Electromagnetic compatible wood based composite material with shielding cloth covered on surface and preparation thereof

A technology of composite materials and compatible wood, which is applied in the field of electromagnetic protection materials preparation, can solve the problems of few researches on absorbing materials, achieve the effect of improving the secondary reflection problem, the preparation process is simple and easy, and the shielding efficiency is high
CN101384159AInactive Publication Date: 2009-03-11BEIJING UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIJING UNIV OF TECH
Publication Date
2009-03-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a surface mount shielding cloth electromagnetic compatibility wood-based composite material and the preparation method thereof, belonging to the field of electromagnetic compatibility material. The surface mount shielding cloth electromagnetic compatibility wood-based composite material has electromagnetic shielding function and electromagnetic wave absorption function; the surface mount shielding cloth electromagnetic compatibility wood-based composite material fulfills the electromagnetic shielding function through surface mount nickelplated or copperplated shielding cloth and the electromagnetic wave absorption function through a surface mount wave absorption plate; the wave absorption plate is prepared with silicon rubber as a basal body and the filled ferrite, carbonyl iron, graphite and silicon carbide as absorbent, and then the absorbent is stuck to the wood; the electromagnetic compatibility wood-based composite material has shield effectiveness of around 60 dB, electromagnetic wave absorbency ranges from 1 MHz to 1.5 GHz with the minimum value of -24.85 and the reflectivity of 240 MHz with the bandwidth being less than -10 dB.
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Description

technical field

[0001] A surface-coated shielding cloth electromagnetically compatible wood-based composite material and a preparation method thereof. The wood-based composite material is an electromagnetic protection material that simultaneously realizes electromagnetic shielding and electromagnetic wave absorption functions, and involves a gluing process, selection of a wave absorber and a matrix The invention relates to the design of a wave-absorbing structure and belongs to the technical field of electromagnetic protection material preparation. Background technique

[0002] Wood is the only renewable and naturally degradable biological resource among the four major materials (steel, cement, wood and plastic) in the world today, and as a material with superior performance, it is widely used in various fields such as construction, furniture, papermaking, transportation, etc. . The development of wood material research is closely related to the development of society, econ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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