凝固条件对干湿纺聚丙烯腈纤维微结构和性能的影响  

Effects of Coagulation Conditions on Micro-structure and Properties of Polyacrylonitrile Fibers during Dry-jet Wet Spinning

作　　者：张舰[1] 张德刚[1] 张幼维[1] 赵炯心[1] 

机构地区：[1]东华大学纤维材料改性国家重点实验室,上海201620

出　　处：《材料导报》2010年第22期29-31,49,共4页Materials Reports

基　　金：上海市启明星计划(07QA14001);国家"973"碳纤维重大专项(2006CB605303)

摘　　要：采用干湿法纺丝工艺制备PAN纤维,考察了凝固条件对纤维微结构和性能的影响。结果表明,降低凝固浴温度、采用梯级凝固工艺,可以减缓双扩散过程;采用凝固能力较弱的乙醇作为非溶剂,可以减缓凝固成形过程。这2种改变均有利于获得皮芯差异小、性能优异的PAN纤维。Effects of coagulation conditions on micro-structure and properties of polyacrylonitrile（PAN） fibers during dry-jet wet spinning are studied. The results show that reducing coagulation temperature, adopting gradient co- agulation process, and using ethanol as the nonsolvent for the coagulation medium, all benefit to the formation of high performance PAN fibers with minor structural difference between the fiber skin and core.

关 键 词：聚丙烯腈纤维 凝固条件 微结构 性能 

分 类 号：TQ342.31[化学工程—化纤工业]