GRAPHENE HEATING INK, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF

WIPO Patent Application WO/2022/120565

A1

Disclosed in the present invention are a graphene heating ink, a preparation method therefor, and an application thereof. The graphene heating ink comprises a resin matrix, a conductive filler, an auxiliary agent, and a solvent. The conductive filler comprises graphene; the resin matrix consists of an organic polymer and polysilazane according to a mass ratio of 1:0.08-1.5. The graphene heating ink further comprises a crosslinking agent. The preparation method comprises: using graphene powder; using a polysilazane solution; first stirring and dispersing the graphene powder and the polysilazane solution to fully mix same; and after uniform mixing, adding the remaining raw materials under stirring to make the graphene heating ink. An electric heating film prepared from the ink is provided. By means of the electric heating film, excellent electrical conductivity is ensured at a lower temperature, resistance is greatly improved at a high temperature, and self-limiting of the temperature is realized; moreover, there is little material resistance change when the temperature restores to a normal temperature, and the reversibility is good, thereby improving the recycling performance and safety of the electric heating film.

LIN HONGZHEN (CN)
CHENG SHUANG (CN)
WANG JIAN (CN)
LI LINGE (CN)
LI FUJIN (CN)

PCT/CN2020/134513

June 16, 2022

December 08, 2020

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SUZHOU CSTAR MATERIAL TECH CO LTD (CN)

C09D11/03; C09D11/52; C09D11/102; C09D11/107; H05B3/10; H05B3/14; H05B3/34

CN111925686A	2020-11-13
US20080142494A1	2008-06-19
CN110511609A	2019-11-29
CN111363413A	2020-07-03
CN107446408A	2017-12-08
CN111748243A	2020-10-09

SUZHOU CREATOR PATENT & TRADEMARK AGENCY, LTD. (CN)

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