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Transient, bearing and stealth integrated composite material as well as preparation method and application thereof

A composite material and transient technology, applied in the direction of heat exchange materials, chemical instruments and methods, camouflage paint, etc., can solve the problems that drone materials cannot achieve transient disappearance, do not have stealth functions, etc., and achieve simple structure, Easy to form, good mechanical properties

Active Publication Date: 2021-08-31
NAT UNIV OF DEFENSE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a composite material integrating transient state, carrying capacity and stealth, and its preparation method and application, which are used to overcome the defects in the prior art that UAV materials cannot realize transient disappearance and do not have stealth function.

Method used

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  • Transient, bearing and stealth integrated composite material as well as preparation method and application thereof
  • Transient, bearing and stealth integrated composite material as well as preparation method and application thereof
  • Transient, bearing and stealth integrated composite material as well as preparation method and application thereof

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preparation example Construction

[0051] The present invention also proposes a method for preparing a composite material integrating transient state, bearing capacity and stealth, comprising the following steps:

[0052] S1: Select a phase change matrix, heat and melt the phase change matrix to obtain a melt; the phase change matrix undergoes a phase change under a thermal trigger condition;

[0053] S2: adding a reinforcement phase to the melt, mixing uniformly to obtain a mixture; the reinforcement phase includes a mechanical reinforcement phase, a thermal conductivity enhancement phase, a photothermal enhancement phase and a wave absorption enhancement phase;

[0054] The four reinforcement phases of mechanical enhancement phase, heat conduction enhancement phase, photothermal enhancement phase and wave absorption enhancement phase can be the same material or multiple materials.

[0055] S3: Pour the mixture into a mold, press molding, and cool to room temperature to obtain a molding material;

[0056] S4:...

Embodiment 1

[0066] This embodiment provides a composite material that integrates transient state, load bearing and stealth. The composite material is a thermally triggered solid-liquid phase change composite material, including a phase change matrix and a reinforcing phase. The phase change matrix and the The reinforcing phase is compounded together through interfacial interaction;

[0067] The phase change matrix is ​​paraffin and ethylene-vinyl acetate, and a phase change occurs under thermal trigger conditions;

[0068] The reinforcing phase is carbon black and graphene, and both carbon black and graphene are mechanically reinforcing phases, thermal conductivity enhancing phases, photothermal enhancing phases and wave-absorbing enhancing phases, and the mass ratio of the reinforcing phases to the phase change matrix is ​​0.4:1 ;

[0069] The surface of the composite material is coated with a coating, and in this embodiment, the coating is a polyurethane paint;

[0070] This embodimen...

Embodiment 2

[0077] This embodiment provides a composite material that integrates transient state, load bearing and stealth. The composite material is a thermally triggered solid-liquid phase change composite material, including a phase change matrix and a reinforcing phase. The phase change matrix and the The reinforcing phase is compounded together through interfacial interaction;

[0078] The phase change matrix is ​​paraffin and polycaprolactone, which undergoes a phase change under thermal trigger conditions;

[0079] The reinforcement phase is carbon black and silicon carbide fiber, and both carbon black and silicon carbide fiber are mechanical reinforcement phase, thermal conductivity enhancement phase, photothermal enhancement phase and wave absorption enhancement phase, and the mass ratio of reinforcement phase to phase change matrix is ​​0.75 :1;

[0080] The surface of the composite material is coated with a coating, which is an acrylic paint in this embodiment;

[0081] This ...

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Abstract

The invention discloses a transient, bearing and stealth integrated composite material and a preparation method and application thereof. The composite material is a solid-liquid phase change composite material based on thermal triggering and comprises a phase change matrix and reinforcing phases. The phase change matrix and the reinforcing phases are compounded together through interface action. The phase change matrix is subjected to phase change under a thermal triggering condition. The reinforcing phases comprise a mechanical reinforcing phase, a heat-conducting reinforcing phase, a photo-thermal reinforcing phase and a wave-absorbing reinforcing phase. The surface of the composite material is coated with a coating. The preparation method comprises the steps of heating and melting the phase change matrix, mixing the phase change matrix with the reinforcing phases, performing compression molding, applying the coating and the like. The composite material provided by the invention is simple in structure, easy to form, low in density and good in mechanical property, has radar stealth and visible light stealth functions, and can be quickly decomposed. The preparation method provided by the invention is simple in process and wide in application range, and any required shape can be prepared in a pouring and mold pressing manner.

Description

technical field [0001] The invention relates to the technical field of functional materials, in particular to a composite material integrating transient, bearing and stealth, and its preparation method and application. Background technique [0002] In the future battlefield environment, the self-destruction UAV with stealth function can avoid enemy detection in a limited time, provide key data, and then disappear in a short time, or decompose in the natural environment, thus providing a new Intelligence, reconnaissance and surveillance capabilities to prevent leakage of relevant intelligence or technology. [0003] Most of the existing conventional UAV material systems use stable materials with high mechanical properties and are not easy to degrade and damage. They cannot achieve transient disappearance and do not have stealth functions, and cannot meet the needs of future battlefields. Contents of the invention [0004] The invention provides a composite material which i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C08L91/06C08L23/08C08L67/04C08K3/04C08K7/10C08K7/06C09D5/30C09D175/04C09D133/00C09K5/06
CPCC08J7/0427C08L91/06C08L23/0853C08L67/04C08K3/042C08K7/06C08K7/10C09D5/30C09D175/04C09D133/00C09K5/06C08J2391/06C08J2323/08C08J2475/04C08J2367/04C08J2433/00C08K3/04
Inventor 刘东青谢炜程海峰
Owner NAT UNIV OF DEFENSE TECH
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