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Resin-based heat-proof composite material with surface coated with high-temperature infrared stealth coating and preparation method thereof

A high-temperature infrared and composite material technology, applied in coatings, fire-retardant coatings, camouflage coatings, etc., to achieve the effects of good environmental protection, simple process and equipment, and improved infrared stealth performance

Active Publication Date: 2021-06-08
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the existing technology still cannot solve the above problems well, and a new solution needs to be proposed to solve the problem of high-temperature infrared stealth coating on the surface of resin-based heat-resistant composite materials and its preparation.

Method used

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  • Resin-based heat-proof composite material with surface coated with high-temperature infrared stealth coating and preparation method thereof
  • Resin-based heat-proof composite material with surface coated with high-temperature infrared stealth coating and preparation method thereof
  • Resin-based heat-proof composite material with surface coated with high-temperature infrared stealth coating and preparation method thereof

Examples

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Embodiment 1

[0027] A resin-based heat-resistant composite material coated with a high-temperature infrared stealth coating on the surface. The resin-based heat-resistant composite material uses quartz fiber stitched fabric as a reinforcement, the resin matrix is ​​phenolic resin, and hollow microbeads are used as additives. The resin-based heat-resistant composite Material density is 1.41g / cm 3 , the density of hollow microspheres is 0.35g / cm 3 , the particle size is 30 μm, and the volume content of hollow microspheres in the resin-based heat-resistant composite material is 5%; the high-temperature infrared stealth coating uses silver as a low-emissivity filler, and the mass content of silver in the coating is 90%. Binder is BaO-B 2 o 3 -ZnO system lead-free low melting point glass, the glass softening point temperature is 530°C. The thickness of the high-temperature infrared stealth coating is 6 μm.

[0028] This embodiment also provides a method for preparing a resin-based heat-resi...

Embodiment 2

[0034] A resin-based heat-resistant composite material coated with a high-temperature infrared stealth coating on the surface. The resin-based heat-resistant composite material uses quartz fiber needle-punched parts as reinforcements, the resin matrix is ​​phenolic resin, and hollow microbeads are used as additives. The resin-based heat-resistant The density of the composite material is 0.42g / cm 3 , the density of hollow microspheres is 0.4g / cm 3 , the particle size is 30 μm, and the volume content of hollow microspheres in the resin-based heat-resistant composite material is 8%; the high-temperature infrared stealth coating uses silver as a low-emissivity filler, and the mass content of silver in the coating is 92%. Binder is BaO-B 2 o 3 -ZnO system lead-free low melting point glass, glass softening point temperature is 580°C. The thickness of the high-temperature infrared stealth coating is 12 μm.

[0035]This embodiment also provides a method for preparing a resin-based...

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Abstract

The invention relates to the field of high-temperature stealth materials, and particularly discloses a resin-based heat-proof composite material with the surface coated with a high-temperature infrared stealth coating and a preparation method thereof. The resin-based heat-proof composite material takes high silica fiber, Shi Ying fiber, aluminosilicate fiber or basalt oxide fiber as reinforcements, the resin matrix is one or a mixture of phenolic aldehyde and silicon resin, and the hollow microspheres are additives in the resin matrix; according to the high-temperature infrared stealth coating, precious metal serves as low-emissivity filler, lead-free glass serves as a binder, and the glass softening point temperature is 400-1100 DEG C. The composite material has good thermal insulation and infrared stealth properties, and a glass phase in the high-temperature infrared stealth coating on the surface of the composite material can be quickly melted in a medium-low heat flow high-temperature environment, so that the surface of the decomposed composite material is effectively sealed and filled; and the glass melt and oxide fibers in the composite material are sintered to be firmly attached to the surface of the material so that falling and stripping of the coating caused by decomposition of the composite material are avoided.

Description

technical field [0001] The invention belongs to the field of high-temperature stealth materials, in particular to a resin-based heat-resistant composite material coated with a high-temperature infrared stealth coating and a preparation method thereof. Background technique [0002] Stealth performance is a typical feature of future high-speed aircraft, which can significantly improve its survival and penetration capabilities. High-speed aircraft fly fast, serious aerodynamic heating leads to high temperature on the surface of the aircraft, and significant infrared exposure characteristics, facing severe threats to infrared detection and guidance weapons and equipment. At the same time, in order to ensure the normal operation of the high-speed aircraft, the thermal protection system with the integrated function of anti-heat insulation is an indispensable part of the surface of the high-speed aircraft, which can maintain the stability of the shape and structure of the aircraft ...

Claims

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Application Information

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IPC IPC(8): C08J7/04C09D1/00C09D7/61C09D5/30C08L61/06C08K7/10
CPCC08J7/04C09D1/00C09D7/61C09D5/30C09D5/18C08K7/10C08J2361/06C08L61/06
Inventor 刘海韬黄文质孙逊甘霞云
Owner NAT UNIV OF DEFENSE TECH
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