Determination of phase separation trajectory in the wet spinning process of PAN fiber

摘要：

The phase separation trajectory of PAN-DMSO-H2O ternary phase diagram was determined with dynamic component analysis method and the phase separation mechanisms in the wet spinning process of PAN fiber were demonstrated. As the results suggested, with given spinning conditions, during the PAN fiber forming process the solid concentration in the system increased and the phase separation trajectory was above the critical point. The phase separation trajectory was a curve with an inflexion, which indicated the phase separation could be divided into two stages. From the “starting point, the compositions of this system went firstly into miscibility region, then past through the metastable region, and ultimately entered into unstable region. Correspondingly, the phase separation kinetic ways changed from by nucleation and growth of a polymer-poor phase to by spinodal decomposition.

作者: ZENG Xiaomei CHEN Jiangmin ZHAO Jiongxin PAN Ding

作者单位: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University,S College of Biological and Chemical Engineering, Jiaxing University, Jiaxing 314001, P.R.China 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: 96-98

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）