Silica gel glass fabric hot-pressing buffer material and preparation method thereof

Abstract

The invention belongs to the technical field of hot-pressing buffer materials, and particularly relates to a silica gel glass fiber cloth hot-pressing buffer material and a preparation method thereof.The silica gel glass fiber cloth hot-pressing buffer material comprises a liquid silica gel layer, a heat conduction silica gel layer and glass fiber cloth with the two faces coated with silane coupling agents, the heat-conductive silica gel layer is calendered and compounded on the other surface; the liquid silica gel layer is a mixture of liquid silica gel, a heat-resisting agent and heat conduction powder; the heat-conductive silica gel layer is obtained by filling solid silica gel with heat-conductive powder; the buffer material prepared by the invention is a unique synthetic elastomer prepared from a silica gel polymer and high-strength glass fibers, perfectly combines the thermal performance and elasticity of silica gel molecules and the unique toughness of a fiber material, and has extremely high tear resistance and very high compression resistance and resilience; The excellent insulativity, high-speed heat transfer performance and high-temperature resistance of the cable can be embedded in extremely harsh application occasions.

Description

technical field [0001] The invention relates to the technical field of hot-pressed buffer materials, in particular to a silica gel glass fiber cloth hot-pressed buffer material and a preparation method thereof. Background technique [0002] At present, the buffer materials mainly used by module panel factories in the bonding process include pure silica gel materials, silica gel and polyimide film composite materials, and Teflon and silica gel composite materials. [0003] Although the pure silica gel hot-pressed buffer material has a high coefficient of friction, it is not pressure-resistant, and the frequency of changing wires during use is high, resulting in high production costs; [0004] Polyimide and silicone composite materials and Teflon composite materials can solve the problem of low pressing times, but because of their common characteristics - high price and extremely low coefficient of friction on the surface, it is easy to slide during the bonding process. The p...

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Problems solved by technology

[0003] Although the pure silica gel hot-pressed buffer material has a high coefficient of friction, it is not pressure-resistant, and the frequency of changing wires during use is high, resulting in high production costs;

[0004] Polyimide and silicone composite materials and Teflon composite materials can solve the problem of low pressing times, but because of their common characteristics - high price and extremely low coefficient of friction on the surface, it is easy to slide during the bonding process. The product is defective due to lamination offset. These two materials are not suitable for high temperature, high pressure, and high frequency production occasions. In order to solve the above problems, this application proposes a silica gel glass fiber cloth hot-pressed buffer material and its preparation method

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