A segmented corrugated structure wave-absorbing honeycomb composite material and its preparation method

Abstract

The invention discloses a segmented corrugated wave-absorbing honeycomb sandwich composite material, which is composed of a wave-absorbing honeycomb and matching panels placed on the upper and lower sides of the wave-absorbing honeycomb. The wave-absorbing honeycomb is impregnated with wave-absorbing glue The honeycomb core material is made of processed honeycomb core material, and is impregnated in segments; the impregnation layer of the absorbing honeycomb honeycomb wall is a corrugated structure; the matching panels on the upper and lower sides are glass steel plates; the absorbing honeycomb sandwich composite material is The sandwich structure, the wave-absorbing honeycomb and the matching panel are bonded by the prepreg after being formed by the autoclave process. The invention proposes a segmented corrugated structure wave-absorbing honeycomb sandwich composite material and its preparation method. The prepared wave-absorbing glue is used to impregnate the honeycomb core material up and down in segments, and a self-made mold is used to prepare the corrugated structure. , the prepared wave-absorbing honeycomb sandwich composite material has the characteristics of light weight, thin thickness, wide wave-absorbing frequency, and strong load-bearing capacity.

Description

technical field [0001] The invention belongs to the field of wave-absorbing materials, and more specifically relates to a segmented wave-absorbing honeycomb sandwich composite material with a corrugated structure and a preparation method thereof. Background technique [0002] Honeycomb core material is a new type of light-weight and high-strength material. fields are widely used. [0003] With the development of electronic information technology, more and more electronic instruments and equipment have entered our lives. The use of so many new electronic instruments and equipment brings convenience to our lives, but at the same time brings serious electromagnetic radiation pollution problems, which not only cause information leakage, communication interference and other problems, but also seriously endanger people's health. Therefore, how to reduce or even eliminate the harm caused by electromagnetic waves has become the focus of people's research, and high-performance broa...

AI Technical Summary

Problems solved by technology

[0004] Most of the wave-absorbing honeycomb sandwich composite materials prepared by the existing technology adopt thicker honeycomb core material or multi-layer wave-absorbing honeycomb composite structure. The material is thick and heavy, which does not conform to the development trend of "thin, light, wide and strong" absorbing materials

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