Graphite heat conduction and heat dissipation adhesive tape

Abstract

The invention discloses a graphite heat conduction and heat dissipation adhesive tape, which comprises a release film layer, a first high-temperature-resistant adhesive layer, a graphite layer, a metal layer, a second high-temperature-resistant adhesive layer and an infrared radiation heat dissipation coating, and is obtained by the following process method: (1) coating a release film with a high-temperature-resistant adhesive layer, spraying the release film with a layer of a graphite sheet, and then coating the release film with a metal layer; (2) compacting the material obtained in the step(1) by using a double-roller method; (3) coating the other surface of the compacted metal layer with a second high-temperature-resistant adhesive layer, and then spraying a layer of an infrared radiation heat dissipation coating; and (4) compacting the material obtained in the step (3) by using a double-roller method, so that the thickness of the compacted infrared radiation heat dissipation coating is 7-9 [mu]m. According to the invention, three heat conduction and heat dissipation materials are used, so that the heat dissipation effect is greatly improved; and through the compaction, the contact among the materials in each layer is tight, the gaps among the materials are reduced, and the heat conduction and heat dissipation performance of the materials is effectively improved.

Description

technical field [0001] The invention relates to the technical field of adhesive tapes, in particular to a graphite heat-conducting and heat-dissipating adhesive tape. Background technique [0002] Adhesive tapes are widely used in many fields in China, such as industry, transportation, electronic communication, security, commerce, medical care, personal care, electronics, electrical, construction, culture, education and consumption. There are many types of tapes, including single-sided industrial tapes and double-sided industrial tapes. There are also many bonding materials for industrial tapes, such as acrylic glue and silica gel. However, most industrial tapes have single functions, do not have optical properties, and are not anti-static. , does not conduct heat and dissipate heat, is not heat-resistant and durable, and cannot be used in some specific occasions. [0003] With the rapid development of modern microelectronics technology, electronic equipment has become incr...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, polyimide films are mostly used for flexible circuit boards. Although polyimide films are sintered to obtain graphite heat sinks, which can be pasted on heat sources, they are limited by the product quality and reliability of polyimide films. The performance is uneven, which affects the heat dissipation performance of the heat dissipation double-sided film. The heat dissipation is uneven, and the tape is prone to local overheating, which improves the heat dissipation performance of the product. The unstable performance and poor reliability performance are not conducive to product quality control and affect product competitiveness.