A kind of anti-electromagnetic radiation coating and preparation method thereof

An anti-electromagnetic radiation and coating technology, which is applied in the fields of materials and chemicals, can solve problems such as complex process, high specificity of absorbent, and insufficient absorption effect, and achieve the effects of improving electromagnetic environment, low VOC content, and eliminating electromagnetic pollution

Active Publication Date: 2017-10-13
德阳森华涂料化工有限公司
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Problems solved by technology

However, the process of this scheme is complicated, the absorbent used is relatively large, and its absorption effect is not good enough

Method used

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  • A kind of anti-electromagnetic radiation coating and preparation method thereof

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Embodiment 2

[0037] 1. The preparation process of the anti-electromagnetic radiation coating of the present invention is:

[0038] (1) Add 20~25 parts of hyperbranched epoxy resin into the container, use an electric mixer to disperse at a certain speed for a period of time, and then successively 5~8 parts of urea-formaldehyde resin, 1~1.5 parts of film-forming aid, 0.5~1 part of Focus accelerator, 0.1~0.2 part of surfactant, 0.1~0.2 part of rheological additive, 0.05~0.1 part of coupling agent. Each additive is added slowly, and the next additive is added after stirring for a period of time. Formulated as a base paint, as a matrix material for absorbents.

[0039] (2) Take 25~35 parts of the base paint prepared in Item 1, use electric stirring to disperse for a period of time at a suitable speed, slowly add 65~75 parts of electromagnetic wave absorber, and slowly increase the speed, and add a small amount of dilution depending on the situation agent. After dispersing and stirring for 0....

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Abstract

The invention discloses an electromagnetic radiation-resisting coating which comprises a part A, a part B and a part C, wherein the part A comprises the following components by weight percent: 20-30% of hyperbranched epoxy resin, 2-3% of urea resin, 1-1.5% of coalescing agent, 0.5-1% of adhesion promoter, 0.1-0.2% of surface active agent, 0.1-0.2% of flowing deformation auxiliaries, 0.05-0.1% of coupling reagents and 60-70% of electromagnetic wave absorbents; the part B comprises the following component: special epoxy hardener; the special epoxy hardener comprises the following components by weight percent: 50% of polyimide, 35% of xylene and 15% of n-butyl alcohol; the part C comprises epoxy diluent; the quantity ratio of the part A to part B to part C is (9-19):1:(2-4). The electromagnetic radiation-resisting coating prepared according to the invention has various excellent physical and chemical properties of the coating and also has an electromagnetic radiation-resisting function.

Description

technical field [0001] The invention relates to the technical fields of chemical industry and materials, in particular to an anti-electromagnetic radiation coating. Background technique [0002] With the improvement of people's living standards, the continuous development of communication technology is accompanied by the continuous expansion of communication networks. Communication base stations can be seen everywhere, and most of them are built in densely populated areas. The influence of electromagnetic radiation generated by communication base stations on the surrounding environment and human body has attracted more and more attention. Electromagnetic radiation has become the fourth largest source of pollution after air pollution, water pollution and noise pollution. The electromagnetic interference (EMI) and electromagnetic compatibility (EMC) problems caused by electromagnetic waves will not only interfere with electronic and electrical equipment, but also pose a serio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D5/32C09D7/12
Inventor 钟华军
Owner 德阳森华涂料化工有限公司
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