Method for preparing electromagnetic shielding compound material

Abstract

A preparation method for an electromagnetic shielding compound material includes 1) selecting a wood material to be immersed for 1-24h in magnetic metal salt solution, then to be dried 2) further controlling its size and shape, fully mixing it with modified resin and forming it into formation under certain temperature and pressure controlling its pore space rate and distribution 3) high temperature processing it under 250í½1500deg.C and bright inert atmosphere, temperature rising speed: 1-20deg.C / m for 1-6h 4) coating process with organic material controlling the thickness and solidifying at room temperature.

Description

technical field

[0001] The invention relates to a preparation method of a composite material, in particular to a preparation method of a light-weight high-efficiency electromagnetic shielding composite material with high absorption and low reflection electromagnetic wave capability, belonging to the field of composite materials. Background technique

[0002] With the development of science and technology and the electronic industry, the application of various electronic instruments and equipment is also increasing day by day. These electronic instruments and equipment all emit electromagnetic radiation of various energies, so electromagnetic interference is becoming more and more prominent, and has become a problem for many equipment, The main obstacle to the normal functioning of the system, and the pollution of electromagnetic waves to the human working and living environment has become a serious social problem, threatening human health, and due to the leakage of electromag...