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2. 发明申请

US20140288256A1 GELATINIZED PRE-ORIENTED FILAMENTS AND PREPARATION METHOD THEREOF, AND ULTRA-HIGH MOLECULAR WEIGHT POLYETHYLENE FIBERS AND PREPARATION METHOD THEREOF 有权
标题翻译：凝胶化的预先指定的纤维及其制备方法和超高分子量聚乙烯纤维及其制备方法
公开(公告)号：US20140288256A1
公开(公告)日：2014-09-25
申请号：US14350851
申请日：2012-06-08
申请人： Peng He , Xingliang Huang , Fengqi Lin
发明人： Peng He , Xingliang Huang , Fengqi Lin
IPC分类号： D01D5/098 , C08F110/02 , D01D5/088
CPC分类号： D01D5/098 , C08F110/02 , D01D1/02 , D01D5/04 , D01D5/06 , D01D5/088 , D01D5/12 , D01F6/04 , D01F6/46 , D02J1/22
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.
摘要翻译：公开了一种通过该方法制备糊化的预取向长丝和糊化的预取向长丝的方法。该方法包括：将纺丝原液进料到双螺杆挤出机中进行共混和挤出，得到非牛顿指数为0.1-0.8，结构粘度指数为10-50的第一纺丝溶液; 将第一纺丝溶液进料到纺丝箱中，在喷丝头上拉5-20倍，得到第二纺丝溶液; 并闪蒸冷却并固化第二纺丝溶液，以获得糊化的预取向长丝。还提供了通过使用上述方法制备超高分子量聚乙烯纤维的方法和通过该方法制备的纤维。通过上述方法制备的糊化预取向长丝用于制备超高分子量聚乙烯纤维，每10km断丝长度不超过2倍，拉伸40-55倍，高分子量聚乙烯纤维每旦长丝的旦尼尔小于2.2D，机械性能优异。

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