CN101837666A - Film-structure X-waveband radar wave-absorbing material - Google Patents
Film-structure X-waveband radar wave-absorbing material Download PDFInfo
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- CN101837666A CN101837666A CN 201010148077 CN201010148077A CN101837666A CN 101837666 A CN101837666 A CN 101837666A CN 201010148077 CN201010148077 CN 201010148077 CN 201010148077 A CN201010148077 A CN 201010148077A CN 101837666 A CN101837666 A CN 101837666A
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Abstract
The invention relates to a film-structure X-waveband radar wave-absorbing material which mainly comprises six wave-absorbing coatings and five plastic films. A plastic film is arranged between every two wave-absorbing coatings, each wave-absorbing coating is a mixture of 1.50 parts of coupling agent, 50 parts of thinner, 150 parts of carbonyl iron absorber, 39.83 parts of 60 percent epoxide resin and 12.93 parts of curing agent, the plastic films adopt one of polyvinyl chloride, polyethylene, polypropylene, polyethylene terephthalate, polystyrene, ethylene/ethyl acetate and daiamid, the coupling agent adopts a silane coupling agent KH550, the thinner is prepared from xylene and butanol in a volume ratio of 7:3 or prepared from xylene, acetone and butyl acetate in a volume ratio of 4:3:3, and the curing agent adopts polyetherimide D400. The wave-absorbing material has small thickness, low density, light weight, strong mechanical property, simple production process, low cost and good wave-absorbing performance in the X waveband, thereby being suitable for use on X-waveband radars or arms with stealth performance requirement.
Description
Technical field
The present invention relates to a kind of radar absorbing, is a kind of multi-layer film structure radar absorbing that is used to absorb X-band specifically.
Background technology
Present stage, the radar wave detection wave band mainly was X-band, i.e. 8-12GHz.Traditional X-ray band radar absorbing material is mainly based on the carbonyl iron absorbent, and with the compound wave-absorbing coating material of preparing of adhesive, 1mm thickness coatings material face density often reaches 3-4kg/m
2, and in the 8-12GHz frequency range, its reflectivity also is difficult to reach-8dB, can not satisfy user's actual demand far away.
Summary of the invention
Big in order to solve in the prior art X-band radar absorbing material surface density, quality is heavy, waits not enoughly to the X-band absorptivity is low, and it is little to the purpose of this invention is to provide a kind of surface density, light weight, the film-structure X-waveband radar wave-absorbing material high to the X-band absorption efficiency.
The technical solution used in the present invention is: a kind of film-structure X-waveband radar wave-absorbing material, its technical characterstic is mainly to comprise six layers of microwave absorbing coating and five layers of plastic sheeting, be equipped with plastic sheeting between every two-layer microwave absorbing coating, described every layer of microwave absorbing coating is the mixture of 1.50 parts of coupling agents, 50 parts of diluents, 150 parts in carbonyl iron absorbent, 39.83 parts of 60% epoxy resin, 12.93 parts in curing agent.
Described plastic sheeting be in the non-wave absorbtion film made of resins such as polyvinyl chloride, polyethylene, polypropylene, PETG, polystyrene, ethylene/acetic acid ethene, polyamide any one.
Described coupling agent is silane coupler KH550.
Described diluent is that volume ratio is 7: 3 the dimethylbenzene and the mixed solvent of n-butanol, or for diluent be that volume ratio is the mixed solvent of 4: 3: 3 dimethylbenzene, acetone and butyl acetate.
Described curing agent is polyetheramine D400.
Adopt above technical scheme, the invention has the beneficial effects as follows:
1, absorbing material adopts the non-plastic of adsorbing wave film of resinae, have that density is little, nonhazardous, high temperature resistant, fire-retardant, corrosion-resistant, anti-aging, high strength, advantage such as rigidity is strong, pliability is good, can reduce the surface density of absorbing material, improve the serviceability and the service life of absorbing material, be adapted at using under the multiple environmental requirement;
2, the content of carbonyl iron absorbent is lower in the microwave absorbing coating that applies on the plastic sheeting, and coat side density is less than 2.3kg/m
2, the microwave absorbing coating surface density is low, is applicable to the high facilities and equipment of various opposites density requirements, and this microwave absorbing coating reduced the usage ratio of carbonyl iron absorbent, and the absorbing material production cost is low;
3, adopt six layers of microwave absorbing coating and per two interlayers to be provided with the structure of plastic sheeting, after electromagnetic wave enters microwave absorbing coating, meeting come back reflective and lose between two microwave absorbing coatings, be similar to the total reflection in the optics, thereby form the electromagnetic wave trap, electro-magnetic wave absorption is effective, absorbing material in 8-12GHz frequency range internal reflection rate all less than-9dB;
The present invention adopts six layers of microwave absorbing coating and five plastic sheeting spaces to be pressed into absorbing material, absorbing material thickness is little, density is low, light weight, mechanical property height, production technology is simple, cost is low, only need directly be attached at the suction wave surface gets final product, absorbing material comprehensive utilization electromagnetic wave trap principle improves the X-band absorbing property, is applicable to X-band radar or X-band is had the weaponry of stealthy performance requirement.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is an absorbing property resolution chart of the present invention.
Among the figure: microwave absorbing coating 1, plastic sheeting 2.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Film-structure X-waveband radar wave-absorbing material shown in Figure 1, mainly comprise six layers of microwave absorbing coating 1 and five plastic sheetings 2, five plastic sheetings 2 evenly are arranged at intervals between the every two-layer microwave absorbing coating of six layers of microwave absorbing coating 1, and the composition of every layer of microwave absorbing coating 1 is: 1.50 parts of coupling agents, 50 parts of diluents, 150 parts in carbonyl iron absorbent, 39.83 parts of 60% epoxy resin, 12.93 parts in curing agent; Plastic sheeting be in the non-wave absorbtion film made of polyvinyl chloride, polyethylene, polypropylene, PETG, polystyrene, ethylene/acetic acid ethene, polyamide and other resins any one; Coupling agent is silane coupler KH550; Diluent is that volume ratio is 7: 3 dimethylbenzene and a n-butanol, or diluent is that volume ratio is 4: 3: 3 dimethylbenzene, acetone and a butyl acetate; Curing agent is polyetheramine D400.
Preparing this absorbing material step is:
1. getting the 1.50g coupling agent dilutes with the 50g diluent, join in the 150g carbonyl iron absorbent, left standstill after stirring evenly 30 minutes, adding 60% epoxy resin 39.83g in mixture stirs evenly, add curing agent 12.93g again, the coating that mixes is sheared with high-speed shearing machine left standstill that to be cooled to coating stand-by in 15 minutes;
2. with hairbrush the described coating of step 1 is evenly coated on the processed plastic film, put into 30 ℃ baking oven 1-1.3 hour after, oven temperature is risen to 60 ℃ solidified 5 hours, make 4 identical lightweight films by this step;
3. with hairbrush the described coating of step 1 is evenly coated in the positive and negative two sides of processed plastic film, put into 30 ℃ baking oven 1.3-1.8 hour after, oven temperature is risen to 60 ℃ solidifies and made the 5th lightweight film in 5 hours;
4. get 60% epoxy resin E-44 and mix the back at 2: 1 as adhesive by ratio of quality and the number of copies with curing agent D-400, use 5 lightweight films that adhesive makes step 3,4 to paste, put into the curing that 60 ℃ baking oven carried out adhesive in 2 hours after the stickup and get final product by order from top to bottom.
Figure 2 shows that the absorbing property figure of absorbing material, wherein a is the absorbing property curve of the absorbing material of two plastic sheetings of employing and three layers of microwave absorbing coating, b is the absorbing property curve of the absorbing material of three plastic sheetings of employing and four layers of microwave absorbing coating, c is the absorbing property curve of the absorbing material of four plastic sheetings of employing and five layers of microwave absorbing coating, d is the absorbing property curve of the absorbing material of five plastic sheetings of employing and six layers of microwave absorbing coating, and e is the absorbing property curve of the absorbing material of six plastic sheetings of employing and seven layers of microwave absorbing coating.
The data that record in the additive process of this film-type absorbing material, a, b, c, d, five kinds of assembled schemes of e are arranged respectively, the d scheme is best data (this moment, absorbing material was 5 plastic sheetings and 6 microwave absorbing coatings) at X-band as seen from the figure, the absorbing material of d scheme can both satisfy less than-8dB at 8-12GHz, plastic sheeting and microwave absorbing coating quantity are too much very few all can not to satisfy condition, even satisfy increase, surface density increase that electrical property also can cause waste of material and absorbing material thickness, can't satisfy actual service conditions.
Claims (5)
1. film-structure X-waveband radar wave-absorbing material, it is characterized in that: mainly comprise six layers of microwave absorbing coating and five layers of plastic sheeting, be equipped with plastic sheeting between every two-layer microwave absorbing coating, described every layer of microwave absorbing coating is the mixture of 1.50 parts of coupling agents, 50 parts of diluents, 150 parts in carbonyl iron absorbent, 39.83 parts of 60% epoxy resin, 12.93 parts in curing agent.
2. film-structure X-waveband radar wave-absorbing material according to claim 1 is characterized in that: described plastic sheeting be in polyvinyl chloride, polyethylene, polypropylene, PETG, polystyrene, ethylene/acetic acid ethene, the polyamide any one.
3. film-structure X-waveband radar wave-absorbing material according to claim 1 is characterized in that: described coupling agent is silane coupler KH550.
4. film-structure X-waveband radar wave-absorbing material according to claim 1, it is characterized in that: described diluent comprises dimethylbenzene and n-butanol, the volume ratio of dimethylbenzene and n-butanol is 7: 3, or diluent comprises dimethylbenzene, acetone and butyl acetate, and the volume ratio of dimethylbenzene, acetone and butyl acetate is 4: 3: 3.
5. film-structure X-waveband radar wave-absorbing material according to claim 1 is characterized in that: described curing agent is polyetheramine D400.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101480775A CN101837666B (en) | 2010-04-16 | 2010-04-16 | Film-structure X-waveband radar wave-absorbing material |
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| CN2010101480775A CN101837666B (en) | 2010-04-16 | 2010-04-16 | Film-structure X-waveband radar wave-absorbing material |
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| CN101837666A true CN101837666A (en) | 2010-09-22 |
| CN101837666B CN101837666B (en) | 2013-12-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105172298A (en) * | 2014-05-27 | 2015-12-23 | 深圳光启创新技术有限公司 | Magnetic wave-absorbing film and preparation method thereof |
| CN105269911A (en) * | 2014-05-27 | 2016-01-27 | 深圳光启创新技术有限公司 | Wave absorbing material and forming method thereof |
| CN108092006A (en) * | 2016-11-23 | 2018-05-29 | 南京冠旭新材料科技有限公司 | Stratiform wideband radar inhales wave plate and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289568A (en) * | 2008-06-16 | 2008-10-22 | 南昌大学 | Preparation method of cobalt-plated carbon nanotube/epoxy resin wave-absorbing stealth composite material |
-
2010
- 2010-04-16 CN CN2010101480775A patent/CN101837666B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101289568A (en) * | 2008-06-16 | 2008-10-22 | 南昌大学 | Preparation method of cobalt-plated carbon nanotube/epoxy resin wave-absorbing stealth composite material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105172298A (en) * | 2014-05-27 | 2015-12-23 | 深圳光启创新技术有限公司 | Magnetic wave-absorbing film and preparation method thereof |
| CN105269911A (en) * | 2014-05-27 | 2016-01-27 | 深圳光启创新技术有限公司 | Wave absorbing material and forming method thereof |
| CN108092006A (en) * | 2016-11-23 | 2018-05-29 | 南京冠旭新材料科技有限公司 | Stratiform wideband radar inhales wave plate and preparation method thereof |
| CN108092006B (en) * | 2016-11-23 | 2020-05-22 | 南京冠旭新材料科技有限公司 | Layered broadband radar wave absorbing plate and preparation method thereof |
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| CN101837666B (en) | 2013-12-11 |
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Owner name: JIANGSU WANHUA TUOGU NEW MATERIAL TECHNOLOGY CO., Free format text: FORMER OWNER: TAIZHOU TUOGU SUPER-FINE MATERIALS CO., LTD. Effective date: 20120815 |
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Effective date of registration: 20120815 Address after: 225411 No. 2 west station, Huangqiao Industrial Park, Jiangsu, Taixing Applicant after: Taizhou Tycho Ultra Fine Powder Material Co., Ltd. Address before: 225411 No. 6 Shengli East Road, Huangqiao Industrial Park, Jiangsu, Taixing Applicant before: Taizhou Tuogu Super-fine Materials Co., Ltd. |
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