Production of helical polymer microfibers by electrospinning

摘要：

Curled polyvinylpyrrolidone (PVP) microfibers were prepared successfully with a modified electrospinning setup in which the commonly used collector, a piece of aluminum foil was replaced by a steel nail (a tip collector). PVP (45 wt ％) ethanol solution was used.with the increase of voltage, the proportion of the curled fibers increased and the uniformity of the curled fibers improved, also the repeat distance (wavelength) of the curled structures became smaller. In addition, some curled fibers developed into helical structures under relatively high voltages. Further analyses suggest that the mechanism for the curled PVP fibers could be ascribed to electric driven bending instability and/or mechanical jet buckling when hitting the hard collector surface.

关键词： electrospinning helical microfibers tip collector buckling

作者: Cheng-Chun Tang Yun-Ze Long Jun-Chi Chen

作者单位: College of Physics Science, Qingdao University, Qingdao, 266071, China

会议类型: 国际会议

会议名称: 11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)

会议地点: 青岛

会议语种:英文

页码: 250-254

在线出版日期: 2010-09-25（万方平台首次上网日期，不代表论文的发表时间）