聚四氟乙烯超疏水薄膜的制备和表征

摘要

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 ~C and heat-treated at 330 ~C and 420 ~C, the films exhibited a superhydrophobic property. The water contact angle of the films could reach to 152.4 o . 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.%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。