CN102501492B - Preparation technology of centimetre wave-millimeter wave compatible absorbing material - Google Patents
Preparation technology of centimetre wave-millimeter wave compatible absorbing material Download PDFInfo
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- CN102501492B CN102501492B CN201110302144.9A CN201110302144A CN102501492B CN 102501492 B CN102501492 B CN 102501492B CN 201110302144 A CN201110302144 A CN 201110302144A CN 102501492 B CN102501492 B CN 102501492B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000011358 absorbing material Substances 0.000 title claims abstract description 16
- 238000005516 engineering process Methods 0.000 title claims abstract description 8
- 239000011248 coating agent Substances 0.000 claims abstract description 40
- 238000000576 coating method Methods 0.000 claims abstract description 40
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000000853 adhesive Substances 0.000 claims abstract description 18
- 230000001070 adhesive effect Effects 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000007822 coupling agent Substances 0.000 claims abstract description 15
- 239000003085 diluting agent Substances 0.000 claims abstract description 15
- 239000006096 absorbing agent Substances 0.000 claims abstract description 14
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 8
- 239000004917 carbon fiber Substances 0.000 claims abstract description 8
- 239000000835 fiber Substances 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 6
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 6
- 239000004814 polyurethane Substances 0.000 claims abstract description 6
- 229920002635 polyurethane Polymers 0.000 claims abstract description 6
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 24
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 22
- 239000002131 composite material Substances 0.000 claims description 21
- 230000002745 absorbent Effects 0.000 claims description 16
- 239000002250 absorbent Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 239000002994 raw material Substances 0.000 claims description 14
- 230000002269 spontaneous effect Effects 0.000 claims description 12
- 239000006229 carbon black Substances 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 5
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000000758 substrate Substances 0.000 abstract description 3
- 230000001788 irregular Effects 0.000 abstract description 2
- 239000003822 epoxy resin Substances 0.000 abstract 3
- 229920000647 polyepoxide Polymers 0.000 abstract 3
- 239000003973 paint Substances 0.000 abstract 2
- 239000013078 crystal Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 24
- 238000001035 drying Methods 0.000 description 20
- 238000010790 dilution Methods 0.000 description 10
- 239000012895 dilution Substances 0.000 description 10
- 238000005507 spraying Methods 0.000 description 10
- 238000002156 mixing Methods 0.000 description 6
- 230000001680 brushing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The invention relates to a preparation technology of a centimetre wave-millimeter wave compatible absorbing material. The material is of five-layer structure, and a substrate is an irregular surface made of any material; the topmost layer is a first layer, and mainly consists of a W-shaped hexagonal ferrite absorbing agent and an acrylic resin adhesive; a second layer is composed of a carbonyl iron powder absorbing agent and an epoxy resin adhesive, and a third layer is composed of a Fe85Si1Al6Cr8 nanometer crystal thin absorbing agent and an epoxy resin adhesive; a fourth layer is composed of a polycrystal iron fibre absorbing agent and an epoxy resin adhesive; and a fifth layer is composed of a chopped carbon fiber, a sooty mixed absorbing agent and a polyurethane adhesive. A preparation process comprises the following steps: firstly, covering and preparing a bottom fifth-layer medium coating on the substrate; and then successively covering and preparing a fourth-layer medium coating, a third-layer medium coating, a second-layer medium coating and a first-layer medium coating, wherein the coating preparation of each medium coating is as follows: uniformly stirring a coupling agent, a diluting agent and the absorbing agent of each layer, standing, then adding the adhesive of each layer, uniformly stirring to obtain a paint, coating the paint, and curing, thus obtaining the centimetre wave-millimeter wave compatible absorbing material.
Description
Technical field
The present invention relates to a kind of preparation technology centimeter wave-millimeter wave to the composite of compatible suction ripple effect.
Background technology
Absorbing material can convert electromagnetic wave energy the energy of other form to and be depleted and attenuate.Fast development due to electronics telecom technology, make the more high band expansion of electromagnetic wave frequency range forward, the electromagnetic interference that the electromagenetic wave radiation of ultratvide frequency band causes and electromagnetic pollution problem cause day by day to be paid close attention to and payes attention to, and urgently seeks the compatible civilian absorbing material of a kind of multiband.
At present, existing centimeter wave (2～18GHz) absorbing material has good absorbing property in superhigh frequency band, but its millimeter wave absorbing property is very low, and millimeter wave (26.6～40GHz) absorbing material has good absorbing property in millimere-wave band, but very low again at its centimeter wave absorbing property; Exist superhigh frequency band and the millimeter wave suction wave band performance of absorbing material to be difficult to compatible problem.The task of top priority is the absorbing material that will develop centimeter wave and millimeter wave compatibility, for meeting the active demand of people to absorbing material.
Summary of the invention
In order to solve the performance issue of the compatibility suction ripple that in current existing field, centimeter wave-millimeter wave can not be good, the object of the present invention is to provide a kind of preparation technology of the composite wave-suction material that compatible loss absorbs to centimeter wave-millimeter wave band electromagnetic wave.
The technical solution adopted in the present invention is, described material is composited by five layers of dielectric coated, and top layer is ground floor, be next followed successively by second and third, four layers, bottom is layer 5; The raw material of described ground floor dielectric coated comprises: BaCo
0.9zn
1.1fe
16o
2750～60 parts of W type hexgonal screws, 40～50 parts of acrylic resin adhesives; The raw material of described second layer dielectric coated comprises 60～70 parts of spherical carbonyl iron dusts, 30～40 parts of epoxyns; The raw material of described the 3rd layer of dielectric coated comprises: Fe
85si
1al
6cr
865～75 parts, nanocrystalline sheet absorbent, 25～35 parts of epoxyns; The raw material of described the 4th layer of dielectric coated comprises 10～20 parts, polycrystalline iron fiber absorbent, 80～90 parts of epoxyns; The raw material of described layer 5 dielectric coated comprises that chopped carbon fiber and carbon black are that the ratio of 1: 8～1: 5 is mixed into composite absorber in mass ratio, 45～55 parts of composite absorbers, 45～55 parts of polyurethane adhesives, umber all by weight, lower with; Preparation process is, first on matrix, apply and prepare bottom layer 5 dielectric coated, then apply the 4th layer, the 3rd layer of preparation successively, the second layer, ground floor dielectric coated; The coating preparation of each dielectric coated is: the absorbent by coupling agent, diluent and each layer stirs, standing after, curing forming after adding the adhesive of each layer to be stirred into coating to apply.
The preferred spherical carbonyl iron particle degree of the present invention is 3～5 microns.
3～6 microns of the diameters of the preferred polycrystalline iron fiber absorbent of the present invention, draw ratio is 15: 1～20: 1.
2～5 microns of the preferred chopped carbon fiber diameters of the present invention, draw ratio is 6: 1～10: 1; 1～3 micron of the granularity of carbon black.
Coupling agent of the present invention is Silane coupling agent KH550 particularly preferably.
The present invention controls the thickness of coating by controlling the number of times of every layer of coating.In the present invention, ground floor exists respectively to the thickness of layer 5: 0.1～0.15mm, and 0.2～0.25mm, 0.3～0.35mm, 0.3～0.35mm, 0.5～0.6mm is advisable.
Described diluent preferably adopts by diformazan is stupid and mixes with n-butanol.
Described curing be to be incubated after 0.8-1.2 hour at 25-35 ℃, then temperature is risen to 55-65 ℃ of curing 0.8-1.2 hour, or directly at room temperature places spontaneous curing without heating.
The coated substrates of composite of the present invention can be the irregular surfaces of any materials.Bottom is that layer 5 applies and is connected with matrix.
The composite making by method of the present invention is compared and is had following outstanding advantages with existing absorbing material:
Composite multi-layer absorbing material of the present invention has good impedance matching effect, and can reduce to greatest extent electromagnetic reflection.The composite wave-suction material making is be better than-8dB of 8～12GHz superhigh frequency band reflectivity (detect performance and see Fig. 2), be better than-10dB of 26.5～40GHz millimere-wave band reflectivity (detect performance and see Fig. 3), reached the compatible object absorbing of centimeter wave-millimeter wave band electromagnetic wave.
The present invention further advantage is embodied in, and the thickness of composite wave-suction material of the present invention from ground floor to layer 5 stratiform absorbing material is respectively: 0.1～0.15mm, 0.2～0.25mm, 0.3～0.35mm, 0.3～0.35mm, 0.5～0.6mm.Absorbing material integral thickness is less than 2mm, and surface density is low, quality is light, can be widely used in electromagnetic compatibility and anti-electromagnetic interference field.
Composite preparation of the present invention comprises the following steps:
1. by coupling agent, the diluent dilution mixing with dimethylbenzene and n-butanol, add 2～5 microns of diameters, draw ratio is that the carbon black of 1～3 micron of the chopped carbon fiber of 6: 1～10: 1 and granularity is that the ratio of 1: 8～1: 5 is mixed into composite absorber 45～55g to wherein in mass ratio, by electric blender, mixture is stirred to half an hour; After standing half an hour, then add polyurethane adhesive 45～55g in mixture, stir into uniform coating; Adopt aerial spraying or brushing mode that this coating is coated on matrix, THICKNESS CONTROL is at 0.5～0.6mm, then put into after 25-35 ℃ of constant temperature drying room 0.8-1.2 hour, again drying room temperature is risen to 55-65 ℃ of curing 0.8-1.2 hour, or at room temperature place spontaneous curing, thereby make layer 5 dielectric coated.
2. by coupling agent, the diluent dilution mixing with dimethylbenzene and n-butanol, adds 3～6 microns of diameters, draw ratio be the polycrystalline iron fiber absorbent 10～20g of 15: 1～20: 1 to wherein, by electric blender, mixture is stirred to half an hour; After standing half an hour, then add epoxyn 80～90g in mixture, stir into uniform coating; Adopt aerial spraying or brush technique this coating is coated on layer 5 dielectric coated material, THICKNESS CONTROL is at 0.3～0.35mm, then put into after 25-35 ℃ of constant temperature drying room 0.8-1.2 hour, again drying room temperature is risen to 55-65 ℃ of curing 0.8-1.2 hour, or at room temperature place spontaneous curing, thereby make the 4th layer of dielectric coated.
3. by coupling agent, the diluent dilution mixing with dimethylbenzene and n-butanol, adds Fe
85si
1al
6cr
8nanocrystalline sheet absorbent 65～75g, to wherein, stirs half an hour by electric blender by mixture; After standing half an hour, then add epoxyn 25～35g in mixture, stir into uniform coating; Adopt aerial spraying or brush technique this coating is coated on the 4th layer of dielectric coated material, THICKNESS CONTROL is at 0.3～0.35mm, then put into after 25-35 ℃ of constant temperature drying room 0.8-1.2 hour, again drying room temperature is risen to 55-65 ℃ of curing 0.8-1.2 hour, or at room temperature place spontaneous curing, thereby make the 3rd layer of dielectric coated.
4. by coupling agent, the diluent dilution mixing with dimethylbenzene and n-butanol, add granularity be the spherical carbonyl iron dust 60～70g of 3～5 microns to wherein, by electric blender, mixture is stirred to half an hour; After standing half an hour, then add epoxyn 30～40g in mixture, stir into uniform coating; Adopt aerial spraying or brush technique this coating is coated on the 3rd layer of wave-absorbing coating material, THICKNESS CONTROL is at 0.2～0.25mm, then put into after 25-35 ℃ of constant temperature drying room 0.8-1.2 hour, again drying room temperature is risen to 55-65 ℃ of curing 0.8-1.2 hour, or at room temperature place spontaneous curing, thereby make second layer dielectric coated.
5. by coupling agent, the diluent dilution mixing with dimethylbenzene and n-butanol, adds BaCo
0.9zn
1.1fe
16o
27w type hexgonal screw 50～60g, to wherein, stirs half an hour by electric blender by mixture; After standing half an hour, then add acrylic resin adhesive 40～50g in mixture, stir into uniform coating; Adopt aerial spraying or brush technique this coating is coated on second layer wave-absorbing coating material, THICKNESS CONTROL is at 0.1～0.15mm, then put into after 25-35 ℃ of constant temperature drying room 0.8-1.2 hour, again drying room temperature is risen to 55-65 ℃ of curing 0.8-1.2 hour, or at room temperature place spontaneous curing, thereby make ground floor dielectric coated.
Stable preparation process of the present invention, easy and simple to handle, with short production cycle and save the energy, and coating absorption affinity is by force and do not peel off, and can realize heavy industrialization and produce continuously.
Accompanying drawing explanation
Fig. 1 is the compatible composite structure schematic diagram of inhaling ripple of centimeter wave of the present invention-millimeter wave.
Fig. 2 is composite 8～12GHz superhigh frequency band absorbing property of the present invention.
Fig. 3 is composite 26.5～40GHz millimere-wave band absorbing property of the present invention.
Fig. 4 is composite material preparation process flow chart of the present invention.
The specific embodiment
Following examples are intended to illustrate the present invention rather than limitation of the invention further.
Embodiment 1
1, get 1g coupling agent, with 50g, be the diluent dilution that the dimethylbenzene of 7: 3 and n-butanol mix by volume, add 2～5 microns of diameters, draw ratio is that the carbon black of 1～3 micron of the chopped carbon fiber of 6: 1～10: 1 and granularity is that the ratio of 1: 8～1: 5 is mixed into composite absorber 45g to wherein in mass ratio, by electric blender, mixture is stirred to half an hour; After standing half an hour, then add polyurethane adhesive 55g in mixture, stir into uniform coating; Adopt aerial spraying or brushing mode that this coating is coated on matrix, THICKNESS CONTROL, at 0.5～0.6mm, is then put into 30 ℃ of constant temperature drying rooms after 1 hour, then drying room temperature is risen to 60 ℃ solidifies 1 hour, or at room temperature place spontaneous curing in 12 hours, thereby make layer 5 dielectric coated.
2, get 1g coupling agent, with 50g, be the diluent dilution that the dimethylbenzene of 7: 3 and n-butanol mix by volume, add 3～6 microns of diameters, draw ratio be the polycrystalline iron fiber absorbent 10g of 15: 1～20: 1 to wherein, by electric blender, mixture is stirred to half an hour; After standing half an hour, then add epoxyn 90g in mixture, stir into uniform coating; Adopt aerial spraying or brush technique this coating is coated on layer 5 dielectric coated material, THICKNESS CONTROL is at 0.3～0.35mm, then put into 30 ℃ of constant temperature drying rooms after 1 hour, drying room temperature being risen to 60 ℃ solidifies 1 hour again, or at room temperature place spontaneous curing in 12 hours, thereby make the 4th layer of dielectric coated.
3, get 1g coupling agent, the diluent mixing with dimethylbenzene and n-butanol dilution, adds Fe
85si
1al
6cr
8nanocrystalline sheet absorbent 65g, to wherein, stirs half an hour by electric blender by mixture; After standing half an hour, then add epoxyn 35g in mixture, stir into uniform coating; Adopt aerial spraying or brush technique this coating is coated on the 4th layer of dielectric coated material, THICKNESS CONTROL is at 0.3～0.35mm, then put into after 25-35 ℃ of constant temperature drying room 0.8-1.2 hour, drying room temperature being risen to 60 ℃ solidifies 1 hour again, or at room temperature place spontaneous curing in 12 hours, thereby make the 3rd layer of dielectric coated.
4, getting 1g coupling agent, is the diluent dilution that the dimethylbenzene of 7: 3 and n-butanol mix with 50g by volume, add granularity be the spherical carbonyl iron dust 60g of 3～5 microns to wherein, by electric blender, mixture is stirred to half an hour; After standing half an hour, then add epoxyn 40g in mixture, stir into uniform coating; Adopt aerial spraying or brush technique this coating is coated on the 3rd layer of wave-absorbing coating material, THICKNESS CONTROL is at 0.2～0.25mm, then put into 30 ℃ of constant temperature drying rooms after 1 hour, drying room temperature being risen to 60 ℃ solidifies 1 hour again, or at room temperature place spontaneous curing in 12 hours, thereby make second layer dielectric coated.
5, getting 1g coupling agent, is the diluent dilution that the dimethylbenzene of 7: 3 and n-butanol mix with 50g by volume, adds BaCo
0.9zn
1.1fe
16o
27w type hexgonal screw 50g, to wherein, stirs half an hour by electric blender by mixture; After standing half an hour, then add acrylic resin adhesive 50g in mixture, stir into uniform coating; Adopt aerial spraying or brush technique this coating is coated on second layer wave-absorbing coating material, THICKNESS CONTROL is at 0.1～0.15mm, then put into 30 ℃ of constant temperature drying rooms after 1 hour, drying room temperature being risen to 60 ℃ solidifies 1 hour again, or at room temperature place spontaneous curing in 12 hours, thereby make ground floor dielectric coated.
Embodiment 2
Step is with embodiment 1, wherein BaCo in ground floor
0.9zn
1.1fe
16o
27w type hexgonal screw 60g, acrylic resin adhesive 40g; The raw material of second layer dielectric coated comprises: adding granularity is the spherical carbonyl iron dust 70g of 3～5 microns, epoxyn 30g; The raw material of described the 3rd layer of dielectric coated comprises: Fe
85si
1al
6cr
8nanocrystalline sheet absorbent 75g, epoxyn 25g; The raw material of described the 4th layer of dielectric coated comprises that adding 3～6 microns of diameters, draw ratio is the polycrystalline iron fiber absorbent 20g of 15: 1～20: 1, epoxyn 80g; The raw material of described layer 5 dielectric coated comprises and adds 2～5 microns of diameters, draw ratio is that the carbon black of 1～3 micron of the chopped carbon fiber of 6: 1～10: 1 and granularity is that the ratio of 1: 8～1: 5 is mixed into composite absorber in mass ratio, composite absorber 55g, polyurethane adhesive 45g.
Claims (8)
1. the preparation technology to the compatible absorbing material of centimeter wave and millimeter wave, is characterized in that, described material is composited by five layers of dielectric coated, and top layer is ground floor, be next followed successively by second and third, four layers, bottom is layer 5; The raw material of described ground floor dielectric coated comprises: BaCo
0.9zn
1.1fe
16o
2750～60 parts of W type Hexagoal Ferrites Absorbent Materialss, 40～50 parts of acrylic resin adhesives; The raw material of described second layer dielectric coated comprises: 60～70 parts, spherical carbonyl iron dust absorbent, 30～40 parts of epoxyns; The raw material of described the 3rd layer of dielectric coated comprises: Fe
85si
1al
6cr
865～75 parts, nanocrystalline sheet absorbent, 25～35 parts of epoxyns; The raw material of described the 4th layer of dielectric coated comprises 10～20 parts, polycrystalline iron fiber absorbent, 80～90 parts of epoxyns; The raw material of described layer 5 dielectric coated comprises that chopped carbon fiber and carbon black are in mass ratio for the ratio of 1:8～1:5 is mixed into composite absorber, 45～55 parts of composite absorbers, and 45～55 parts of polyurethane adhesives, above umber is all by weight; Preparation process is, first on matrix, apply and prepare bottom layer 5 dielectric coated, then apply the 4th layer, the 3rd layer of preparation successively, the second layer, ground floor dielectric coated; The coating preparation of each dielectric coated is: the absorbent by coupling agent, diluent and each layer stirs, standing after, curing forming after adding the adhesive of each layer to be stirred into coating to apply.
2. technique according to claim 1, is characterized in that, described spherical carbonyl iron dust granularity is 3～5 microns.
3. technique according to claim 1, is characterized in that, 3～6 microns of the diameters of described polycrystalline iron fiber absorbent, and draw ratio is 15:1～20:1.
4. technique according to claim 1, is characterized in that, 2～5 microns of described chopped carbon fiber diameters, and draw ratio is 6:1～10:1; 1～3 micron of the granularity of carbon black.
5. according to the technique described in claim 1-4 any one, it is characterized in that, described coupling agent comprises Silane coupling agent KH550.
6. according to the technique described in claim 1-4 any one, it is characterized in that, described diluent is to be mixed by dimethylbenzene and n-butanol.
7. according to the technique described in claim 1-4 any one, it is characterized in that, described curing be to be incubated after 0.8-1.2 hour at 25-35 ℃, then temperature is risen to 55-65 ℃ of curing 0.8-1.2 hour, or directly at room temperature places spontaneous curing without heating.
8. according to the composite described in claim 1-4 any one, it is characterized in that, described ground floor dielectric coated exists respectively to the coating thickness of layer 5 dielectric coated: 0.1～0.15mm, 0.2～0.25mm, 0.3～0.35mm, 0.3～0.35mm, 0.5～0.6mm.
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| CN109765633A (en) * | 2018-12-19 | 2019-05-17 | 上海微波技术研究所（中国电子科技集团公司第五十研究所） | Security check passage based on Terahertz safety check instrument |
| CN114531837B (en) * | 2022-02-16 | 2023-08-18 | 宁波招宝磁业有限公司 | Wave-absorbing material with composite structure and preparation method thereof |
| CN117430919B (en) * | 2023-11-28 | 2024-05-24 | 珠海鲁班智造科技有限公司 | High-power wedge wave-absorbing material and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101699564A (en) * | 2009-10-27 | 2010-04-28 | 泰州拓谷超细粉体材料有限公司 | Preparation method of fiber metal matrix composite broadband light and slim type radar wave camouflage coating |
| JP2010245112A (en) * | 2009-04-01 | 2010-10-28 | Nitto Denko Corp | Electromagnetic wave absorbing body |
| CN101902898A (en) * | 2009-12-02 | 2010-12-01 | 安泰科技股份有限公司 | Multilayer type electromagnetic wave absorber and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2010245112A (en) * | 2009-04-01 | 2010-10-28 | Nitto Denko Corp | Electromagnetic wave absorbing body |
| CN101699564A (en) * | 2009-10-27 | 2010-04-28 | 泰州拓谷超细粉体材料有限公司 | Preparation method of fiber metal matrix composite broadband light and slim type radar wave camouflage coating |
| CN101902898A (en) * | 2009-12-02 | 2010-12-01 | 安泰科技股份有限公司 | Multilayer type electromagnetic wave absorber and manufacturing method thereof |
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