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Radar-infrared-visible light multi-spectrum camouflage stealth structure and preparation method thereof

A visible light, multi-spectrum technology, used in protective equipment, camouflage devices, chemical instruments and methods, etc., can solve problems such as increasing the probability of weapons and equipment being discovered, and achieve the effects of low cost, strong controllability and small thermal conductivity

Pending Publication Date: 2021-03-26
中国人民解放军96901部队25分队 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existence of such heat sources will greatly increase the probability of weapons and equipment being discovered

Method used

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  • Radar-infrared-visible light multi-spectrum camouflage stealth structure and preparation method thereof
  • Radar-infrared-visible light multi-spectrum camouflage stealth structure and preparation method thereof
  • Radar-infrared-visible light multi-spectrum camouflage stealth structure and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0047] Such as image 3 As shown, the preparation method of the radar-infrared-visible light multi-spectrum camouflage stealth structure provided by the embodiment of the present invention includes the following steps:

[0048] S301: Preparation of radar absorbing structural layer: dip the honeycomb panel on the surface layer in the aqueous solution of the first absorbent, spray the paint containing the second absorbent on the bottom layer on the surface of the honeycomb core, and dry it in an oven at 80°C. Then the surface layer and the bottom layer are bonded successively with three layers of skins; finally, the reflective layer is bonded to the bottom skin. After the bonding is completed, put it into an oven to cure at 80-100°C for more than 6 hours.

[0049] S302: Preparation of infrared heat-insulating stealth layer: spray coating containing infrared heat-insulating filler on the surface skin of the radar structure wave-absorbing coating prepared in S301, and cure at 110...

Embodiment 1

[0053] The composite board provided in Example 1 is sequentially provided with a radar absorbing structure layer, an infrared heat-insulating coating, an adhesive layer, and a wave-transmitting camouflage mesh layer from bottom to top. The radar absorbing structure layer from top to bottom is the surface skin, the surface honeycomb core, the interlayer skin, the bottom honeycomb core, the bottom skin, and the reflective layer.

[0054] In embodiment 1, the absorbent used in the first absorbing coating of the radar absorbing structure layer is carbon nanotubes, and the absorbing agent used in the second absorbing coating of the radar absorbing structure layer is carbonyl iron powder with high magnetic permeability and sendust powder. The components of the first wave-absorbing paint of the radar wave-absorbing structure layer include, by mass parts: 9.3 parts of carbon nanotubes, 100 parts of adhesive, 4 parts of wetting and dispersing agent, 1.5 parts of defoaming agent, and 50...

Embodiment 2

[0060] Following the preparation method of Example 1, the difference between Example 2 and Example 1 is that the components of the first wave-absorbing paint of the radar wave-absorbing structure layer include in parts by mass: the second wave-absorbing paint of the radar wave-absorbing structure layer The components of the wave paint include, in parts by mass: 40 parts of carbonyl iron powder, 35 parts of sendust powder, 20 parts of binder, and 30 parts of solvent. Infrared thermal insulation coating, 13 parts of adhesive, 11.5 parts of filler, 110 parts of diluent, cured at 110°C.

[0061] The stealth performance of embodiment 2 is: radar band L wave band (1-2GHz) average reflectivity-17.5dB, S wave band (2-4GHz) average reflectivity-14.8dB, C wave band (4-8GHz) average reflectivity The average reflectance of X-band (8-12GHz) is -19.4dB, the average reflectance of Ku-band (12-18GHz) is -26.1dB, and the average reflectance of Ka-band (26.5-40GHz) is -24.8dB; In the infrared ...

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Abstract

The invention belongs to the technical field of stealth materials in electronic materials, and discloses a radar-infrared-visible light multi-spectrum camouflage stealth structure and a preparation method thereof. The stealth structure comprises a radar wave-absorbing structure layer, an infrared heat-insulating coating layer, a bonding layer and a wave-transmitting camouflage net layer which aresequentially arranged from bottom to top; the radar wave-absorbing structure layer comprises an upper layer skin, a surface layer honeycomb core, an interlayer skin, a bottom layer honeycomb core, a bottom layer skin and a reflecting layer which are sequentially arranged from top to bottom. The stealth structure not only has good radar wave-absorbing performance in L, S, C, X, Ku and Ka wave bands, but also has infrared and visible light stealth functions. The radar-infrared-visible light multi-spectrum camouflage stealth structure provided by the invention solves the problem of multi-spectrumcamouflage of the wave-absorbing material in the radar wave band, the infrared wave band and the visible light, and meanwhile, the method is simple in process, strong in controllability and relatively low in cost, and has important commercial application value.

Description

technical field [0001] The invention belongs to the field of stealth materials in electronic materials, in particular to a radar-infrared-visible light multi-spectrum camouflage stealth structure and a preparation method thereof. Background technique [0002] With the development of military technology, the once single radar detection technology has gradually transformed into multiple detection directions such as visible light, infrared, and radar. The emergence of new detection technology seriously threatens the survival probability and survival time of weapons on the battlefield. Therefore, visible light, infrared, and radar multi-spectrum stealth materials have become the focus of research and development of stealth materials in various countries. [0003] Among them, radar absorbing materials include structural radar absorbing materials and coated radar absorbing materials. favored. Aramid paper honeycomb sandwich structure stealth material is a common structural radar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B3/12B32B7/12B32B9/00B32B9/04B32B15/04B32B15/20B32B27/06B32B27/36B32B33/00C09D5/32C09D201/00C09D163/00C09D7/61C09D5/30D21H17/00D21H21/12D21H21/14F41H3/00
CPCB32B3/12B32B27/06B32B27/36B32B15/20B32B15/04B32B9/04B32B7/12B32B33/00F41H3/00D21H21/14D21H21/12D21H17/00C09D5/32C09D201/00C09D163/00C09D7/61C09D5/30C08K2003/2227B32B2255/10B32B2255/26B32B2307/20B32B2260/046B32B2262/106
Inventor 王义王彦淇李广德龙昌刘世利何惊华李江陵丁铁伢崔光振陈路王赟尹生
Owner 中国人民解放军96901部队25分队
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