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Segmented wave-absorbing honeycomb composite material with corrugated structure and preparation method thereof

A composite material and corrugated technology, applied in the field of wave-absorbing materials, can solve problems that do not meet the development trend of thin, light, wide, and strong wave-absorbing materials, and thick wave-absorbing honeycomb sandwich composite materials, etc., to achieve light weight and load-bearing Strong, good environmental resistance effect

Inactive Publication Date: 2019-05-03
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Segmented wave-absorbing honeycomb composite material with corrugated structure and preparation method thereof
  • Segmented wave-absorbing honeycomb composite material with corrugated structure and preparation method thereof
  • Segmented wave-absorbing honeycomb composite material with corrugated structure and preparation method thereof

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[0031] Example: Preparation of segmented corrugated wave-absorbing honeycomb sandwich composite material in the upper part of carbonyl iron and lower part of carbon black

[0032] A wave-absorbing honeycomb sandwich composite material, including wave-absorbing honeycombs and matching panels placed on the upper and lower sides of the wave-absorbing honeycomb; the honeycomb core material is impregnated in stages, and the upper part is impregnated with a wave-absorbing glue containing carbonyl iron. 2.5mm, the lower part is impregnated with a wave-absorbing glue containing carbon black, the impregnation height is 2.5mm; the wave-absorbing honeycomb honeycomb wall impregnation layer is a corrugated structure, the width of the corrugation line is 0.5mm, the corrugation line is 3, the corrugation line is horizontal Arranged in parallel; the honeycomb core material is aramid paper honeycomb, thickness 5mm, cell size 1.83mm, inscribed circle diameter 3.2mm, density 29kg / m 3 ; The matching...

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Abstract

The present invention discloses a segmented wave-absorbing honeycomb sandwich composite material with a corrugated structure, which is formed by a wave-absorbing honeycomb and matching panels arrangedon upper and lower sides of the wave-absorbing honeycomb. The wave-absorbing honeycomb is made of a honeycomb core material segmentally impregnated with a wave-absorbing adhesive solution; an impregnated layer of the wall of the wave-absorbing honeycomb is of a corrugated structure; the matching panels on the upper and lower sides are glass steel plates; and the wave-absorbing honeycomb sandwichcomposite material is of a sandwich structure, with the wave-absorbing honeycomb and the matching panels being bonded with a prepreg which is molded by an autoclave process. The present invention provides a segmented wave-absorbing honeycomb sandwich composite material with a corrugated structure and a preparation method thereof, wherein a honeycomb core material is segmentally impregnated at thetop and the bottom with a prepared wave-absorbing adhesive solution and a corrugated structure is prepared by using a self-designed mold, so that the prepared wave-absorbing honeycomb sandwich composite material has the characteristics of light weight, small thickness, wide absorption band, high bearing capacity and the like.

Description

Technical field [0001] The invention belongs to the field of wave absorbing materials, and more specifically relates to a segmented corrugated structure wave absorbing honeycomb sandwich composite material and a preparation method thereof. Background technique [0002] Honeycomb core material is a new type of light-weight and high-strength material. Its appearance is similar to natural honeycomb. As a special material structure, it has the advantages of higher specific strength and better heat insulation and vibration reduction effects. Therefore, it is used in aerospace, etc. The field is 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 has brought us convenience in life, and at the same time brought serious electromagnetic radiation pollution problems, which not only caused information leakage and communication int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B17/06B32B3/12B32B33/00
CPCH01Q17/002
Inventor 段玉平戴旭昊杨萱
Owner DALIAN UNIV OF TECH
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