高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

静电纺丝法制备聚甲醛纳米纤维

陆建巍, 任祥忠, 陈艺章, 董穆, 张展鹏, 于建, 郭朝霞   

  1. 清华大学化工系高分子科学与工程研究所, 材料科学与工程研究院, 北京 100084
  • 收稿日期:2008-04-28 修回日期:1900-01-01 出版日期:2008-09-10 发布日期:2008-09-10
  • 通讯作者: 郭朝霞

Polyoxymethylene Nanofibers by Electrospinning

LU Jian-Wei, REN Xiang-Zhong, CHEN Yi-Zhang, DONG Mu, ZHANG Zhan-Peng, YU Jian, GUO Zhao-Xia*   

  1. Institute of Polymer Science and Engineering, Department of Chemical Engineering, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
  • Received:2008-04-28 Revised:1900-01-01 Online:2008-09-10 Published:2008-09-10
  • Contact: GUO Zhao-Xia

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被引次数

22

摘要： 以六氟异丙醇为溶剂, 用静电纺丝的方法制备了聚甲醛纳米纤维. 利用场发射扫描电镜对纤维形貌进行了表征, 纤维的直径为0.3~1.2 μm. 讨论了溶液浓度、接收距离、电压和温度等纺丝参数对纤维形貌的影响. 用DSC方法对电纺纤维膜的结晶性能进行了研究, 并与溶液浇铸膜的进行了比较. 结果表明, 电纺纤维膜的熔点与溶液浇铸膜的相同, 与溶液的浓度无关, 但结晶度比溶液浇铸膜的低. 力学性能用拉伸试验进行了测试, 观察到很长的断裂伸长率.

关键词: 聚甲醛, 电纺纤维膜, 结晶度, 拉伸测试

Abstract: Polyoxymethylene nanofibers were prepared by electrospinning with 1,1,1,3,3,3-hexafluoroisopropanol as the solvents. The fiber morphology was observed by field emission scanning electron microscopy. The average fiber diameters range from 0.3 μm to 1.2 μm. The effects of various parameters such as solution concentration, tip-to-collector distance, voltage and temperature on the morphology of the fibers were investigated. The crystalline properties of the electrospun mats were measured by DSC and compared with those of the solution-cast films. The electrospum mats have the same melting temperature, regardless of the solution concentration with the solution-cast film, but the electrospun mats have a lower degree of crystallinity. The mechanical properties were tested by tensile tests, and a very long elongation to break was observed.

Key words: Polyoxymethylene, Electrospun mat, Crystallinity, Tensile test

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