Effects of Formation Conditions on Morphology and Properties of Polyacrylonitrile Fibers in Dry-jet Wet Spinning Process

摘要：

Polyacrylonitrile fibers were prepared by dry-jet wet spinning process. The effects of formation conditions, including coagulation medium, coagulation conditions, and draw conditions, were investigated in detail. Using mixture of water and DMSO as the coagulation medium, PAN fibers with compact microstructure can be obtained by adopting low coagulation temperature as well as gradient coagulation process. Using ethanol instead of water as the nonsolvent for the coagulation medium, PAN fibers with compact microstructure can be prepared at a lower DMSO concentration of the coagulation medium. Also, the cross-section shape of the fiber varied with the composition of the coagulation medium. Finally, mechanical properties of the fibers could be enhanced greatly via additional drawing in air before the commonly-used two stage drawing treatment.

关键词： polyacrylonitrile fibers ethanol coagulation conditions

作者: ZHANG Jian ZHANG You-wei ZHAO Jiong-xin

作者单位: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Institute of Chemical Fibers, College of Material Science and Engineering, Donghua University, Shanghai 201620, China

会议类型: 国际会议

会议名称: 2010 International Forum on Biomedical Textile Materials(2010国际纺织生物医用论坛)

会议地点: 上海

会议语种:英文

页码: 343-346

在线出版日期: 2010-05-28（万方平台首次上网日期，不代表论文的发表时间）