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Patent Searching and Data


Title:
GRAPHENE COMPOSITE MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/000985
Kind Code:
A1
Abstract:
A graphene composite material and a preparation method therefor. By adding a pleated spherical graphene oxide and a catalyst to a precursor, the pleated spherical graphene oxide is highly dispersed and gradually dissociated into single-layer graphene oxide sheets while a polycondensation reaction occurs, some esterified molecules can react with the hydroxyl group and carboxyl group on the surface of the graphene oxide sheets to form chemical bonds, and at the same time, the graphene oxide is thermally reduced, and finally a composite material composed of PET and graphene sheets grafted with PET on the surface is obtained. The present invention avoids the stacking of graphene oxide in the esterification stage, greatly saving costs and increasing the production efficiency. The graphene obtained has a good dispersibility in a polymer matrix, and the formation of the covalent bond between the two materials effectively increases the properties of the system such as the mechanical properties, electrical conductivity properties, and the like. The involved preparation method is simple and effective, and thus can effectively save costs. The composite material obtained has superior properties, and can be used to prepare a high-performance dacron fabric.

Inventors:
GAO CHAO (CN)
CHEN CHEN (CN)
HAN YI (CN)
Application Number:
PCT/CN2018/077169
Publication Date:
January 03, 2019
Filing Date:
February 26, 2018
Export Citation:
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Assignee:
HANGZHOU GAOXI TECH CO LTD (CN)
International Classes:
C08G63/183; C08G63/78; C08G83/00; C08K3/04; C08K7/00; C08K7/18; C08L67/02; D01F6/96; D01F8/14; D01F8/18
Foreign References:
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CN201510688803A2015-10-21
CN201610757032A2016-08-30
Other References:
See also references of EP 3626758A4
Attorney, Agent or Firm:
HANGZHOU QIUSHI PATENT OFFICE CO., LTD. (CN)
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