Investigation on the gradient solidification processing of PAN precursor during dry-jet-wet spinning

摘要：

Based on the thermodynamic phase diagram, coagulation formation for PAN-based carbon fiber precursor in spinning process was investigated in the paper. In order that the phase separation can take place at the inter-region between the binodal curve and spinodal curve, PAN precursor with various microstructures was prepared by gradient solidification processing in dry-jet-wet spinning, which can be acquired through corresponding thermodynamic path in phase diagram. The morphology and mechanical properties of PAN precursor were examined with scanning electron microscope (SEM) and mechanical measurement, respectively. Meanwhile, the influence of fiber-forming conditions on the microstructure of PAN precursor was discussed. Judging from our investigation, it can be concluded that forming path of gradient solidification in ternary phase diagram was optimal thermodynamic path.

作者: LIANG Yile DONG Ruijiao ZHANG Jian ZHAO Jiongxin ZHANG Youwei PAN Ding

作者单位: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University,S State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University,

会议类型: 国际会议

会议名称: 2009 International Conference on Advanced Fibers and Polymer Materials(2009年先进纤维与聚合物材料国际学术会议)

会议地点: 上海

会议语种:英文

页码: 410-413

在线出版日期: 2009-10-21（万方平台首次上网日期，不代表论文的发表时间）