发明名称 |
GELATINIZED PRE-ORIENTED FILAMENTS AND PREPARATION METHOD THEREOF, AND ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE FIBERS AND PREPARATION METHOD THEREOF |
摘要 |
Disclosed are a method for preparing gelatinized pre-oriented filaments and the gelatinized pre-oriented filaments prepared by the method. The method comprises: feeding a spinning dope into a twin-screw extruder for blending and extruding the same to obtain a first spinning solution having a non-Newtonian index of 0.1-0.8 and a structural viscosity index of 10-50; feeding the first spinning solution into a spinning box, and drawing at a spinneret with a factor of 5-20 so as to obtain a second spinning solution; and flash cooling and curing the second spinning solution so as to obtain the gelatinized pre-oriented filaments. Also provided are a method for preparing ultra-high molecular weight polyethylene fibers by using the above method and the fibers prepared by this method. The gelatinized pre-oriented filaments prepared by the above method are used to prepare the ultra-high molecular weight polyethylene fibers with the number of broken filament ends per 10 km being not more than 2 stretched at 40-55 fold, and the prepared ultra-high molecular weight polyethylene fibers have a denier per filament of less than 2.2 D and excellent mechanical performance. |
申请公布号 |
US2014288256(A1) |
申请公布日期 |
2014.09.25 |
申请号 |
US201214350851 |
申请日期 |
2012.06.08 |
申请人 |
He Peng;Huang Xingliang;Lin Fengqi |
发明人 |
He Peng;Huang Xingliang;Lin Fengqi |
分类号 |
D01D5/098;C08F110/02;D01D5/088 |
主分类号 |
D01D5/098 |
代理机构 |
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代理人 |
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主权项 |
1. A method for preparing gelatinized pre-oriented filaments, comprising:
feeding a spinning dope into a twin-screw extruder for blending and extruding the same to obtain a first spinning solution having a non-Newtonian index of 0.1-0.8 and a structural viscosity index of 10-50; feeding the first spinning solution into a spinning box, and stretching at a spinneret with a factor of 5-20 so as to obtain a second spinning solution; and flash cooling and curing the second spinning solution so as to obtain the gelatinized pre-oriented filaments. |
地址 |
Beijing CN |