张力对聚丙烯腈纤维干燥致密化过程的影响  

Effect of Tension on the Drying and Collapsing Process of Polyacrylonitrile Fibers

作　　者：李磊 沈志刚[1,2] 王建宁 邓明妤[1,2] 张晓 LI Lei;SHEN Zhi-gang;WANG Jian-ning;DENG Ming-yu;ZHANG Xiao(SINOPEC(Shanghai)Research Institute of Petrochemical Technology Co.,Ltd.,Shanghai 201208,China;SINOPEC Key Laboratory of Carbon Fiber and its Composites,Shanghai 201208,China)

机构地区：[1]中石化(上海)石油化工研究院有限公司,上海201208 [2]中国石化碳纤维及其复合材料重点实验室,上海201208

出　　处：《合成纤维》2023年第6期37-43,共7页Synthetic Fiber in China

摘　　要：通过在多个温度和停留时间的干燥致密化过程中负载不同张力,定量研究了张力对聚丙烯腈纤维干燥致密化过程的影响,采用X射线衍射、力学性能测试和扫描电子显微镜等方法分析了张力对聚丙烯腈纤维结构与性能的影响。结果表明,干燥致密化过程中的张力可抑制纤维尺寸收缩,使纤维微观结构发生复杂变化,可影响纤维的力学性能,并抑制纤维表面“沟槽”融并。The effect of tension on the drying and collapsing process of polyacrylonitrile fibers under various temperatures and residence time by application different tension was quantitative studied,and the effect of tension on the structure and properties of polyacrylonitrile fibers was analyzed by X-ray diffraction,mechanical measurements and scanning electron microscope.The results reveal that the tension restrains the fiber shrinkage,causes complex changes of the microstructure and mechanical properties of the fiber,and inhibits the groove melting of the fiber surface.

关 键 词：聚丙烯腈 张力 干燥致密化 微观结构 力学性能 

分 类 号：TQ342.3[化学工程—化纤工业]