Preparation and characterization of super-hydrophobic PTFE films

Abstract

Abstract: Polystyrene（PS）emulsion was obtained from an emulsion polymerization process，and then the as-prepared emulsion was added into polytetrafluoroethylene（PTFE）emulsion with different volume ratio to form hybrid emulsion. The films were prepared by dip-withdrawing method. While the volume ratio of PS emulsion to PTFE was 0.6，after being dried at 80 ℃ and heat-treated at 330 ℃ and 420 ℃，the films exhibited a superhydrophobic property. The water contact angle of the films could reach to 152.4°. Field emission scanning electron microscopy（FESEM），Jupiter simultaneous thermal analyzer and Fourier transform infrared spectrophotometer（FTIR）were applied to analyze the morphology and the structure of the surface.

Key words: superhydrophobic, polytetrafluoroethylene emulsion, polystyrene emulsion, emulsion hybrid, contact angle

摘要： 通过乳液聚合反应制得聚苯乙烯（PS）乳液，将PS按照不同的体积比和聚四氟乙烯（PTFE）乳液混合得到杂化乳液。使用浸渍提拉法制备薄膜，在80 ℃烘干，330 ℃和420 ℃进行热处理，当PS与PTFE两种乳液体积比为0.6时得到超疏水薄膜，薄膜与水的接触角最高可达152.4°。使用场发射电子显微镜（FESEM）、Jupiter同步热分析仪和傅里叶红外光谱仪（FTIR）对薄膜的表面形貌和化学组成进行了表征。

关键词: 超疏水, 聚四氟乙烯乳液, 聚苯乙烯乳液, 乳液杂化, 接触角

LIU Shanshan，LI Jubao，CHEN Yuqing. Preparation and characterization of super-hydrophobic PTFE films[J]. Chemical Industry and Engineering Progree, 2012, 31(03): 604-606.

刘杉杉，李举豹，陈玉清. 聚四氟乙烯超疏水薄膜的制备和表征[J]. 化工进展, 2012, 31(03): 604-606.

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Preparation and characterization of super-hydrophobic PTFE films

聚四氟乙烯超疏水薄膜的制备和表征

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