Title:
POLYOLEFIN-BASED GRAPHITE-ORIENTED THERMAL INTERFACE MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/120691
Kind Code:
A1
Abstract:
Disclosed are a polyolefin-based graphite-oriented thermal interface material and a preparation method therefor. The polyolefin-based graphite-oriented thermal interface material comprises a polyolefin base, modified graphite powder, and a filling type heat conduction filler. The filling type heat conduction filler is a micron-sized or nanosized particle type, whisker type, fiber type, or nanowire type filler. The modified graphite powder is coupling agent-modified graphite powder. A preparation method for the coupling agent-modified graphite powder comprises the following steps: performing a plasma etching pretreatment on the graphite powder; performing hydroxylation processing on the pretreated graphite powder; and fully hydrolyzing a coupling agent in a solvent, and adding hydroxylated graphite powder to the fully hydrolyzed coupling agent. The polyolefin-based graphite-oriented thermal interface material of the present invention is stable in performance, has high orientation, high compactness, and high thermal conductivity. At the same time, the polyolefin-based graphite-oriented thermal interface material is ensured to also have good flexibility and resilience, so as to ensure that a heat source of an electronic device and a heat-dissipation device are filled at a high coverage rate, thereby effectively realizing efficient heat dissipation of the electronic device.
Inventors:
ZENG XIAOLIANG (CN)
ZHANG CHENXU (CN)
YE ZHENQIANG (CN)
REN LINLIN (CN)
ZHANG YUEXING (CN)
XU JIANBIN (CN)
SUN RONG (CN)
ZHANG CHENXU (CN)
YE ZHENQIANG (CN)
REN LINLIN (CN)
ZHANG YUEXING (CN)
XU JIANBIN (CN)
SUN RONG (CN)
Application Number:
PCT/CN2020/135169
Publication Date:
June 16, 2022
Filing Date:
December 10, 2020
Export Citation:
Assignee:
SHENZHEN INST OF ADV TECH CAS (CN)
International Classes:
C08K9/00; C08K3/04; C08K3/08; C08K7/00; C08K9/02; C08K9/06; C08L47/00; C08L51/00; C09K5/14
Domestic Patent References:
| WO2015071658A1 | 2015-05-21 |
Foreign References:
| CN107674375A | 2018-02-09 | |||
| CN107686597A | 2018-02-13 | |||
| CN106810877A | 2017-06-09 | |||
| US20100128439A1 | 2010-05-27 |
Attorney, Agent or Firm:
BEIJING CHENGHUI LAW FIRM (CN)
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