A kind of wave-absorbing radiation-proof plastic and its preparation method

Abstract

The present invention discloses a wave absorption and radiation protection plastic and a preparation method thereof. The wave absorption and radiation protection plastic comprises a plastic raw material, a wave absorption and radiation protection function powder material and an auxiliary agent, wherein the plastic raw material contains PC (polycarbonate), PP (polypropylene), PVC (polyvinyl chloride) and the like, and the wave absorption and radiation protection function powder material is prepared through mixing acetylene carbon powder and carbonyl iron powder. The preparation method comprises: mixing raw materials to obtain a mixed material, and carrying out extrusion molding, compression molding or injection molding to obtain the product. The wave absorption and radiation protection plastic has a function of strong electromagnetic wave and microwave absorption, wherein energy of the absorbed electromagnetic waves and the absorbed microwaves is converted into heat energy to be volatilized so as to reduce electromagnetic wave radiation.

Description

technical field [0001] The invention relates to an engineering plastic and a preparation method thereof, in particular to a plastic with the function of absorbing electromagnetic waves and a preparation method thereof. Background technique [0002] At present, with the rapid development of science and technology and the electronic industry, there are more and more applications of electronic equipment, and most of these electronic equipment (such as electronic computers, communication equipment, household appliances, medical equipment, etc.) are composed of large-scale and ultra-large-scale circuits. , are very vulnerable to external electromagnetic interference and cause malfunctions, image obstacles or sound obstacles, etc. At the same time, they also emit electromagnetic waves of different frequencies, causing interference and impact on nearby electronic equipment and nearby humans and other creatures. [0003] With the economic development and population growth of cities,...

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Problems solved by technology

The surface film conductive plastic is to obtain a very thin metal layer on the plastic surface by using methods such as pasting metal foil, metal melt spraying, electroplating or chemical plating, and coating conductive coatings on the opponent's products, so as to achieve the effect of shielding electromagnetic waves. Although the surface film type Conductive plastic has good electrical conductivity, but it does not absorb electromagnetic waves, but only reflects electromagnetic waves; it is made of electrically insulating plastics, fillers with excellent electrical conductivity, and other additives through mixing and granulation, and injection molding, extrusion molding Or the filled conductive plastic made by compression molding is easy to be brittle. Although it has a certain function of absorbing electromagnetic waves, due to the defects in the selection of the conductive filler formula, it cannot achieve the true effect of absorbing and preventing radiation; lamination Type conductive plastic is made of aluminum foil, metal mesh, paper, glass fiber cloth, asbestos and other flake substrates coated with resin, and then laminated, heated and pressed to make conductive products such as plates and pipes. It also has no electromagnetic wave absorption effect. Just the principle of reflecting electromagnetic waves;

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