Conductive foam double-sided adhesive tape

Abstract

A conductive foam double-sided adhesive tape comprises a foaming base material, and a first adhesive layer and a second adhesive layer are arranged on the upper surface and the lower surface of the foaming base material respectively; a plurality of first through holes are evenly formed in the surface of the foaming base material, the upper surface and the lower surface of the foaming base materialat the two ends of each first through hole are each provided with a boss, and the first through holes are communicated with the bosses; a conductive material layer is arranged on the surfaces of thebosses and in the first through holes in a connected manner; and second through holes matched with the bosses in shape and position are formed in the first adhesive layer and the second adhesive layer, the bosses are arranged in the second through holes, and the heights of the bosses are slightly larger than the thickness of the first adhesive layer or the thickness of the second adhesive layer. The double-sided adhesive tape integrates the functions of electric conduction, buffering, shock absorption and the like, various adhesive materials can be flexibly selected, the structure is simple, die cutting can be conducted at will, and the double-sided adhesive tape is particularly suitable for special occasions with double-sided adhesive fixing or sealing requirements.

Description

technical field [0001] The invention belongs to the technical field of adhesive tapes for electronic applications, and in particular relates to a conductive foam double-sided adhesive tape. Background technique [0002] With the development of science and technology, the integration and precision of electronic devices are getting higher and higher, and the requirements for electrostatic discharge and electromagnetic shielding of electronic devices are gradually increasing. Therefore, higher requirements are put forward for the quality and functionality of conductive foam tapes. requirements. [0003] Conductive foam tape is conductive foam with an adhesive layer on the surface; conductive foam tape refers to conductive materials such as wrapping and covering conductive cloth on the foam substrate. After compound processing, it has good surface conductivity. It can play the role of cushioning and shock absorption, electromagnetic shielding, anti-static and so on. Foam subst...

AI Technical Summary

Problems solved by technology

[0005] At present, some conductive foam tape materials on the market have the following problems: (1) Most of the domestic all-round conductive foam tapes can only be pasted with conductive pressure-sensitive adhesives, or conductive particles are added to hot-melt adhesives, etc., which affect Adhesiveness also has a certain influence on the resilience performance of foam, and the overall performance of conductive pressure-sensitive adhesives such as cold resistance and durability is poor; Filament problems affect product yield and die-cutting efficiency; for foams coated with graphite layers, due to the high compressibility of the foams, the graphite layer is prone to cracking or even peeling off when the foam is greatly compressed during slitting; (3) When multiple die-cuts are made, the electrical and thermal conductivity of the foam tape after slitting may be greatly reduced or even lost

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