高等学校化学学报 ›› 2020, Vol. 41 ›› Issue (4): 846-854.doi: 10.7503/cjcu20190537

• 材料化学 • 上一篇    

超疏水聚苯胺/聚四氟乙烯复合膜的制备及油-水乳液分离性能

任文,张国立,闫涵,胡兴华,李焜,王景凤,李瑞琦()   

  1. 哈尔滨工程大学, 超轻材料与表面技术教育部重点实验室, 哈尔滨 150000
  • 收稿日期:2019-10-17 出版日期:2020-04-10 发布日期:2020-02-17
  • 通讯作者: 李瑞琦 E-mail:liruiqi@hrbeu.edu.cn
  • 基金资助:
    国家自然科学基金(21574033);中央高校基础研究基金(HEUCF20161004, HEUCFQ1417)

Preparation of Superhydrophobic Polyaniline/Polytetrafluoroethylenethylene Composite Membrane and Its Separation Ability for Oil-Water Emulsion

REN Wen,ZHANG Guoli,YAN Han,HU Xinghua,LI Kun,WANG Jingfeng,LI Ruiqi()   

  1. Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150000, China
  • Received:2019-10-17 Online:2020-04-10 Published:2020-02-17
  • Contact: Ruiqi LI E-mail:liruiqi@hrbeu.edu.cn
  • Supported by:
    Supported by the National Natural Science of China(21574033);the Fundamental Research Funds for the Central Universities, China(HEUCF20161004, HEUCFQ1417)

摘要:

以苯胺为原料, 采用原位聚合法在聚四氟乙烯(PTFE)基体上合成聚苯胺/聚四氟乙烯(PANI/PTFE)复合膜. 利用光学显微镜、 扫描电子显微镜(SEM)、 傅里叶变换红外光谱(FTIR)、 紫外-可见吸收光谱(UV-Vis)和静态水接触角测试对PANI/PTFE复合膜的形貌、 结构和浸润性进行分析, 并对其油包水乳液分离性能、 通量和循环使用性能进行了测试. 研究结果表明, PANI/PTFE复合膜仅在重力条件就能有效分离油包水乳液; 而且重复数十次过滤后, PANI/PTFE复合膜仍具有良好的抗污能力和分离性能.

关键词: 超疏水性, 聚苯胺聚四氟乙烯复合膜, 乳液分离, 稳定性

Abstract:

With aniline as a raw material, polyaniline(PANI) composite membrane was synthesized on polytetrafluoroethylene(PTFE) by in-situ polymerization. The morphology, chemical structure and the wettability of PANI/PTFE composite membrane were analyzed by optical microscopy, scanning electron microscopy(SEM), Fourier transform infrared spectroscopy(FTIR), ultraviolet-visable absorption spectroscopy(UV-Vis) and static water contact angle tester, and the water separation performance, flux and cycle performance of the water-in-oil emulsion were tested. The results show that PANI/PTFE composite membrane can effectively separate oil-in-water emulsion only under gravity conditions, and it still has good anti-fouling ability and separation performance after filtration for dozens of times.

Key words: Superhydrophobicity, Polyaniline/polytetrafluoroethylene composite membrane, Emulsion separation, Stability

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