Acta Chimica Sinica ›› 2008, Vol. 66 ›› Issue (12): 1470-1476. Previous Articles     Next Articles

含氟丙烯酸酯共聚物制备超疏水表面及其形成机理的研究

魏海洋 李欣欣* 王 康 贺文潇 韩哲文   

  1. (华东理工大学材料科学与工程学院 超细材料制备与应用教育部重点实验室 上海 200237)
  • 收稿日期:2007-09-07 修回日期:2008-02-14 出版日期:2008-06-28 发布日期:2008-06-28
  • 通讯作者: 李欣欣

Study on Preparation and Forming Mechanism of Super-hydrophobic Surface by Perfluoroalkyl Ethyl Acrylate Copolymers

WEI, Hai-Yang LI, Xin-Xin* WANG, Kang HE, Wen-Xiao HAN, Zhe-Wen   

  1. (Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering,
    East China University of Science and Technology, Shanghai 200237)
  • Received:2007-09-07 Revised:2008-02-14 Online:2008-06-28 Published:2008-06-28
  • Contact: LI, Xin-Xin

The super-hydrophobic copolymer films of perfluoroalkyl ethyl acrylate (FAEA) and methyl methacrylate (MMA) were prepared by evaporating solvent of 1,1,2-trifluoro-trichloro-ethane (F113). The surface morphologies and hydrophobicity of as-prepared films were greatly determined by the copolymer structure and the molecular weight as well as the casting conditions. As increasing the proportion of FAEA in the copolymer, the films surface became smoother. The random copolymers were inclined to form rougher surfaces than the block copolymers. Moreover, the copolymers with higher molecular weight or as cast at higher temperature will benefit to achieve films with harsh surfaces. Forming mechanism as well as affecting factors of the super-hydrophobic films was also proposed and discussed in this paper.The super-hydrophobic copolymer films of perfluoroalkyl ethyl acrylate (FAEA) and methyl methacrylate (MMA) were prepared by evaporating solvent of 1,1,2-trifluoro-trichloro-ethane (F113). The surface morphologies and hydrophobicity of as-prepared films were greatly determined by the copolymer structure and the molecular weight as well as the casting conditions. As increasing the proportion of FAEA in the copolymer, the films surface became smoother. The random copolymers were inclined to form rougher surfaces than the block copolymers. Moreover, the copolymers with higher molecular weight or as cast at higher temperature will benefit to achieve films with harsh surfaces. Forming mechanism as well as affecting factors of the super-hydrophobic films was also proposed and discussed in this paper.

Key words: super-hydrophobic surfaces, fluorinated polymer, solvent evaporation-phase separation, contact angle