Wave-absorbing composite material containing liquid-phase components as well as preparation method and application of wave-absorbing composite material

By using the structure of a porous composite layer and a fine-tuning layer in the absorbing composite material, the wide absorption characteristics of the liquid phase components and the active sweat cooling effect are used to solve the problem of impedance matching of complex curved surface absorbing materials in the prior art, and the efficient wide-frequency absorbing and cooling effect is achieved.

CN119695518APending Publication Date: 2025-03-25SHENZHEN AEROSPACE NEW MATERIALS TECH CO LTD
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Patent Information

Application Number
CN202311249307.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-25
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

It is difficult to prepare high-efficiency wide-frequency wave absorbing materials suitable for complex curved surfaces in the prior art, especially because the real and imaginary parts of the aqueous liquid phase working fluid have a high dielectric constant, and it is difficult to obtain better impedance matching for a single structure.

Method used

The absorbing composite material containing liquid phase components is used, including a porous composite layer and a fine-tuning layer. The porous composite layer is composed of porous material filled with liquid phase components. The fine-tuning layer is equipped with an infusion channel to continuously supply liquid. The materials are all prepared using flexible materials.

Benefits of technology

It realizes efficient wave absorption performance in a specific wide band range, and through the active sweating and cooling effect of the liquid phase working fluid, the surface temperature of the material is reduced and the performance stability under service conditions is improved.

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Abstract

The invention provides a wave-absorbing composite material containing liquid phase components and a preparation method and application thereof, and relates to the technical field of wave-absorbing materials, the wave-absorbing composite material comprises a porous composite layer and a micro-regulation layer; the porous composite layer is a porous material containing a liquid-phase component, and pores of the porous material are filled with the liquid-phase component; the micro-control layer and the porous material are both prepared from a flexible material; the micro-regulation layer is provided with a liquid conveying channel, the liquid conveying channel is connected with an external liquid supply source, and the micro-regulation layer provides liquid phase components for the porous composite layer through the liquid conveying channel. The wave-absorbing composite material containing the liquid phase component is wide in working frequency band, good in flexibility, suitable for complex curved surfaces and capable of having the active sweating and cooling functions.
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