Title:
PREPARATION METHOD FOR LARGE CRYSTAL REGION HIGH CRYSTALLINITY CARBONACEOUS FIBER
Document Type and Number:
WIPO Patent Application WO/2023/155282
Kind Code:
A1
Abstract:
Disclosed is a preparation method for a large crystal region high-crystallinity carbonaceous fiber, which mainly utilizes a wet spinning means to perform liquid-phase composite assembly on graphene oxide and another polymer material, and a two-dimensional graphene oxide sheet achieves a "template orienting effect" on polymer molecules, causing the polymer molecules to be directionally crystallized on the two-dimensional graphene oxide sheet, thereby preparing a composite precursor with a high degree of orientation and crystallinity. A graphene sheet having undergone high temperature treatment and having a two-dimensional topological structure catalyzes pyrolyzed molecules to orient, using a single layer graphene sheet as a template, and generate a graphene-like carbon layer by a "graphitization-inducing effect", a stacking behavior of a graphene sheet layer is promoted, and a composite carbonaceous fiber having an optimal graphite crystal structure is prepared. The graphene fiber material prepared by the present method has characteristics of being low-cost and having high crystallinity and high performance, and can be applied to the field of light high-strength structural materials. The present invention is a high-crystallinity graphene fiber material possessing a two-dimensional inductive effect and a preparation method therefor.
Inventors:
GAO CHAO (CN)
MING XIN (CN)
XU ZHEN (CN)
LIU YINGJUN (CN)
MING XIN (CN)
XU ZHEN (CN)
LIU YINGJUN (CN)
Application Number:
PCT/CN2022/085936
Publication Date:
August 24, 2023
Filing Date:
April 08, 2022
Export Citation:
Assignee:
UNIV ZHEJIANG (CN)
International Classes:
D01F9/22; C01B32/184; D01F1/09; D01F1/10; D01F9/145; D01F9/17; D01F9/24
Domestic Patent References:
| WO2015014124A1 | 2015-02-05 |
Foreign References:
| CN112522796A | 2021-03-19 | |||
| US20180209075A1 | 2018-07-26 | |||
| US20200181808A1 | 2020-06-11 | |||
| CN103741264A | 2014-04-23 | |||
| CN102926020A | 2013-02-13 |
Attorney, Agent or Firm:
HANGZHOU HUACHEN JOINT INTELLECTUAL PROPERTY AGENCY (SPECIAL GENERAL PARTNERSHIP) (CN)
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