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1. (WO2018218930) HIGH ELASTIC DEFORMATION SENSING GRAPHENE COMPOSITE MATERIAL, PREPARATION METHOD THEREFOR, AND USE THEREOF

Pub. No.:    WO/2018/218930    International Application No.:    PCT/CN2017/115855
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Thu Dec 14 00:59:59 CET 2017
IPC: C08L 1/28
C08K 3/04
C08J 9/28
C08J 3/075
Applicants: SOUTH CHINA UNIVERSITY OF TECHNOLOGY
华南理工大学
Inventors: WANG, Hui
王慧
HUANG, Zhiming
黄智明
LIU, Xiaoyu
刘霄昱
Title: HIGH ELASTIC DEFORMATION SENSING GRAPHENE COMPOSITE MATERIAL, PREPARATION METHOD THEREFOR, AND USE THEREOF
Abstract:
The present invention falls within the technical field of deformation sensing materials, and discloses a high elastic deformation sensing graphene composite material, a preparation method therefor, and use thereof. The method comprises: (1) dispersing graphene oxide into water by means of ultrasonic waves to obtain a graphene oxide dispersion; (2) stirring a cellulose derivative and the graphene oxide dispersion, allowing the resultant to stand, and lyophilizing same so as to obtain a graphene oxide/cellulose aerogel; and (3) reducing the graphene oxide/cellulose aerogel by using a reducing agent, and then performing hot drying, so as to obtain the high elastic deformation sensing graphene composite material. The method of the present invention is simple, efficient, and environmentally friendly. The material of the present invention has better stable sensing properties, can be continuously loaded and unloaded more than 4,000 times under 70% strain condition, and restored to the original state within 1 second, having good elastic properties; and during deformation, the material has stable, reliable and regular resistance response. The material of the present invention is used in the field of deformation sensing.