| 超大长径比双螺杆挤出机制备聚丙烯腈初生纤维 |
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| 引用本文： | 王建,胡晓峰,石珊,刘方可,邵明旺,许嫚嫚.超大长径比双螺杆挤出机制备聚丙烯腈初生纤维[J].塑料工业,2021(2):79-83,111. |
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| 作者姓名： | 王建 胡晓峰 石珊 刘方可 邵明旺 许嫚嫚 |
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| 作者单位： | 北京化工大学机电工程学院;北京理工大学化学与化工学院;国家管网集团北方管道有限责任公司 |
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| 摘 要： | 采用自主研发的超大长径比(136)双螺杆挤出机实现了PAN初生纤维的纺丝制备,研究了PAN粉料质量分数(16％、20％、24％)、双螺杆挤出机机筒温度(50、60、70 ℃)、循环挤出次数(0、1、2)对PAN初生纤维力学性能及表面形貌的影响.结果表明,PAN初生纤维的拉伸强度随质量分数、机筒温度和循环挤出次数的增加而...
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| 关 键 词： | 聚丙烯腈 初生纤维 长径比 双螺杆挤出机 力学性能 |
Preparation of Polyacrylonitrile Nascent Fiber by Twin Screw Extruder with Super Large Length to Diameter Ratio |
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| Affiliation: | (School of Mechatronic Engineering,Beijing University of Chemical Technology,Beijing 100029,China;School of Chemistry and Chemical Engineering,Beijing Institute of Technology,Beijing 100081,China;National Petroleum and Natural Gas Pipe Network Group Co.,Ltd.,Langfang 065000,China) |
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| Abstract: | The spinning preparation of polyacrylonitrile(PAN)nascent fiber was realized by using the self-developed twin screw extruder with a super large length to diameter ratio(136).The effects of mass fraction of PAN powder(16%,20%,24%),barrel temperature(50,60,70 ℃)and cyclic extrusion times(0,1,2)on mechanical properties and surface topography of PAN nascent fibers were investigated.The results show that the tensile strength of PAN nascent fibers could increase with the increasing of mass fraction,barrel temperature and cyclic extrusion times.The elongation at break of PAN nascent fibers could decrease with the increasing of mass fraction and cyclic extrusion times,and increase with the increasing of barrel temperature.With the increase of cyclic extrusion times,the surface quality of fibers becomes better and surface defects decrease.The research results provide a foundation for the preparation of PAN nascent fibers with better performance by using the twin screw extruder with super large length to diameter ratio. |
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| Keywords: | Polyacrylonitrile Nascent Fiber Length to Diameter Ratio Twin Screw Extruder Mechanical Property |
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