difference of the round cylinder bottom is O m 1/5 to 1/20 of the inner diameter of the circular cylinder body, O m+1 Round barrel bottom protruding part and O m The difference between the lengths of the protruding parts of the circular cylinder bottom is O m 1/20 to 1/5 of the inner diameter of the circular cylinder body.
Preferably, the inner skin structure 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 the 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 equal to the height of the inner cavity of the rotary cylinder body.
The invention also provides a preparation method of the energy-containing material sandwich fiber composite material rotary cylinder body, which comprises the following steps:
(1) Preparing an energetic material blending resin film by adopting a calendaring method, and then preparing a fiber prepreg containing an energetic material by adopting a roll-to-roll calendaring method according to the configuration of the energetic material blending resin film, the fiber fabric and the energetic material blending resin film;
(2) Cutting the fiber prepreg containing the energetic material and the resin film blended with the energetic material according to the characteristics of each preset structural unit of the rotary cylinder body to obtain a pre-overlapped fiber prepreg containing the energetic material and the resin film blended with the energetic material;
(3) Preparing a die consisting of an inner male die and a male die, placing a demolding cloth on the surface of the inner male die, heating the surface temperature of the inner male die to 30-50 ℃, then paving a layer of energy-containing material blending resin film as a basal layer, keeping the surface temperature of the inner male die, sequentially paving the pre-laminated fiber prepreg containing the energy-containing material and the energy-containing material blending resin film obtained in the step (2) on the inner male die according to the characteristics of each structural unit of a rotary cylinder, and exhausting gas;
(4) Covering a breathable polytetrafluoroethylene fabric cloth and a silica gel cushion after each layer of 1-6 layers of structural units are paved, heating the paved fiber prepreg containing the energetic material and the resin film blended by the energetic material to 30-80 ℃ and keeping for 10-30 min by adopting a vacuum bag pressing process so as to compact and exhaust; sequentially taking down the vacuum bag, the silica gel cushion and the breathable polytetrafluoroethylene fabric cloth after exhausting; reciprocating in this way until all the structural units are paved;
(5) Covering the surface of the outermost layer structure unit subjected to the vacuum bag pressing treatment with breathable polytetrafluoroethylene fabric, enclosing and pasting 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 by using a vacuum bag, and completing die assembly before curing;
(6) Placing the mold with the vacuum bag in an oven, monitoring the surface temperature of the mold in the vacuum bag, and raising the temperature of the mold from room temperature to T h1 Thermal insulation t h1 Then from T h1 Heating to T h2 Thermal insulation t h2 Then the temperature is increased to T c Thermal insulation t c Fully solidifying, cooling to room temperature, and demoulding to obtain the energy-containing material sandwich fiber composite material rotary cylinder; wherein the T is h1 For the temperature of the resin system used to rise to a temperature at which the isothermal viscosity is for the first time below 10001 mPas to 20000 mPas, said t h1 1 to 5 hours, the T h2 To the temperature of the resin system to be used is increased to be equalA temperature at which the temperature viscosity is less than 5000 mPas to 10000 mPas for the first time, t h2 0.5 to 1h, T c For the peak curing temperature of the resin system employed at a ramp rate of 0, t c 1 to 8 hours.
In the preparation method of the energetic material interlayer fiber composite material rotary cylinder, preferably, the volume fraction of the energetic material in the energetic material blending resin film is 1% -80%, and the thickness of the energetic material blending resin film is 0.05-0.3 mm; the thickness of the silica gel cushion is 0.5 mm-2 mm, the stainless steel sheet is an ultrathin stainless steel sheet, the thickness of the stainless steel sheet is 0.01 mm-0.1 mm, the length of the stainless steel sheet is equal to the height of the cylinder body of the outermost structural unit, and the width of the stainless steel sheet is 1/3-1/8 of the outer circumference of the outermost structural unit.
In the preparation method of the energetic material interlayer fiber composite material rotary cylinder, preferably, if the fiber volume fraction in the rotary cylinder is lower than 35%, the fiber prepreg containing the energetic material and the energetic material blending resin film of the same structural unit are firstly subjected to flat lamination at the temperature of 30-50 ℃.
In the invention, the bearing layer mainly plays a bearing and supporting role on the whole rotary cylinder body, and is a source of 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 capability.
In the present invention, the constituent materials of the respective structural units may be the same or different.
In the invention, O n The circumference of the circular cylinder bottom is equal to O n Outer circumference of circular cylinder body, O m The circumference of the circular cylinder bottom is equal to O m The outer circumference of the circular barrel.
The invention discloses an energy-containing material sandwich fiber composite material rotary cylinder which is manufactured by a metal forming die consisting of an ejection mechanism, an inner male die, a plurality of tile outer female dies and an upper cover plate through a hot vacuum bag pressing forming process without external pressure assistance or external pressure assistance.
Compared with the prior art, the invention has the advantages that:
1. the energetic material sandwich fiber composite material rotary cylinder has the characteristics of high energetic component content, flexible and variable energetic component/content and good cylinder bearing performance. 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, if the prior art is adopted, namely the energetic material is directly attached to the surface of the composite material, the defect of insufficient structural strength is caused, and the complex three-dimensional composite material structure is decomposed into an outer skin structural unit, a multi-layer sandwich structural unit and an inner skin structural unit. The energy-containing material interlayer carbon fiber composite material rotary cylinder has wide application fields on a structure-energy release integrated structure.
2. The preparation method of the invention designs a set of layering 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 bottom and the body of the rotary cylinder of the composite material, improves the resin film melting and dipping method, reasonably distributes the resin film among all the structural units, ensures the designability and the integrity of each structural unit, realizes 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, low content of the energetic material in the cylinder, low bearing performance of the cylinder and the like of the conventional energetic carbon fiber composite material rotary cylinder.
Drawings
FIG. 1 is a diagram of an energy-containing material sandwiched fiber composite rotary barrel O according to example 1 of the present invention n Structural unit and O m Structural schematic and lay-up mode of the structural unit.
FIG. 2 is a photograph of the front and cross-section of a rotary cylinder of energetic material intercalated fiber composite material prepared in example 1 of the present invention.
FIG. 3 is a photograph of the front and cross-section of a rotary cylinder of energetic material intercalated fiber composite material prepared in example 2 of the present invention.
Fig. 4 is a photograph of the front and cross-section of the energetic material sandwich fiber composite material rotary cylinder prepared in comparative example 1.
FIG. 5 is a photograph of the front and cross-section of an energetic material sandwich fiber composite material rotary cylinder prepared in comparative example 2.
Detailed Description
The invention is further described below in connection with the drawings and the specific preferred embodiments, but the scope of protection of the invention is not limited thereby. In the following examples, the materials and equipment used are commercially available unless otherwise specified.
Example 1:
the invention relates to an energy-containing material sandwich fiber composite material rotary cylinder, which comprises an outer skin structure unit, a multi-layer sandwich structure unit and an inner skin structure unit which are sequentially arranged from outside to inside, wherein the multi-layer sandwich structure unit consists of odd-numbered sandwich structure units and even-numbered sandwich structure units which are alternately arranged; the outer skin structure unit consists of a first polymer matrix, a first energy-containing 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-numbered sandwich structure units is 7, namely N is 8, N is more than or equal to 1 and less than or equal to 7, namely O is divided into the odd-numbered sandwich structure units 1 、O 2 、O 3 、O 4 、O 5 、O 6 、O 7 、O 8 Structural unit O n Structural unit is composed of O n Polymer matrix, distributed in O n O in a polymer matrix n Energetic material and O n O inside the polymer matrix n The bearing layer is composed of an even number of sandwich structure units in the embodiment of 8, namely M is 7, M is more than or equal to 1 and less than or equal to 7,O m Structural unit is composed of O m Polymer matrix, distributed in O m O in a polymer matrix m Energetic material and O m O inside the polymer matrix m The bearing layer is composed of a polymer matrix, energy-containing materials distributed in the polymer matrix and an inner skin structure unit arranged on the inner side of the polymer matrixThe bearing layer is formed. The barrel height of the rotary barrel in this example was 215mm, the barrel outside diameter was 100mm, the wall thickness was 5.5mm, and the fiber volume fraction was 50%. The rotary cylinder is obtained by laminating 17 structural units, and the thickness of each structural unit is 0.32mm.
In this embodiment, 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 embodiment, the first energetic material, O n Energetic material, O m The energy-containing material and the second energy-containing material are uniformly dispersed in the polymer matrix of the corresponding structural unit, the first energy-containing 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 thickness of the polymer matrix containing the energetic material, i.e. the energetic layer, was 0.12mm. The energy-containing layer is a solid layer of an energy-containing material of 5 μm Al diameter and 20 μm Ta metal particle diameter embedded in a multicomponent epoxy matrix with a thickness of 0.12mm.
In this embodiment, the first carrier layer, O n Bearing layer, O m The layering angle between the bearing layer and the second bearing layer is 30 DEG, the first bearing layer is O n Bearing layer, O m The thickness of the bearing layer and the second bearing layer is 0.2mm; first bearing layer O n Bearing layer, O m The surfaces of the bearing layer and the second bearing layer are 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 bearing 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 embodiment, a first polymer matrix, O 3 Polymer matrix, O 4 The polymer matrix and the second polymer matrix are both formed by curing carboxyl terminated nitrile 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, wherein 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 outer circumference of the rotary cylinder body, and the height of the first circular cylinder body is equal to the outer circumference of the rotary cylinder body.
In this embodiment, as shown in FIG. 1, O n Structural unit is composed of O n Circular cylinder (in the figure, the expanded view of the circular cylinder) and O with protruding part (i.e. protruding turning edge, length h) n Round barrel bottom structure, O n The protruding part of the round barrel bottom is attached to O n On the outer wall of the circular cylinder body, the protruding part is along O n The circumference of the round barrel bottom is uniformly distributed, and the protruding part is connected with O n The arc length of the round barrel bottom is O n The circumference of the circular cylinder bottom is 8 equal parts long; adjacent O n Structural unit and O n+1 The structural units satisfy the following conditions: o (O) n+1 Round barrel bottom and O n The circumference difference of the round cylinder bottom is O n 6.28 times of the thickness of the circular cylinder body, O n+1 Round barrel and O n The difference between the heights of the circular cylinder bodies is O n 1/10 of the inner diameter of the circular cylinder bottom, O n+1 Round barrel bottom protruding part and O n The difference between the lengths of the protruding parts of the circular cylinder bottom is O n The height of the circular cylinder is 1/10.
In this embodiment, as shown in FIG. 1, O m Structural unit is composed of O m Circular bottom (in the figure, the expanded view of the circular barrel) and O with protruding part (i.e. protruding turning edge, length h) m Round barrel body structure O m The protruding part of the circular cylinder body is attached to O m On the circular cylinder bottom, the protruding part is along O m The periphery of the circular cylinder 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 8 equal parts of the periphery of the circular cylinder body are long; adjacent O m Structural unit and O m+1 The structural units satisfy the following conditions: o (O) m+1 Round barrel bottom and O m The circumference difference of the round cylinder bottom is O m 6.28 times of the thickness of the circular cylinder body, O m+1 Round barrel bottom and O m The diameter difference of the round cylinder bottom is O m 1/5,O of the inner diameter of a circular cylinder m+1 Circular barrel bottom protruding partWith O m The difference between the lengths of the protruding parts of the circular cylinder bottom is O m 1/5 of the inner diameter of the circular cylinder body.
In this embodiment, the inner skin structure 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 the 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 equal to the height of the inner cavity of the rotary cylinder body.
The preparation method of the energetic material interlayer fiber composite material rotary cylinder comprises the following steps:
(1) The energy-containing material blend resin film is prepared by adopting a calendaring method on a commercial gumming machine, and then the fiber prepreg containing the energy-containing material is prepared by adopting a roll-to-roll calendaring method on a commercial coating machine by using the two rolls of the resin film and the fiber fabric prepared by the above method according to the configuration of the energy-containing material blend resin film-fiber fabric-energy-containing material blend resin film.
(2) Cutting the fiber prepreg containing the energetic material and the resin film blended with the energetic material on a full-automatic commercially available cloth cutting machine according to the characteristics of each structure unit of the preset rotary cylinder body to obtain the pre-overlapped fiber prepreg containing the energetic material and the resin film blended with the energetic material, and scraping the surface by a hard epoxy plate to remove gas inclusion. The energetic material blending 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 female mould, placing release cloth on the surface of the inner male mould, heating the surface temperature of the inner male mould to 30 ℃, and then paving a layer of energy-containing material blending resin film as a basal layer, so that the adhesion between prepreg and the surface of the mould is improved, and meanwhile, the air inclusion in the inner wall of the cylinder is reduced. Maintaining the surface temperature of the inner male die, sequentially paving the pre-laminated fiber prepreg containing the energetic material and the resin film blended with the energetic material obtained in the step (2) on the inner male die according to the characteristics of each structural unit of the rotary cylinder, and exhausting gas.
(4) Covering a breathable polytetrafluoroethylene fabric and a silica gel cushion after each layer of structural units are paved, heating the paved fiber prepreg and energetic material blending resin film to 50 ℃ by adopting a vacuum bag pressing process, and keeping for 20min so as to compact and exhaust; sequentially taking down the vacuum bag, the silica gel cushion and the breathable polytetrafluoroethylene fabric cloth after exhausting; this step needs to be repeated 4 times.
(5) Covering the surface of the outermost layer structure unit after the vacuum bag pressing treatment with breathable polytetrafluoroethylene fabric, enclosing and pasting a circle of stainless steel sheets, covering an outer female die and an upper cover plate, wrapping an air guide medium on the outer surface of the die, sealing the vacuum bag, and completing die assembly before solidification.
(6) Placing the mold with the vacuum bag packaged 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, heating the mold from 80 ℃ to 100 ℃, preserving heat for 1h, heating the mold to 120 ℃, preserving heat for 2h, fully solidifying, cooling to room temperature, and demolding to obtain the energetic material sandwich fiber composite material rotary cylinder, as shown in figure 2.
In the embodiment, the volume fraction of the energetic material in the energetic material blend resin film is 50%, and the thickness of the energetic material blend resin film is 0.06mm; the thickness of the silica gel cushion is 2mm, the stainless steel sheet is an ultrathin stainless steel sheet, the thickness is 0.05mm, the length is equal to the height of the outermost cylinder, and the width is 1/8 of the outer circumference of the cylinder.
Example 2
The energetic material sandwich fiber composite material rotary cylinder of the present invention is substantially the same as example 1 except that: the fiber volume fraction in the rotary cylinder is 15%, the multi-layer laminated structure is provided with 8 structural units, the number of odd layers is 3, and the number of even layers is 3. The thickness of the 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 structural photograph of the rotary cylinder is shown in fig. 3.
The preparation process of the energetic material interlayer fiber composite material rotary cylinder of the embodiment is basically the same as that of embodiment 1, and the difference is that: in the step (2), after the resin film and the prepreg are cut, the temperature is controlled to be 40 ℃ on a bottom surface temperature control platform, the resin film and the prepreg of the layer of structural unit are flatly attached to the temperature control platform layer by using a flat iron with a heating function, and the temperature control of the flat iron is consistent with that of the temperature control platform during attachment. In the step (4), after 1 layer is paved, the paved prepreg and the resin film are heated to 40 ℃ by adopting a vacuum bag pressing process and then kept for 10 minutes to compact the paved layer, and air bubbles mixed between the paved layers are discharged.
Comparative example 1
The basic geometry, materials, and structural units of the cartridge in this comparative example were exactly the same as in example 1. The preparation process of the energetic material interlayer fiber composite material rotary cylinder of the comparative example is basically the same as that of the example 1, and the only difference is that: the step (4) is not adopted for carrying out the layer-by-layer compaction, and the bubbles are eliminated. As shown in fig. 4, the shape of the rotary cylinder is found to have a plurality of folds, and the section of the cylinder has a plurality of air hole defects.
Comparative example 2
The basic geometry, materials, and structural units of the cartridge in this comparative example were exactly the same as in example 2. The preparation process of the energetic material interlayer fiber composite material rotary cylinder of the comparative example is basically the same as that of the example 2, and the only difference is that: in the step (6), multi-stage heating is not adopted, and the die is directly heated to the curing temperature of 120 ℃. As shown in FIG. 5, the defect of a plurality of air holes at the section of the cylinder body when the temperature is directly raised to 120 ℃ can be found, and the curing system of the invention is helpful for removing a large number of bubbles before the gel point of the energy-containing resin film and improving the structural strength of the rotary cylinder body.
The above description is only of the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. While the invention has been described in terms of preferred embodiments, it is not intended to be limiting. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present invention or equivalent embodiments using the method and technical solution disclosed above without departing from the spirit and technical solution of the present invention. Therefore, any simple modification, equivalent substitution, equivalent variation and modification of the above embodiments according to the technical substance of the present invention, which do not depart from the technical solution of the present invention, still fall within the scope of the technical solution of the present invention.

Claims (6)

1. The rotary cylinder is characterized by comprising an outer skin structure unit, a multi-layer sandwich structure unit and an inner skin structure unit which are sequentially arranged from outside to inside, wherein the multi-layer sandwich structure unit consists of odd-numbered sandwich structure units and even-numbered sandwich structure units which are alternately arranged; the outer skin structure unit consists of a first polymer matrix, a first energy-containing 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-numbered sandwich structure units is N, and the N-th odd-numbered sandwich structure units are marked as O n Structural unit, N is more than or equal to 1 and less than or equal to N, and N is a positive integer, wherein O is n Structural unit is composed of O n Polymer matrix, distributed in O n O in a polymer matrix n Energetic material and 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 M-th odd sandwich structure unit as O m Structural unit, M is more than or equal to 1 and less than or equal to M, wherein M is a positive integer, and O is m Structural unit is composed of O m Polymer matrix, distributed in O m O in a polymer matrix m Energetic material and O m O inside the polymer matrix m The inner skin structure unit consists of a second polymer matrix, a second energy-containing 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 unit, the odd sandwich structure unit, the even sandwich structure unit and the inner skin structure unit are all in cylinder structures, and the thickness is 0.11 mm-0.8 mm; the first bearing layer, O n Bearing layer, O m The bearing layer and the second bearing layer are fiber fabric layers;
the first energetic material, O n Energetic material, O m The second energetic material is selected from one or more of particle materials composed of nonmetallic elements, metallic elements, alloys or polymersParticle diameters of 1-20 μm, the nonmetallic elements include one or more of B, C and P, the metallic elements include one or more of Al, fe, co, ni, ta and Ti, the alloy includes an aluminum magnesium alloy, and the polymer includes one or more of polyvinylidene fluoride, polytetrafluoroethylene and tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride copolymer;
the first energetic material, O n Energetic material, O m The energy-containing material and the second energy-containing material are uniformly dispersed in the polymer matrix of the corresponding structural unit, and the first energy-containing material and 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%;
the first bearing layer, O n Bearing layer, O m The bearing layer and the second bearing layer have different layering angles, and the first bearing layer and the O n Bearing layer, O m The thickness of the bearing layer and the second bearing layer is 0.1 mm-0.3 mm; the first bearing layer, O n Bearing layer, O m The surfaces of the bearing layer and the second bearing layer are embedded with energy-containing materials, the thickness of the embedded energy-containing materials is in the range of 0.5 mu m to 3.5 mu m, and the volume fraction of the embedded energy-containing 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 fibers of the fiber fabric layer comprise one or more of carbon fibers, glass fibers, ultra-high molecular weight polyethylene fibers, kevlar fibers, PBO fibers, boron fibers and tungsten core fibers with boron deposited on the surface;
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.
2. The energetic material sandwich fiber composite material rotary cylinder of claim 1, wherein N is 1 to 10 and m is 1 to 10.
3. The energetic material interlayer fiber composite material rotary cylinder according to claim 1 or 2, wherein 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 outer circumference of the rotary cylinder body, and the height of the first circular cylinder body is equal to the outer circumference of the rotary cylinder body;
the O is n Structural unit is composed of O n Round barrel and O with protruding part n Round barrel bottom structure, O n The protruding part of the round barrel bottom is attached to O n The protruding part is arranged on the outer wall of the circular cylinder body along the direction O n The circumference of the round barrel bottom is uniformly distributed, and the protruding part is connected with O n The arc length of the round barrel bottom is O n 3-36 equal parts of the circumference of the circular cylinder bottom; adjacent O n Structural unit and O n+1 The structural units satisfy the following conditions: o (O) n+1 Round barrel bottom and O n The circumference difference of the round cylinder bottom is O n 6.28 times of the thickness of the circular cylinder body, O n+1 Round barrel and O n The difference between the heights of the circular cylinder bodies is O n 1/10-1/20 of the inner diameter of the circular cylinder bottom, O n+1 Round barrel bottom protruding part and O n The difference between the lengths of the protruding parts of the circular cylinder bottom is O n The height of the circular cylinder is 1/20-1/10;
the O is m Structural unit is composed of O m Round barrel bottom and O with protruding part m Round barrel body structure O m The protruding part of the circular cylinder body is attached to O m On the circular cylinder bottom, the protruding part is along O m The periphery of the circular cylinder body is uniformly distributed, and the protruding part is connected with O m The arc length of the circular cylinder body is O m 3-36 equal parts of the circumference of the circular cylinder body; adjacent O m Structural unit and O m+1 The structural units satisfy the following conditions: o (O) m+1 Round barrel bottom and O m The circumference difference of the round cylinder bottom is O m 3.14 times of the thickness of the circular cylinder body, O m+1 Round barrel bottom and O m The diameter difference of the round cylinder bottom is O m 1/5 to 1/20 of the inner diameter of the circular cylinder body, O m+1 Round barrel bottom protruding part and O m The difference between the lengths of the protruding parts of the circular cylinder bottom is O m 1/20 to 1/5 of the inner diameter of the circular cylinder body;
the inner skin structure 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 the 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 equal to the height of the inner cavity of the rotary cylinder body.
4. A method of preparing an energetic material sandwich fibre composite rotary cylinder according to any one of claims 1 to 3, comprising the steps of:
(1) Preparing an energetic material blending resin film by adopting a calendaring method, and then preparing a fiber prepreg containing an energetic material by adopting a roll-to-roll calendaring method according to the configuration of the energetic material blending resin film, the fiber fabric and the energetic material blending resin film;
(2) Cutting the fiber prepreg containing the energetic material and the resin film blended with the energetic material according to the characteristics of each preset structural unit of the rotary cylinder body to obtain a pre-overlapped fiber prepreg containing the energetic material and the resin film blended with the energetic material;
(3) Preparing a die consisting of an inner male die and a male die, placing a demolding cloth on the surface of the inner male die, heating the surface temperature of the inner male die to 30-50 ℃, then paving a layer of energy-containing material blending resin film as a basal layer, keeping the surface temperature of the inner male die, sequentially paving the pre-laminated fiber prepreg containing the energy-containing material and the energy-containing material blending resin film obtained in the step (2) on the inner male die according to the characteristics of each structural unit of a rotary cylinder, and exhausting gas;
(4) Covering a breathable polytetrafluoroethylene fabric cloth and a silica gel cushion after each layer of 1-6 layers of structural units are paved, heating the paved fiber prepreg containing the energetic material and the resin film blended by the energetic material to 30-80 ℃ and keeping for 10-30 min by adopting a vacuum bag pressing process so as to compact and exhaust; sequentially taking down the vacuum bag, the silica gel cushion and the breathable polytetrafluoroethylene fabric cloth after exhausting; reciprocating in this way until all the structural units are paved;
(5) Covering the surface of the outermost layer structure unit subjected to the vacuum bag pressing treatment with breathable polytetrafluoroethylene fabric, enclosing and pasting 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 by using a vacuum bag, and completing die assembly before curing;
(6) Placing the mold with the vacuum bag in an oven, monitoring the surface temperature of the mold in the vacuum bag, and raising the temperature of the mold from room temperature to T h1 Thermal insulation t h1 Then from T h1 Heating to T h2 Thermal insulation t h2 Then the temperature is increased to T c Thermal insulation t c Fully solidifying, cooling to room temperature, and demoulding to obtain the energy-containing material sandwich fiber composite material rotary cylinder; wherein the T is h1 For the temperature of the resin system adopted to rise to a temperature when the isothermal viscosity is lower than 10001mPa ∙ s to 20000mPa ∙ s for the first time, the t h1 1 to 5 hours, the T h2 For the temperature of the resin system adopted to rise to a temperature when the isothermal viscosity is lower than 5000mPa ∙ s-10000 mPa ∙ s for the first time, the t h2 0.5 to 1h, T c For the peak curing temperature of the resin system employed at a ramp rate of 0, t c 1 h-8 h.
5. The method for preparing the energetic material interlayer fiber composite material rotary cylinder according to claim 4, wherein the volume fraction of the energetic material in the energetic material blending resin film is 1% -80%, and the thickness of the energetic material blending resin film is 0.05-0.3 mm; the thickness of the silica gel cushion is 0.5 mm-2 mm, the stainless steel sheet is an ultrathin stainless steel sheet, the thickness of the stainless steel sheet is 0.01 mm-0.1 mm, the length of the stainless steel sheet is equal to the height of the cylinder body of the outermost structural unit, and the width of the stainless steel sheet is 1/3-1/8 of the outer circumference of the outermost structural unit.
6. The method for manufacturing a rotary cylinder of an energetic material interlayer fiber composite material according to claim 4 or 5, wherein if the fiber volume fraction in the rotary cylinder is lower than 35%, the fiber prepreg containing the energetic material and the resin film blended with the energetic material of the same structural unit are firstly subjected to flat lamination at 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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Publication number Priority date Publication date Assignee Title
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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Publication number Priority date Publication date Assignee Title
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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