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Thermally conductive adhesive tape

An adhesive tape, electrical and thermal conductivity technology, applied in the direction of adhesives, film/sheet adhesives, etc., can solve the problems of poor high temperature resistance of PE film, poor strength of PE film, affecting thermal conductivity, etc., and achieve good insulation. Effect

Inactive Publication Date: 2014-09-10
安徽格林开思茂光电科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, PE (polyethylene) film is used as the base material for thermally conductive adhesive tapes. The strength of PE film is poor. To increase the strength, the thickness of the film must be increased, which affects thermal conductivity, and the high temperature resistance of PE film is poor.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0014] Such as figure 1 A heat-conducting adhesive tape shown includes a PET transparent film layer 1, and a graphite coating layer 2 is provided on one side of the PET (polyethylene terephthalate) transparent film layer 1, and the graphite coating layer 2 is black. The thermally conductive graphite layer is called black thermally conductive film. The surface of the graphite coating layer 2 is coated with an acrylic pressure-sensitive adhesive layer 3 , and the surface of the acrylic pressure-sensitive adhesive layer 3 is covered with a release film layer 4 . The graphite coating layer 2 is an electrically and thermally conductive layer. The release film layer 4 is a PET release film layer.

[0015] The tape is designed to be ultra-thin without affecting the thermal conductivity of the graphite layer. The graphite film layer can be designed with hemming when die-cutting, so that the graphite film layer has good insulation. It has good insulation for graphite film, mobile p...

Embodiment 2

[0017] Such as figure 2 A heat-conducting adhesive tape shown includes a PET transparent film layer 1, and a graphite coating layer 2 is provided on one side of the PET (polyethylene terephthalate) transparent film layer 1, and the graphite coating layer 2 is black. The thermally conductive graphite layer is called black thermally conductive film. The surface of the graphite coating layer 2 is coated with an acrylic pressure-sensitive adhesive layer 3 , and the surface of the acrylic pressure-sensitive adhesive layer 3 is covered with a release film layer 4 . The other side of the PET transparent film layer is also provided with another graphite film layer, and the surface of the graphite film layer is coated with another layer of acrylic pressure-sensitive adhesive layer, and the surface of the acrylic pressure-sensitive adhesive layer is pasted There is another layer of release film. The graphite coating layer 2 is an electrically and thermally conductive layer. The rele...

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Abstract

The invention discloses a thermally conductive adhesive tape. The adhesive tape comprises a transparent PET (Polyethylene Terephthalate) film layer, wherein a graphite coating layer is formed on a side surface of the transparent PET film layer, the surface of the graphite coating layer is coated with an acrylic pressure-sensitive adhesive bonding layer, and a release film layer is adhered to the surface of the acrylic pressure-sensitive adhesive bonding layer. Due to the adoption of the structure, the thermally conductive adhesive tape disclosed by the invention has the following advantages that: 1, since adhesive tape is designed to be ultra-thin, the thermal conductivity of the graphite layer are not affected; 2, when the graphite layer is subjected to die cutting, the edge-packaged design can be adopted and thus the graphite film layer has good insulativity; and 3, the adhesive tape has good insulativity for the to-be-adhered objects, such as graphite film, mobile phone back shell, mobile phone motherboard, and stainless steel fins.

Description

technical field [0001] The invention relates to a thermally conductive adhesive tape. Background technique [0002] At present, PE (polyethylene) film is used as the base material for thermally conductive adhesive tapes. The strength of PE film is poor. To increase the strength, the thickness of the film must be increased, which affects thermal conductivity, and the high temperature resistance of PE film is poor. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a thermally conductive adhesive tape with excellent thermal conductivity and electrical insulation for the deficiencies of the prior art. [0004] In order to solve the above technical problems, the technical solution of the present invention is: a thermally conductive adhesive tape, comprising a PET transparent film layer, one side surface of the PET transparent film layer is provided with a graphite coating layer, and the graphite coating layer is The su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02
Inventor 钟永旺杨谷湧陈亿扬王万明孙伟
Owner 安徽格林开思茂光电科技股份有限公司
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