高等学校化学学报

高等学校化学学报 ›› 2009, Vol. 30 ›› Issue (4): 731.doi:

• 研究论文 • 上一篇    下一篇

静电纺丝制备超疏水TiO2纳米纤维网膜

王丽芳1,2, 赵勇1, 江雷1, 王佛松1   

    1. 北京分子科学国家实验室, 有机固体院重点实验室, 中国科学院化学研究所, 北京 100190;
    2. 中国科学院研究生院, 北京 100049
  • 收稿日期:2008-10-07 出版日期:2009-04-10 发布日期:2009-04-10
  • 通讯作者: 江雷, E-mail:jianglei@iccas.ac.cn
  • 基金资助:

    国家自然科学基金(批准号: 20801057, 20774101)、国家“八六三”计划(批准号:2007AA03Z327)和国家“九七三”计划(批准号: 2007CB936403, 2009CB930404)资助.

Superhydrophobic TiO2 Nanofabric Mesh Fabricated by Electrospinning

WANG Li-Fang1,2, ZHAO Yong1, JIANG Lei1*, WANG Fo-Song1   

    1. Beijing National Laboratory for Molecular Sciences(BNLMS), CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China;
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2008-10-07 Online:2009-04-10 Published:2009-04-10
  • Contact: JIANG Lei, E-mail:jianglei@iccas.ac.cn

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摘要：

采用静电纺丝技术构筑粗糙表面, 再使用廉价的低表面能物质硅油在煅烧过程中进行同步修饰, 制备出接触角大于150°, 滚动角小于5°的TiO2超疏水表面. 该超疏水表面具有由TiO2纳米纤维和微米尺寸颗粒状硅油高温分解产物织构而成的纳米纤维网膜结构, 这种特殊的微纳米复合粗糙结构和疏水性硅油分解产物的修饰作用导致TiO2纳米纤维网膜的超疏水性. 这种超疏水的TiO2材料为超疏水材料在防水织物、无损失液体运输和微流体等领域的应用提供了新的研究视野.

关键词: 二氧化钛; 超疏水; 纳米纤维; 静电纺丝

Abstract:

A TiO2 mesh with superhydrophobic property is facile fabricated through electrospinning process followed by calcinations with silicon oil. The PVP/titania mesh interweaved by nanofibers, which is of rough surface structures, is firstly prepared by electrospinning. Then the silicon oil is dropped on the titania mesh. After this mesh is calcinated, it turns to TiO2 and silican composite with micro/nanoscale roughness. This composite mesh exhibits superhydrophobic property with high water contact angle and low sliding angle, which is attributed to the combination of low surface free energy and high surface roughness. This study provides a simple and effective method for generating non-wetting materials and may blazes interesting insights to design novel materials including non-loss liquid transport, self-cleaning surface and many other applications.

Key words: TiO2; Superhydrophobic; Nanofibers; Electrospinning

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