仿生超疏水聚丙烯薄膜的制备与性能  

Preparation and Properties of Biomimetic Superhydrophobic Polypropylene Films

作　　者：吉海燕[1] 陈刚[1] 胡杰[1] 袁新华[1] 宋浩杰[1] 赵玉涛[1] 

机构地区：[1]江苏大学材料科学与工程学院,江苏镇江212013

出　　处：《高分子材料科学与工程》2011年第8期154-156,共3页Polymer Materials Science & Engineering

基　　金：国家863计划资助项目(2007AA03Z548);江苏省高技术研究项目(BG2005026);江苏大学博士创新基金(CX09B_02XZ)

摘　　要：采用简单溶剂/非溶剂法制备出超疏水性聚丙烯薄膜。该薄膜表面与水的接触角为160°,滚动角小于4°。pH值为1～14的水溶液在其表面都有很高的接触角。通过对表面进行扫描电子显微镜分析可知,薄膜具有类鸟巢状多孔微纳米复合微观结构,这种结构可捕获空气,形成水与基底之间的气垫,对表面超疏水性的产生起到了关键的作用。用Cassie理论进行了分析,结果表明,约9%的面积是水滴和基体接触,而有约91%的面积是水滴和空气接触。A simple solvent/non-solvent method has been developed for fabricating the superhydrophobic polypropylene film.The resulted film shows ultra-hydrophobicity with a high contact angle（160°） and low sliding angle（less than 4°）.Moreover,the surface shows high contact angles,larger than 150°,for all the solutions with pH ranging from 1 to 14.Scanning electron microscopy images shows a kind of bird-nest-like and micro/nano binary structure on the as-fabricated polypropylene surface,which can trap air and form air cushion between water and the surface.Thus this micro/nano hierarchical structure plays an important role in the formation of the superhydrophobicity.The superhydrophobic phenomenon of the prepared surface has been analyzed according to Cassie theory,and it is proposed that only about 9% of the water contact surface is contacted with the substrate and the rest 91% is contacted with the air cushion.

关 键 词：超疏水 聚丙烯 接触角 

分 类 号：TB383[一般工业技术—材料科学与工程]