Title:
SPINNING STOCK SOLUTION, AND HEAT-RESISTANT CREEP-RESISTANT FIBER AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/156215
Kind Code:
A1
Abstract:
The invention relates to a spinning stock solution, and a heat-resistant and creep-resistant fiber and a preparation method therefor. The spinning stock solution comprises polyethylene, a solvent and a photoinitiator. The amount of the photoinitiator is 0.2 wt% -10 wt% of the mass of polyethylene. The method comprises: performing gel spinning and multi-stage drafting on a spinning stock solution to obtain a polyethylene fiber; and then performing ultraviolet irradiation by means of an ultraviolet light source to obtain a heat-resistant and creep-resistant polyethylene fiber. The light intensity of the ultraviolet light source is 100mW/cm 2 - 5000mW/cm 2. The ultraviolet irradiation time is 10s - 600s. The heat-resistant and creep-resistant polyethylene fiber has a gel content of 20wt% - 100wt% and a crystallinity of 50wt% - 90wt%. Under a temperature of 70°C and a load of 300Mpa, the creep rate of the fiber is 10 -8s -1 - 10 -7s -1. Under a load of 15MPa and a temperature increase rate of 2°C/min, the breaking temperature of the fiber is 155°C - 245°C. The present method is simple and easy to implement, and has a wide range of applications.
Inventors:
HE YONG (CN)
GUO ZIXIAN (CN)
GUO JUNGU (CN)
GUO YADONG (CN)
WANG XINPENG (CN)
XIANG CHAOYANG (CN)
WANG YIMIN (CN)
NI JIANHUA (CN)
GUO ZIXIAN (CN)
GUO JUNGU (CN)
GUO YADONG (CN)
WANG XINPENG (CN)
XIANG CHAOYANG (CN)
WANG YIMIN (CN)
NI JIANHUA (CN)
Application Number:
PCT/CN2021/114899
Publication Date:
July 28, 2022
Filing Date:
August 27, 2021
Export Citation:
Assignee:
UNIV DONGHUA (CN)
JIANGSU LIU JIA TECH COMPANY LTD (CN)
JIANGSU LIU JIA TECH COMPANY LTD (CN)
International Classes:
D01F6/46; D01D5/04; D01F11/04
Domestic Patent References:
| WO2009043598A2 | 2009-04-09 |
Foreign References:
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Other References:
JOURNAL OF RADIATION RESEARCH AND RADIATION PROCESSING,, vol. 03, 1998, pages 7 - 12
Attorney, Agent or Firm:
TONGSHE INTELLECTUAL PROPERTY AGENCY (CN)
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