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Title:
SURFACE-MODIFIED ARAMID FIBER AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/210529
Kind Code:
A1
Abstract:
The present invention relates to a surface-modified aramid fiber and a preparation method therefor; said method comprises the following steps: modifying an aramid fiber having amino groups and carboxyl groups on the surface with siloxane γ-glycidoxypropyltrimethoxysilane, so as to obtain a silicon methoxylated aramid fiber; reacting same with a polydopamine modified, turbostratic boron nitride coated cerium oxide, so as to obtain a surface-modified aramid fiber. The polydopamine modified, turbostratic boron nitride coated cerium oxide has high ultraviolet absorption, and has extremely low catalytic activity, avoiding the damage to a fiber structure by photocatalysis during radiation, being an effective, safe and highly-efficient ultraviolet absorber. The surface-modified aramid fiber provided in the present invention has an ultraviolet-resistant function, high surface activity, good thermal performance, and better mechanical performance, providing excellent overall performance, and having higher utilization value. The preparation method provided is simple and controllable, being suitable for scale production.

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Inventors:
GU AIJUAN (CN)
CAI HUA (CN)
LIANG GUOZHENG (CN)
YUAN LI (CN)
Application Number:
PCT/CN2018/086408
Publication Date:
November 07, 2019
Filing Date:
May 10, 2018
Export Citation:
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Assignee:
NANTONG TEXTILE & SILK INDUSTRIAL TECH RESEARCH INSTITUTE (CN)
UNIV SOOCHOW (CN)
International Classes:
D06M15/643; C01B13/14; C01B21/064; C09C3/08; D06M11/45; D06M11/80; D06M15/61; D06M101/36
Foreign References:
CN104404772A2015-03-11
CN104404772A2015-03-11
JP2001139925A2001-05-22
CN107216689A2017-09-29
CN103572583A2014-02-12
CN103572583A2014-02-12
JP2000086210A2000-03-28
CN107629461A2018-01-26
CN105887469A2016-08-24
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT AND TRADEMARK AGENCY, LTD (CN)
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