高等学校化学学报

高等学校化学学报 ›› 2009, Vol. 30 ›› Issue (4): 821.

• 研究论文 • 上一篇    下一篇

热处理对超疏水性含氟丙烯酸酯共聚物膜表面性能的影响

魏海洋1, 贺文潇1, 粟小理1,2, 李欣欣1, 韩哲文1   

    1. 华东理工大学材料科学与工程学院, 特种功能高分子材料及其相关技术教育部重点实验室, 上海 200237;
    2. 上海三爱富新材料股份有限公司, 上海 200235
  • 收稿日期:2008-07-27 出版日期:2009-04-10 发布日期:2009-04-10
  • 通讯作者: 李欣欣, E-mail:xinxinli@ecust.edu.cn

Effect of Heat Treatment on Surface Properties of Superhydrophobic PMMA-PFAEA Film

WEI Hai-Yang1, HE Wen-Xiao1, SU Xiao-Li1,2, LI Xin-Xin1*, HAN Zhe-Wen1   

    1. Key Laboratory for Specially Functional Polymeric Materials and Related Technology of the Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China;
    2. Shanghai 3F New Materials Company Limited, Shanghai 200235, China
  • Received:2008-07-27 Online:2009-04-10 Published:2009-04-10
  • Contact: LI Xin-Xin, E-mail:xinxinli@ecust.edu.cn

PDF (PC)

被引次数

23

摘要：

以微乳液聚合法和溶液聚合法制备丙烯酸全氟烷基乙基酯和甲基丙烯酸甲酯的共聚物, 以1,1,2-三氟三氯乙烷为溶剂, 采用溶剂挥发成膜法直接制备出超疏水膜, 并研究120 ℃热处理对超疏水膜表面性能的影响. 对于用乳液聚合方法制备的超疏水膜, 随着热处理时间的延长, 滚动角表现出先逐渐增大直至完全不能滚动, 然后重新回复到极小滚动角的特殊变化过程, 而静态接触角只是略微减小, 完全不同于热处理对平滑的含氟聚合物表面接触角的影响. 扫描电镜结果显示, 聚合物膜表面形貌对应出现从微/纳复合粗糙结构到微孔粗化并重新形成微/纳复合多层粗糙结构的变化.

关键词: 超疏水表面, 含氟丙烯酸酯共聚酯, 滚动角, 热处理

Abstract:

The superhydrophobic films of perfluoroalkyl ethyl acrylate(FAEA) and methyl methacrylate(MMA) copolymers were prepared with one-step casting technique with 1,1,2-trifluoro-trichloro-ethane(F113) as solvent. It was found the contact angle(CA) decreased while sliding angle(SA) changed a lot as the heat treatment continued. Although these original films had large CA and small SA, while annealed for 3 h to 6 h, the films showed large SA hysteresis. However, if continued annealing for a longer time to 32 h, the SA reversed to very small again. The unique changes of hydrophobic properties of these films were due to the changes in surface roughness, which was shown by SEM.

Key words: Super-hydrophobic surface, Perfluoroalkylethyl acrylate, Sliding angle, Heat treatment

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