Title:
PREPARATION METHOD FOR PARA-ARAMID FIBER
Document Type and Number:
WIPO Patent Application WO/2017/050220
Kind Code:
A1
Abstract:
The present invention relates to a preparation method for para-aramid fiber and belongs to the technical field of polymer new materials. Para-aramid fiber prepared by the present invention is tens to hundreds of nanometer in diameter and hundreds of nanometer to tens of micrometer in length. The preparation method comprises: adding a certain amount of surfactant during a PPTA low-temperature polymerization process, controlling aggregation of PPTA molecules along with increment of a PPTA molecular chain, and then preparing the para-aramid fiber having uniform size and adjustable diameter in a scale between nanometer and sub micrometer under an assisting function of other means (for example: a precipitant and high-speed shear dispersion). The present invention is short in production process and requires a simple device, and batch stable production can be realized, thereby meeting the requirements on scale production of the para-aramid fiber, having a wide application prospect, and being able to be used for preparing lithium ion battery separators and high-performance composite materials.
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Inventors:
TUO XINLIN (CN)
LI JINGLONG (CN)
YAN HONGCHEN (CN)
LI JINGLONG (CN)
YAN HONGCHEN (CN)
Application Number:
PCT/CN2016/099489
Publication Date:
March 30, 2017
Filing Date:
September 20, 2016
Export Citation:
Assignee:
UNIV TSINGHUA (CN)
International Classes:
C08G69/28; C08G69/32; D01F6/60
Foreign References:
| CN105153413A | 2015-12-16 | |||
| CN104403119A | 2015-03-11 | |||
| US20100234496A1 | 2010-09-16 | |||
| CN1693548A | 2005-11-09 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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