Metal weaving type conductive silica gel sleeve and preparation method thereof

Abstract

The invention discloses a metal weaving type conductive silica gel sleeve and a preparation method thereof. The conductive silica gel sleeve comprises a core, a binding layer and an electromagnetic shielding layer which are sequentially arranged from inside to outside, the core is a pipe formed by extruding high-elasticity silicone rubber by an extrusion machine, the binding layer is a high-strength organic silicon binding layer coated on a surface of the core, the thickness of the binding layer is 0.05-0.1 millimeter, and the electromagnetic shielding layer is a metal weaving layer combined onto the surface of the core by the binding layer. By the metal weaving layer on the surface, the volume resistivity of the conductive silica gel sleeve is small, and the surface resistance is lower tobe 10 milliohms; with the core formed by extruding the high-elasticity silicone rubber, the conductive silica gel sleeve has very good rubber elasticity, and the permanent deformation rate after compression is lower to be 5%; and by combining the core and the metal weaving, the weight of the conductive silica gel sleeve is reduced by 20% compared with the same-volume metal shielding pipe.

Description

technical field [0001] The invention relates to the field of electromagnetic shielding composite materials, in particular to a metal braided conductive silicone sleeve. Background technique [0002] With the upgrading of communication technology, the requirements for electromagnetic shielding composite materials are becoming more and more stringent. There are also requirements for miniaturization and refinement of the structure of shielding materials. [0003] Metal woven mesh has very good electromagnetic shielding performance, its ductility can adapt to the complex weaving requirements of micro-size, and it has good environmental adaptability and long-term stable reliability in application. Silicone rubber is an excellent temperature-resistant material with a wide range of temperature resistance and can work normally in the temperature range of -70 ° C to 220 ° C. At the same time, it has a good match and outstanding performance with the development of modern electronic m...

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Problems solved by technology

[0006] The present invention aims at the problem that it is difficult to balance the electrical properties and elasticity of the silicone material, and provides a metal braided conductive silicone sleeve, which combines the metal braided network and the silicone tube, retains the advantages of both, and solves the above-mentioned background technology. proposed question

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