CN111730922A - Radar echo attenuation composite material and preparation method thereof - Google Patents
Radar echo attenuation composite material and preparation method thereof Download PDFInfo
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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
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- 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
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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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
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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
- B32B38/00—Ancillary operations in connection with laminating processes
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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
- B32B5/22—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
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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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B2038/0052—Other operations not otherwise provided for
- B32B2038/0076—Curing, vulcanising, cross-linking
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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
- B32B2250/00—Layers arrangement
- B32B2250/20—All layers being fibrous or filamentary
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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
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
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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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0253—Polyolefin fibres
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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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
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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
- 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
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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
- 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
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Abstract
The invention provides a radar echo attenuation composite material which consists of a wave-transmitting layer, an absorption layer and a shielding layer from outside to inside, wherein the wave-transmitting layer is a continuous wave-transmitting fiber reinforced composite material, the absorption layer is continuous wave-transmitting fiber cloth, a high polymer resin adhesive and a radar wave absorbent, and the shielding layer is a carbon fiber reinforced composite material or a metal material. The invention also provides a preparation method of the composite material, which comprises the following steps: the radar wave absorbent is dispersed in high polymer resin, coated on wave-transmitting fiber cloth, laid flat on a mold, and cured to form radar wave absorbing cloth; cutting the radar wave absorbing cloth into strips, coating glue solution on the surface after weaving to prepare an absorbing layer material; and paving the wave-transmitting fiber cloth, the absorbing layer material and the shielding material in a mould in sequence, and curing the high polymer resin to form the radar echo attenuation composite material. The material has the advantages of excellent electrical property and stable mechanical property.
Description
Technical Field
The invention belongs to the technical field of high electromagnetic loss composite materials, and particularly relates to a radar echo attenuation composite material and a preparation method thereof.
Background
The radar echo attenuation composite material is mainly applied to the technical field of military affairs, and the material is generally applied to the outer surface of weaponry. The effect of radar echo attenuation is realized through the loss of the incident radar waves of the enemy.
The prior art mainly comprises two types, one is to realize the loss absorption of incident electromagnetic waves by applying a high electromagnetic loss coating material on the outer surface of a target, and the absorption frequency band of the method is narrow, so that the application requirement of a battlefield is difficult to meet; the other is realized by applying a fiber reinforced composite material and doping a certain content of ferromagnetic powder in the material.
Taiwan patent I258293, a composite wave-absorbing structure in a thin shell shape and a method for preparing the same, discloses a composite material and a method for forming the same, wherein a formed continuous fiber prepreg is used, an absorbent is added into the prepreg for a plurality of times, and finally the thin shell-shaped composite material is obtained by heating and pressurizing for forming. The disadvantage of this patented technology is that resin flow during the curing of the composite material will cause redistribution of the absorber, resulting in uncontrolled electrical properties of the structure.
Chinese patent ZL201510634026.6, a machine preparation method of broadband wave-absorbing force-bearing composite material, discloses a composite material containing continuous wave-transmitting fibers and a preparation method thereof. The absorbent in the material is firstly solidified on the fiber cloth in a spraying mode, and then the required composite material product is obtained through secondary solidification and forming. The method has the disadvantages that the wave-absorbing cloth obtained by primary curing has high toughness, the glue permeability and the air permeability are poor, the defects of fiber cloth tilting, local glue accumulation and local bubble accumulation easily occur on the wave-absorbing cloth which is too hard and airtight after fiber layering during secondary curing, the electrical property of the product is easy to fluctuate, and important defects are brought to the structural mechanical property, so that the method is not beneficial to batch production.
In summary, the prior art mainly has two defects that, during the curing and molding process of the composite material, the solid absorbent particles are redistributed inside the material along with the resin flow, which results in unstable electrical properties. Secondly, in the existing curing process taking the wave-absorbing cloth as the intermediate carrier, the wave-absorbing cloth has higher hardness due to the fact that the wave-absorbing cloth contains cured resin material components, the fiber cloth is difficult to bend, the manufacturability of fiber cloth laying is seriously influenced, and the cured resin layer is impermeable, so that the wave-absorbing cloth is easy to have the defects of interlayer adhesive accumulation and air hole clamping, and the electrical property and the mechanical property are unstable.
Disclosure of Invention
The invention aims to solve the problems and provides a radar echo attenuation composite material and a preparation method thereof, and the radar echo attenuation composite material has the advantages of excellent electrical property, stable mechanical property, simple preparation process, easiness in batch production and controllable performance of the produced composite material.
In order to achieve the purpose, the invention adopts the following technical scheme:
the radar echo attenuation composite material is characterized by comprising a wave-transparent layer, an absorption layer and a shielding layer from outside to inside;
the wave-transmitting layer is a continuous wave-transmitting fiber reinforced composite material;
the continuous wave-transmitting fiber reinforced composite material is wave-transmitting fiber cloth coated with high polymer resin and cured;
the thickness of the wave-transmitting layer is 0.1mm-10 mm;
the absorption layer consists of continuous wave-transmitting fiber cloth, a high polymer resin adhesive and a radar wave absorbent;
the continuous wave-transmitting fiber cloth of the absorption layer is in a strip shape, and the width of the continuous wave-transmitting fiber cloth is 3-50 mm;
the wave-transmitting fiber is one or more of quartz fiber, glass fiber, aramid fiber, PBO fiber or polyethylene fiber;
the radar wave absorbent is dispersed in the high polymer resin adhesive, and the mixture of the radar wave absorbent and the high polymer resin adhesive is coated on the surface of the strip-shaped continuous wave-transmitting fiber cloth;
after the continuous wave-transmitting fiber cloth strip adopts a staggered weaving method, a high molecular resin adhesive is filled in the weaving gap of the continuous wave-transmitting fiber cloth strip for curing;
preferably, the continuous wave-transmitting fiber cloth strip is cured after being sewn through the wave-transmitting fiber yarns;
the thickness of the absorption layer is 0.3mm-30 mm.
The shielding layer is one of a carbon fiber reinforced composite material and a metal material.
Meanwhile, the invention provides a preparation method of the radar echo attenuation composite material, which comprises the following steps:
the radar wave absorbent is dispersed in high polymer resin, coated on wave-transmitting fiber cloth, laid flat on a mold, and cured to form radar wave absorbing cloth;
cutting the radar wave absorbing cloth into strips, coating glue solution on the surface after weaving to prepare an absorbing layer material;
cutting the radar wave absorption cloth into narrow strips with the width of 3mm-50 mm;
the narrow strips of the radar wave absorption cloth are woven in a staggered manner;
the radar wave absorbing cloth strip is formed by sewing wave-transmitting fiber filaments before solidification;
sequentially paving wave-transmitting fiber cloth, an absorbing layer material and a shielding material in a mould, and curing the high polymer resin to form a radar echo attenuation composite material;
the shielding material is a carbon fiber reinforced composite material or a metal material.
By adopting the technical scheme, the radar wave absorbing cloth is cut into strips, so that the radar wave absorbing cloth is easy to bend in secondary laying construction, the interlayer flow of resin and bubbles is not influenced, and the defects of glue accumulation and air holes inclusion are avoided.
The invention adopts the technical scheme of sewing and curing the woven radar wave absorbing cloth strips, avoids the phenomena of in-layer slippage, local accumulation and the like of the wave absorbing cloth strips in the secondary curing process, meets the mechanical property and the electrical property of the composite material structure, and finally obviously improves the comprehensive performance of the obtained radar echo attenuation composite material,
the preparation method of the radar echo attenuation composite material improves the stability of the process flow of the preparation of the composite material, and ensures that each index of the prepared composite material is controllable.
Detailed Description
The present invention will be described in detail with reference to the following examples, and it should be understood that the described examples are only a part of the examples of the present invention, and not all of the examples. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The wave-transmitting layer of the radar echo attenuation composite material is a quartz fiber composite material with the thickness of 0.1mm, the thickness of the absorbing layer is 0.3mm, and the shielding layer is a carbon fiber composite material with the thickness of 0.2 mm.
The preparation method of the radar echo attenuation composite material comprises the following steps:
dispersing a commercially available MZ-1 radar wave absorbent in high polymer resin, coating the high polymer resin on wave-transmitting fiber cloth, flattening the wave-transmitting fiber cloth and placing the wave-transmitting fiber cloth on a mold, and curing the high polymer resin to form radar wave absorbent cloth;
the wave-transmitting fiber cloth is quartz fiber cloth with the thickness of 0.1 mm;
the thickness of the radar wave absorption cloth is 0.3 mm;
cutting the radar wave absorbing cloth into strips, coating glue solution on the surface after weaving to prepare an absorbing layer material;
cutting the radar wave absorption cloth into narrow strips with the width of 50 mm;
the narrow strips of the radar wave absorbing cloth are woven in a staggered mode and then sewn through glass fiber yarns;
paving 0.1mm quartz fiber cloth, an absorption layer material and a shielding material in a mold in sequence, and curing the high polymer resin to form a radar echo attenuation composite material;
the shielding material is carbon fiber cloth with the thickness of 0.2 mm.
Example 2
The wave-transparent layer of the radar echo attenuation composite material is made of aramid fiber composite material with the thickness of 10mm, the thickness of the absorption layer is 30mm, and the shielding layer is made of metal material.
The preparation method of the radar echo attenuation composite material comprises the following steps:
the radar wave absorbent is dispersed in high polymer resin, coated on wave-transmitting fiber cloth, laid flat on a mold, and cured to form radar wave absorbing cloth;
the wave-transmitting fiber cloth is glass fiber cloth with the thickness of 0.2 mm;
the thickness of the radar wave absorption cloth is 0.8 mm;
cutting the radar wave absorbing cloth into strips, coating glue solution on the surface after weaving to prepare an absorbing layer material;
cutting the radar wave absorption cloth into narrow strips with the width of 10 mm;
the narrow strips of the radar wave absorption cloth are woven in a staggered manner;
and paving the wave-transmitting fiber cloth, the absorbing layer material and the shielding material in a mould in sequence, and curing the high polymer resin to form the radar echo attenuation composite material.
The continuous wave-transparent fiber reinforced composite material is formed by solidifying 50 layers of aramid fiber cloth with the thickness of 0.2 mm;
the braided and bonded radar wave absorbing cloth comprises 18 layers;
the shielding material is a metal plate with the thickness of 5 mm.
Example 3
The wave-transmitting layer of the radar echo attenuation composite material is a glass fiber composite material with the thickness of 2mm, the thickness of the absorbing layer is 2mm, and the shielding layer is a carbon fiber composite material with the thickness of 2 mm.
The preparation method of the radar echo attenuation composite material comprises the following steps:
the radar wave absorbent is dispersed in high polymer resin, coated on wave-transmitting fiber cloth, laid flat on a mold, and cured to form radar wave absorbing cloth;
the wave-transmitting fiber cloth is glass fiber cloth with the thickness of 0.2 mm;
the thickness of the radar wave absorption cloth is 0.5 mm;
cutting the radar wave absorbing cloth into strips, coating glue solution on the surface after weaving to prepare an absorbing layer material;
cutting the radar wave absorption cloth into narrow strips with the width of 3-5 mm;
the narrow strips of the radar wave absorption cloth are woven in a staggered manner;
and paving the wave-transmitting fiber cloth, the absorbing layer material and the shielding material in a mould in sequence, and curing the high polymer resin to form the radar echo attenuation composite material.
The wave-transmitting fiber cloth is obtained by solidifying 10 layers of quartz fiber cloth with the thickness of 0.2 mm;
the braided and bonded radar wave absorbing cloth has 4 layers;
the shielding material is 10 layers of carbon fiber cloth with the thickness of 0.2 mm.
Example 4
The wave-transmitting layer of the radar echo attenuation composite material is a polyethylene composite material with the thickness of 2mm, the thickness of the absorbing layer is 2mm, and the shielding layer is a carbon fiber composite material with the thickness of 2 mm.
The preparation method of the radar echo attenuation composite material comprises the following steps:
the radar wave absorbent is dispersed in high polymer resin, coated on wave-transmitting fiber cloth, laid flat on a mold, and cured to form radar wave absorbing cloth;
the wave-transmitting fiber cloth is quartz fiber cloth with the thickness of 0.2 mm;
the thickness of the radar wave absorption cloth is 0.5 mm;
cutting the radar wave absorbing cloth into strips, coating glue solution on the surface after weaving to prepare an absorbing layer material;
cutting the radar wave absorption cloth into narrow strips with the width of 3-5 mm;
the narrow strips of the radar wave absorption cloth are woven in a staggered manner;
sequentially paving wave-transmitting fiber cloth, an absorbing layer material and a shielding material in a mould, and curing the high polymer resin to form a radar echo attenuation composite material;
the continuous wave-transmitting fiber reinforced composite material is made of 10 layers of polyethylene fiber cloth with the thickness of 0.2 mm;
the braided and bonded radar wave absorbing cloth has 4 layers;
the shielding material is 10 layers of carbon fiber cloth with the thickness of 0.2 mm.
Example 5
The wave-transmitting layer of the radar echo attenuation composite material is a PBO fiber reinforced composite material with the thickness of 2mm, the thickness of the absorbing layer is 2mm, and the shielding layer is a carbon fiber composite material with the thickness of 2 mm.
The preparation method of the radar echo attenuation composite material comprises the following steps:
the radar wave absorbent is dispersed in high polymer resin, coated on wave-transmitting fiber cloth, laid flat on a mold, and cured to form radar wave absorbing cloth;
the wave-transmitting fiber cloth is quartz fiber cloth with the thickness of 0.2 mm;
the thickness of the radar wave absorption cloth is 0.5 mm;
cutting the radar wave absorbing cloth into strips, coating glue solution on the surface after weaving to prepare an absorbing layer material;
cutting the radar wave absorption cloth into narrow strips with the width of 3-5 mm;
the narrow strips of the radar wave absorption cloth are woven in a staggered manner;
and paving the wave-transmitting fiber cloth, the absorbing layer material and the shielding material in a mould in sequence, and curing the high polymer resin to form the radar echo attenuation composite material.
The continuous wave-transparent fiber reinforced composite material is a PBO fiber reinforced composite material with the thickness of 10 layers being 0.2 mm;
the braided and bonded radar wave absorbing cloth has 4 layers;
the shielding material is 10 layers of carbon fiber cloth with the thickness of 0.2 mm.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A radar echo attenuating composite material characterized by: from outside to inside by wave-transparent layer, absorbed layer, shielding layer three-layer composition, wherein:
the wave-transmitting layer is a continuous wave-transmitting fiber reinforced composite material;
the absorption layer consists of continuous wave-transmitting fiber cloth, a high polymer resin adhesive and a radar wave absorbent;
the shielding layer is made of carbon fiber reinforced composite materials or metal materials.
2. A radar echo attenuating composite material according to claim 1, wherein: the continuous wave-transmitting fiber cloth is one or more of quartz fiber, glass fiber, aramid fiber, PBO fiber and polyethylene fiber.
3. A radar echo attenuating composite material according to claim 1, wherein: the continuous wave-transmitting fiber cloth of the absorption layer is in a strip shape, and the width of the continuous wave-transmitting fiber cloth is 3mm-50 mm.
4. A radar echo attenuating composite material according to claims 1-3, wherein: the radar wave absorbent is dispersed in the high polymer resin adhesive, and the mixture of the radar wave absorbent and the high polymer resin adhesive is coated on the surface of the strip-shaped continuous wave-transmitting fiber cloth strip.
5. A radar echo attenuating composite material according to claim 3, wherein: the continuous wave-transmitting fiber cloth strip adopts a staggered weaving method, and polymer resin adhesive is filled in weaving gaps of the continuous wave-transmitting fiber cloth strip or the continuous wave-transmitting fiber cloth strip is sewn through wave-transmitting fiber yarns.
6. A radar echo attenuating composite material according to claim 1, wherein: the thickness of the wave-transmitting layer is 0.1mm-10 mm.
7. A radar echo attenuating composite material according to claim 1, wherein: the thickness of the absorption layer is 0.3mm-30 mm.
8. A preparation method of a radar echo attenuation composite material is characterized by comprising the following steps:
the radar wave absorbent is dispersed in high polymer resin, coated on wave-transmitting fiber cloth, laid flat on a mold, and cured to form radar wave absorbing cloth;
cutting the radar wave absorbing cloth into strips, coating glue solution on the surface after weaving to prepare an absorbing layer material;
and paving the wave-transmitting fiber cloth, the absorbing layer material and the shielding material in a mould in sequence, and curing the high polymer resin to form the radar echo attenuation composite material.
9. A method for preparing a radar echo attenuating composite material according to claim 8, wherein the radar wave absorbing cloth strips are interlaced and then stitched using wave-transmitting fiber yarns.
10. The method of claim 8, wherein the wave-transmitting layer material and the absorbing layer material are formed by using a plurality of fiber cloths.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112644103A (en) * | 2020-12-14 | 2021-04-13 | 北京机电工程研究所 | Broadband wave-absorbing force-bearing composite material and preparation method thereof |
| RU2797954C1 (en) * | 2022-07-18 | 2023-06-13 | Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации | Method for manufacturing aerodynamic controls for unmanned aerial vehicles |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700153A (en) * | 2012-06-12 | 2012-10-03 | 江苏恒神纤维材料有限公司 | Continuous pultrusion manufacturing method and production device for fibrous composite drive shaft |
| CN103509238A (en) * | 2012-06-18 | 2014-01-15 | 上海杰事杰新材料(集团)股份有限公司 | High-strength thermoplastic composite material and preparation method thereof |
| CN104416912A (en) * | 2013-08-26 | 2015-03-18 | 辽宁辽杰科技有限公司 | Continuous fiber-reinforced thermoplastic resin product and preparation method thereof |
| CN204788056U (en) * | 2015-05-10 | 2015-11-18 | 奚济孝 | Compound guard plate of electromagnetic shield |
| CN105196638A (en) * | 2015-09-24 | 2015-12-30 | 北京机电工程研究所 | Broadband wave-absorbing force bearing composite material and preparing method thereof |
| CN106113524A (en) * | 2016-06-29 | 2016-11-16 | 华东理工大学 | A kind of prepreg tape, the loop bonding of mixed fiber yarn fabric and briquetting process thereof |
| CN106183315A (en) * | 2016-07-19 | 2016-12-07 | 四川航天拓鑫玄武岩实业有限公司 | A kind of infrared radar compatible type stealth material and preparation method thereof |
| CN106863838A (en) * | 2017-03-13 | 2017-06-20 | 华东理工大学 | A kind of continuous fiber braid strengthens the preparation method of thermoplastic composite |
-
2019
- 2019-03-25 CN CN201910227614.6A patent/CN111730922A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102700153A (en) * | 2012-06-12 | 2012-10-03 | 江苏恒神纤维材料有限公司 | Continuous pultrusion manufacturing method and production device for fibrous composite drive shaft |
| CN103509238A (en) * | 2012-06-18 | 2014-01-15 | 上海杰事杰新材料(集团)股份有限公司 | High-strength thermoplastic composite material and preparation method thereof |
| CN104416912A (en) * | 2013-08-26 | 2015-03-18 | 辽宁辽杰科技有限公司 | Continuous fiber-reinforced thermoplastic resin product and preparation method thereof |
| CN204788056U (en) * | 2015-05-10 | 2015-11-18 | 奚济孝 | Compound guard plate of electromagnetic shield |
| CN105196638A (en) * | 2015-09-24 | 2015-12-30 | 北京机电工程研究所 | Broadband wave-absorbing force bearing composite material and preparing method thereof |
| CN106113524A (en) * | 2016-06-29 | 2016-11-16 | 华东理工大学 | A kind of prepreg tape, the loop bonding of mixed fiber yarn fabric and briquetting process thereof |
| CN106183315A (en) * | 2016-07-19 | 2016-12-07 | 四川航天拓鑫玄武岩实业有限公司 | A kind of infrared radar compatible type stealth material and preparation method thereof |
| CN106863838A (en) * | 2017-03-13 | 2017-06-20 | 华东理工大学 | A kind of continuous fiber braid strengthens the preparation method of thermoplastic composite |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112644103A (en) * | 2020-12-14 | 2021-04-13 | 北京机电工程研究所 | Broadband wave-absorbing force-bearing composite material and preparation method thereof |
| RU2797954C1 (en) * | 2022-07-18 | 2023-06-13 | Российская Федерация, от имени которой выступает Министерство обороны Российской Федерации | Method for manufacturing aerodynamic controls for unmanned aerial vehicles |
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Application publication date: 20201002 |