Title:
GRAPHITE ADHESIVE TAPE AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/155846
Kind Code:
A1
Abstract:
The present invention provides a graphite adhesive tape, comprising: a graphite layer, the upper surface and/or lower surface of the graphite layer being provided with a plurality of holes; and polyimide covering the surfaces of the graphite layer and permeating to the interior of the graphite layer. A preparation method for the graphite adhesive tape comprises: making holes on an upper surface and/or a lower surface of a graphite layer; then coating the surfaces of the graphite layer with a ployamic acid solution film, and resting same to obtain a semi-finished product; and performing imidization thermal treatment on the semi-finished product to obtain a graphite adhesive tape. The graphite adhesive tape of the present application has great mechanical performance and peel strength, and excellent heat conduction performance, wherein the tensile strength is greater than 200 Mpa, the peel strength is 1.5-3.0 kgf/cm, and the heat conduction coefficient is above 151 w/(m.k). The method features convenient processing and high production efficiency.
Inventors:
ZHONG FAPING (CN)
XIAO JINCHUN (CN)
DING SHENGFANG (CN)
XIAO JINCHUN (CN)
DING SHENGFANG (CN)
Application Number:
PCT/CN2019/123308
Publication Date:
August 06, 2020
Filing Date:
December 05, 2019
Export Citation:
Assignee:
CHANGDE LYRUN MAT CO LTD (CN)
International Classes:
C09J7/20; C09J179/08
Foreign References:
| CN208308773U | 2019-01-01 | |||
| CN109554130A | 2019-04-02 | |||
| CN103254830A | 2013-08-21 | |||
| CN103059761A | 2013-04-24 | |||
| CN106520003A | 2017-03-22 | |||
| CN104302155A | 2015-01-21 | |||
| CN106099085A | 2016-11-09 | |||
| CN107635767A | 2018-01-26 |
Attorney, Agent or Firm:
BEIJING LANTAI PARTNERS (CN)
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