CN110356071A - A kind of camouflage composite material moulding process and application - Google Patents

A kind of camouflage composite material moulding process and application Download PDF

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Publication number
CN110356071A
CN110356071A CN201810318322.9A CN201810318322A CN110356071A CN 110356071 A CN110356071 A CN 110356071A CN 201810318322 A CN201810318322 A CN 201810318322A CN 110356071 A CN110356071 A CN 110356071A
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China
Prior art keywords
glass fibre
alkali
layers
free glass
prepreg cloth
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CN201810318322.9A
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Chinese (zh)
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CN110356071B (en
Inventor
宋庆祥
张力存
曲学功
崔宏伟
宋福建
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Shandong Grad Group Co Ltd
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Shandong Grad Group Co Ltd
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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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/02—Layer formed of wires, e.g. mesh
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/14—Layered products comprising a layer of metal 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • 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
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B32B3/085—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts spaced apart pieces on the surface of a 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
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • 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
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    • 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
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    • 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
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • 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
    • 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
    • B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H3/00—Camouflage, i.e. means or methods for concealment or disguise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0471—Layered armour containing fibre- or fabric-reinforced layers
    • F41H5/0478—Fibre- or fabric-reinforced layers in combination with plastics layers
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/02—Coating on the layer surface on 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • 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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—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
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/714—Inert, i.e. inert to chemical degradation, corrosion
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2311/00—Metals, their alloys or their compounds
    • B32B2311/12—Copper
    • 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
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2571/00—Protective equipment
    • B32B2571/02—Protective equipment defensive, e.g. armour plates, anti-ballistic clothing

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Laminated Bodies (AREA)
  • Reinforced Plastic Materials (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

The invention belongs to technical field of composite materials, in particular to a kind of camouflage composite material, from outside inward successively including: that polyurea protection layer (1), two layers of alkali-free glass fibre epoxy prepreg cloth (2,3), aramid fiber honeycomb are inhaled wave plate (4), two layers of alkali-free glass fibre epoxy prepreg cloth (5,6), 120 mesh copper sieves (7), are bonded between two layers of each layer of alkali-free glass fibre epoxy prepreg cloth (8,9), the present invention well inhales wave energy and long service life, construction efficiency are high.

Description

A kind of camouflage composite material moulding process and application
Technical field
The invention belongs to technical field of composite materials, in particular to a kind of Stealth Fighter material；
Background technique
In modern war, in order to more effectively " save oneself, eliminate enemy ", stealth technology has obtained tremendous development. It has been applied to develop the various Stealth weapons such as invisbile plane, stealth missile, stealth tank, stealthy ship, some developments Succeed and puts into battlefield use.With the development and application of stealth technology, will occur on future battlefield more and more various Stealth weapons.This will greatly improve the survival ability, penetration ability and fighting efficiency of weaponry, and it is flat to break established attacking and defending Weighing apparatus pushes the various detection systems in system of defense that major transformation occurs.The patent provides a kind of camouflage composite material molding work Skill and application have been applied to the wheel hub cover of military combat tank at present, play stealthy protective action；
Summary of the invention
The technical scheme is that
A kind of camouflage composite material, it is characterized in that from outside inward successively including: polyurea protection layer (1), alkali-free glass fibre Epoxy prepreg cloth (2,3), aramid fiber honeycomb inhale wave plate (4), alkali-free glass fibre epoxy prepreg cloth (5,6), 120 mesh copper sieves (7) And it is bonded between alkali-free glass fibre epoxy prepreg cloth (8,9) each layer.
Further, the polyurea protection layer (1) is with a thickness of 0.9~1.1mm, two layers of alkali-free glass fibre epoxy prepreg cloth (2,3) thickness in monolayer is 0.2mm, aramid fiber honeycomb inhales wave plate (3) with a thickness of 8.5mm or 4.0mm, two layers of alkali-free glass fibre ring Oxygen prepreg cloth (5,6) thickness in monolayer is 0.2mm, 120 mesh copper sieves (7) are pre- with a thickness of 0.2mm, two layers of alkali-free glass fibre epoxy Leaching cloth (8,9) thickness in monolayer is 0.2mm；
A kind of camouflage composite material moulding process as described above, it is characterized in that the following steps are included:
A. two layers of alkali-free glass fibre epoxy prepreg cloth (2,3), aramid fiber honeycomb are inhaled into wave plate (4), two in sequence Layer alkali-free glass fibre epoxy prepreg cloth (5,6), 120 mesh copper sieves (7), two layers of alkali-free glass fibre epoxy prepreg cloth (8,9) It is bonded between each layer.It is bonded under the vacuum pressure that pressure is -0.095~-0.1MPa, while heating 80~90 DEG C, protect The warm dwell time is 100min~200min progress；
B. it cuts: stealthy plate after molding is cut by required compact dimensions requirement, and by the stealthy plate after cutting The corresponding aramid fiber honeycomb of lateral profile inhales wave plate (4) and carries out drawing side processing, and drawing side depth is 3mm~7mm or so；
C., glass fibre reinforced plastic prop mounting hole is set at a certain distance, and seals adhering glass steel in place glass fibre reinforced plastic prop mounting hole Column；
D. it is drawn in aramid fiber honeycomb suction wave plate (4) and is sealed processing at side；
E. the stealthy plate of encapsulation process is pasted with stealthy device is needed, blending bolt passes through glass fibre reinforced plastic prop will be described Device is fixed；
F. polyurea protection layer (1) spraying is carried out in outermost layer.
Further, step C, the edge sealing putty of encapsulation process described in D are as follows: by epoxy resin JL220A, the glass of 120 mesh Microballon, 400 mesh white carbon blacks are to carry out be deployed into mixed adhesive at 100: 15: 25 by weight；Again by the mixed adhesive with Epoxy hardener JL220B is carried out being deployed into the edge sealing putty by 140: 25 parts by weight.
Further, it is bonded in described in step A under the vacuum pressure that pressure is -0.095~-0.1MPa, while heating 80 ~90 DEG C, the heat-insulation pressure keeping time is 240min progress.
Further, using SPUA-M200, polyurea materials, the material are double groups to polyurea protection layer described in step F at a slow speed Part aliphatic polyurea material, coating are made of component A and B component.The material need to be matched with D-31 priming paint, poly- to improve The adhesive force of urea protective coating.
The present invention the beneficial effect is that: the present invention using structural wave-absorbing material as inhale wave layer, honeycomb sandwich structures, Light weight, mechanical property is good, and has good heat preservation and insulation.Alkali-free glass fibre epoxy prepreg cloth is as panel Layer can effectively protect and inhales wave layer, reduces influence of the external environment to suction wave layer performance, while having good wave, avoids Outer bound pair inhales the influence of wave layer absorbing property, which can also match the suction of aramid fiber honeycomb well Wave plate electrical performance characteristics, and then ensured decaying and absorption of the stealthy plate of lightweight to incident electromagnetic wave.Wherein 120 mesh copper sieves are made The reflection of electromagnetic wave for inhaling wave layer can be will transmit through to inhaling in wave layer, to be fully absorbed after inhaling wave layer for reflecting layer. Edge bonding method is taken in stealthy compound surrounding, core material inside effective protection avoids erosion of the outside environmental elements to core material, edge sealing Used resin hardness is moderate, can meet the needs of later period installation polishing processing.
Inhaling wave layer as structure function has good absorbing property, can select the aramid fiber honeycomb of different-thickness according to demand Wave plate is inhaled, determines final thickness.On the other hand, it inhales wave layer to be covered by glass epoxy covering, the erosion of external environment can be resisted, made It is long with the service life, high reliablity；And the mode being connected by screw bolts is mounted on corresponding skeleton, and installation process is simple and efficient, For subsequent repairing and replace condition of providing convenience.
In conclusion the present invention provides and a kind of inhales wave energy and the high one kind of long service life, construction efficiency with good Camouflage composite material preparation method.
Detailed description of the invention
Fig. 1 is a kind of camouflage composite material structural representation.
In figure: 1 polyurea protection layer, 2 alkali-free glass fibre epoxy prepreg cloths, 3 alkali-free glass fibre epoxy prepreg cloths, 4 virtues Synthetic fibre honeycomb inhales wave plate, 5 alkali-free glass fibre epoxy prepreg cloths, 6 alkali-free glass fibre epoxy prepreg cloths, 7 120 mesh copper sieves, 8 Alkali-free glass fibre epoxy prepreg cloth, 9 alkali-free glass fibre epoxy prepreg cloths, 10 fixed devices, 11 connection bolts.
Specific embodiment
Following embodiment is intended to further illustrate the content of present invention, rather than limits the scope of the invention.
1), raw material blanking: requiring according to design size, cuts alkali-free glass fibre epoxy prepreg cloth (thickness in monolayer 0.2mm), aramid fiber honeycomb inhales wave plate (all corner angle of honeycomb core will polish round and smooth) and copper sieve；
2), aramid fiber honeycomb inhales wave plate drying: 40~50 DEG C of 30 ± 5min of baking in hot room, and removal aramid fiber honeycomb is inhaled in wave plate Moisture.
3), molding is laid with: 2 layers of alkali-free glass fibre epoxy prepreg cloth (thickness in monolayer 0.2mm) of laying → vacuumize (vacuum Pressure controls between -0.095 to -0.1MP) it is compacted (compacting time >=15min ,≤45min).→ it is laid with 4mm thickness Aramid fiber honeycomb inhales wave plate → repetition aforesaid operations, vacuum debulk；→ it is laid with 2 layers of alkali-free glass fibre epoxy prepreg cloth → laying 1 Layer 120 mesh copper sieves → 2 layers of laying alkali-free glass fibre epoxy prepreg cloth → repetition aforesaid operations, vacuumize compacting；It is passed through after The vacuum pressure of -0.095~-0.1MPa is crossed, while heating 80~90 DEG C, the heat-insulation pressure keeping time is 120min molding；
4) it, cuts: stealthy plate after molding is cut by design size requirement.And by the stealthy plate foreign steamer after cutting Aramid fiber honeycomb inhales wave plate and carries out drawing side processing in exterior feature, and depth is 5mm or so, about 3 honeycomb core grids.And it is wanted according to design It asks, with the glass reinforced plastic post holes for beating φ 15 (inner hole is φ 9)；
5), edge sealing and adhering glass steel column: the stealthy plate cut is subjected to edge sealing processing, is drawn at side in stealthy composite plate Filling
Edge sealing adhesive simultaneously smoothes out, while edge sealing adhesive is inserted in glass reinforced plastic post holes, and glass fibre reinforced plastic prop is put into, ambient temperature curing 10~20h is polished with 200 mesh or so sand paper afterwards, repeats above-mentioned edge sealing process, until edge sealing is tight；
6), stealthy plate is connect with fixed device using the bolt of M8*30；
7), polyureas sprays: in stealthy plate outermost surfaces, grinding process, and being surface modified, uses polyureas after qualified Protective coating polyurea materials and is matched at a slow speed using SPUA-M200 with D-31 priming paint, to improve the attached of polyurea protection coating Put forth effort, sprays the polyurea coating of the coating layer thickness of (1.0 ± 0.1) mm；
The peel strength for the stealth material forming surface that the present embodiment is prepared is not less than 4N/cm, and absorbing property is seen below Table；
Serial number Fight radar Radar reflectivity
1 S ≤-2db
2 C ≤-5db
3 X ≤-10db
4 Ku ≤-8db
5 Ka ≤-5db

Claims (5)

1. a kind of camouflage composite material, it is characterized in that from outside inward successively including: polyurea protection layer (1), two layers of alkali-free glass fibre Tie up epoxy prepreg cloth (2,3), aramid fiber honeycomb inhales wave plate (4), two layers of alkali-free glass fibre epoxy prepreg cloth (5,6), 120 mesh copper sieve It is bonded between net (7), two layers of each layer of alkali-free glass fibre epoxy prepreg cloth (8,9).
2. a kind of camouflage composite material as described in claim 1, it is characterized in that: the polyurea protection layer (1) with a thickness of 0.9~ 1.1mm, two layers alkali-free glass fibre epoxy prepreg cloth (2,3) thickness in monolayer is 0.2mm, aramid fiber honeycomb inhale wave plate (3) with a thickness of 8.5mm or 4.0mm, two layers of alkali-free glass fibre epoxy prepreg cloth (5,6) thickness in monolayer are 0.2mm, 120 mesh copper sieves (7) are thick Degree is 0.2mm, two layers of alkali-free glass fibre epoxy prepreg cloth (8,9) thickness in monolayer is to be bonded between each layer of 0.2mm.
3. a kind of moulding process of camouflage composite material as claimed in claim 2, it is characterized in that the following steps are included:
A. two layers of alkali-free glass fibre epoxy prepreg cloth (2,3), aramid fiber honeycomb are inhaled into wave plate (4), two layers of nothing in sequence Alkali containing glass fibre epoxy prepreg cloth (5,6), 120 mesh copper sieves (7), two layers of each layer of alkali-free glass fibre epoxy prepreg cloth (8,9) Between be bonded.It is bonded under the vacuum pressure that pressure is -0.095~-0.1MPa, while heating 80~90 DEG C, heat preservation is protected Press the time for 100min~200min progress；
B. it cuts: stealthy plate after molding is cut by required compact dimensions requirement, and will be on the outside of the stealthy plate after cutting The corresponding aramid fiber honeycomb of profile inhales wave plate (4) and carries out drawing side processing, and drawing side depth is 3mm~7mm or so；
C., glass fibre reinforced plastic prop mounting hole is set at a certain distance, and seals adhering glass steel column in place glass fibre reinforced plastic prop mounting hole；
D. it is drawn in aramid fiber honeycomb suction wave plate (4) and is sealed processing at side；
E. the stealthy plate of encapsulation process is pasted with stealthy device is needed, blending bolt passes through glass fibre reinforced plastic prop for described device It is fixed；
F. polyurea protection layer (1) spraying is carried out in outermost layer.
4. a kind of moulding process of camouflage composite material as claimed in claim 3, it is characterized in that: at sealing described in step C, D Reason edge sealing putty are as follows: by epoxy resin JL220A, the glass microballoon of 120 mesh, 400 mesh white carbon blacks be by weight 100: 15: 25 carry out being deployed into mixed adhesive；The mixed adhesive and epoxy hardener JL220B are carried out by 140: 25 parts by weight again It is deployed into the edge sealing putty.
5. a kind of moulding process of camouflage composite material as claimed in claim 3, it is characterized in that: being bonded in pressure described in step A Power be -0.095~-0.1MPa vacuum pressure under, while heat 80~90 DEG C, the heat-insulation pressure keeping time be 240min carry out.
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CN114909953A (en) * 2022-05-20 2022-08-16 江南大学 Core layer composite material for protecting flying stones

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CN114234721A (en) * 2021-12-29 2022-03-25 咸宁海威复合材料制品有限公司 Fireproof, heat-insulating and flame-retardant ultrahigh molecular weight polyethylene bulletproof plate and manufacturing method thereof
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