A kind of compatible stealth anti-icing material and its preparation method and application

An anti-icing and patterning technology, applied in camouflage paint, induction heating, inductive current source, etc., can solve the problems of restricting the all-weather safe flight ability of stealth aircraft, strong reflection effect affecting stealth effect, and inability to realize anti-icing, etc. Achieve basic transmission simulation results, consistent transmission simulation results, and avoid heat loss

Active Publication Date: 2022-06-21
BEIHANG UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in traditional anti-icing materials, the temperature of the hot air anti-icing method is as high as 200-300°C, and the wave-absorbing coating and the structure of the wave-absorbing body cannot withstand the high temperature of 200-300°C; Strong reflection greatly affects the stealth effect; passive anti-icing methods relying solely on superhydrophobic methods cannot achieve complete anti-icing under flight conditions
Therefore, there is currently no anti-icing technology compatible with stealth, which limits the all-weather safe flight capability of stealth aircraft

Method used

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  • A kind of compatible stealth anti-icing material and its preparation method and application
  • A kind of compatible stealth anti-icing material and its preparation method and application
  • A kind of compatible stealth anti-icing material and its preparation method and application

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preparation example Construction

[0067] The present invention also provides the preparation method of the compatible stealth anti-icing material described in the above technical solution, comprising the following steps:

[0068] Provide insulation and thermal insulation;

[0069] Prepare a patterned heating layer on the surface of the insulating and heat insulating layer;

[0070] preparing an insulating and thermally conductive layer on the surface of the patterned heating layer;

[0071] A hydrophobic layer is prepared on the surface of the insulating and heat-conducting layer to obtain the compatible stealth anti-icing material.

[0072] The present invention provides an insulating and heat insulating layer.

[0073] The present invention does not specifically limit the preparation method of the insulating and heat-insulating layer, as long as the material and thickness of the insulating and heat-insulating layer can be ensured. In the present invention, the material of the insulating and heat-insulatin...

Embodiment 1

[0119] The silicone rubber, hollow glass microspheres and toluene are mixed in a mass ratio of 4:1:5 to obtain an insulating and heat-insulating layer slurry. The obtained insulating and heat-insulating layer slurry is sprayed on the surface of the epoxy resin matrix, and after drying, a thickness of 50 μm is obtained. insulation layer;

[0120] After the non-electrode area is covered and protected by the tape, copper is magnetron sputtered in the electrode area at both ends of the insulating and heat insulating layer, and the tape is removed to obtain the insulating and heat insulating layer system containing electrodes;

[0121] Polyurethane, conductive carbon black and toluene are ultrasonically dispersed and mixed in a mass ratio of 4:1:5 to obtain a heating layer slurry; the area that does not need to prepare a heating insulation layer is covered with a mask, and the obtained heating layer slurry is sprayed on the insulation and heat insulation layer. The surface of the l...

Embodiment 2

[0130] The silicone rubber, hollow glass microspheres and toluene are mixed in a mass ratio of 4:1:5 to obtain an insulating and heat-insulating layer slurry. The obtained insulating and heat-insulating layer slurry is sprayed on the surface of the epoxy resin matrix, and after drying, a thickness of 100 μm is obtained. insulation layer;

[0131] After the non-electrode area is covered and protected by the tape, copper foil is pasted on the electrode regions at both ends of the insulating and heat-insulating layer, and the tape is removed to obtain an insulating and heat-insulating layer system containing electrodes;

[0132] The styrene-butadiene rubber, nano-graphite powder and toluene are dispersed and mixed ultrasonically according to the mass ratio of 4:1:5 to obtain the heating layer slurry; the area that does not need to prepare the heating insulating layer is covered with a mask, and the obtained heating layer slurry is sprayed on the insulating layer. On the surface o...

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Abstract

The invention belongs to the technical field of functional materials, in particular to a compatible stealth anti-icing material and its preparation method and application. The compatible stealth anti-icing material provided by the present invention includes an insulating and heat-insulating layer, a patterned heating layer, an insulating and heat-conducting layer, and a hydrophobic layer that are sequentially stacked; the patterned heating layer has a patterned hollow structure. In the present invention, the patterned heating layer is conducive to making part of the electromagnetic wave generate eddy current and resonance in the patterned hollow structure and be absorbed by the compatible stealth anti-icing material, and a part of the electromagnetic wave is freely diffracted, which is conducive to reducing the radar scattering cross section; At the same time, when current is applied, heat can be generated quickly and uniformly, achieving the effect of electric heating anti-icing and deicing. Through the synergistic effect of various structures, the present invention is beneficial to make the equivalent impedance wave compatible with the stealth anti-icing material nearly consistent with the impedance wave of the air, reduce the reflectivity of electromagnetic waves, improve the transmittance of electromagnetic waves, and ensure the anti-icing effect under the condition Realize electromagnetic wave stealth.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and in particular relates to a compatible stealth anti-icing material and a preparation method and application thereof. Background technique [0002] Aircraft icing is the phenomenon in which a layer of ice builds up on the surface of an aircraft's components as it flies in the atmosphere. Aircraft icing may occur on the wing, tail, leading edge of the engine intake, windshield and instrument sensor head, etc., and is an important cause of flight accidents. The anti-icing ability of aircraft has become an important indicator to measure the all-weather flight performance of aircraft. . Stealth aircraft (stealth aircraft) require extremely low radar cross section (RCS), and require low electrical conductivity, high dielectric loss or high magnetic loss absorbing materials or absorbing structures on the surface of the aircraft. The urgent need for anti-icing. [0003] However, in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B6/04H05B6/06H05K9/00C09D183/04C09D175/04C09D109/06C09D7/61C09D7/40C09D5/30C08K3/22
CPCH05B6/04H05B6/06H05K9/0081C09D183/04C09D175/04C09D109/06C09D7/61C09D7/70C09D5/30C08K2003/2227C08K2201/001C08K2201/011C08K7/28C08K3/04C08K3/22C08K3/36C09D5/1693C08G77/04H05B3/145H05B2214/04H05B2214/02H05B2203/005H05B2203/002H05B2203/013H05B2203/017H05B3/265B64D15/12B05D5/08B05D5/00B05D5/12B05D7/56C08J7/0423C08J2363/00C08J2483/04C08J2409/06C08J2475/04C09D5/00C23C14/042C23C14/205C23C14/35H05B3/22
Inventor 陈华伟刘晓林陈济琛朱彦曈赵泽辉王泽林澜占潇洋马峥
Owner BEIHANG UNIV
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