J4 ›› 2012, Vol. 9 ›› Issue (1): 11-17.doi: 10.1016/S1672-6529(11)60092-9

• 论文 • 上一篇    下一篇

Fabrication of Bionic Superhydrophobic Manganese Oxide/Polystyrene Nanocomposite Coating

Xianghui Xu1,2, Zhaozhu Zhang1, Fang Guo1, Jin Yang1,2, Xiaotao Zhu1,2, Xiaoyan Zhou1,2, Qunji Xue1   

  1. 1. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences,
    Lanzhou 730000, P. R. China
    2. Graduate School, Chinese Academy of Sciences, Beijing 100039, P. R. China
  • 出版日期:2012-03-31
  • 通讯作者: Zhaozhu Zhang E-mail:zzzhang@licp.cas.cn

Fabrication of Bionic Superhydrophobic Manganese Oxide/Polystyrene Nanocomposite Coating

Xianghui Xu1,2, Zhaozhu Zhang1, Fang Guo1, Jin Yang1,2, Xiaotao Zhu1,2, Xiaoyan Zhou1,2, Qunji Xue1   

  1. 1. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences,
    Lanzhou 730000, P. R. China
    2. Graduate School, Chinese Academy of Sciences, Beijing 100039, P. R. China
  • Online:2012-03-31
  • Contact: Zhaozhu Zhang E-mail:zzzhang@licp.cas.cn

摘要:

A superhydrophobic manganese oxide/polystyrene (MnO2/PS) nanocomposite coating was fabricated by a facile spraying process. The mixture solution of MnO2/PS was poured into a spray gun, and then sprayed onto the copper substrate using 0.2 MPa nitrogen gas to construct superhydrophobic coating. The wettability of the composite coating was measured by sessile drop method. When the weight ratio of MnO2 to PS is 0.5:1, the maximum of contact angle (CA) (140?) is obtained at drying temperature of 180 ?C. As the content of MnO2 increases, the maximum of CA (155?) is achieved at 100 ?C. Surface morphologies and chemical composition were analyzed to understand the effect of the content of MnO2 nanorods and the drying temperature on CA. The results show that the wettability of the coating can be controlled by the content of MnO2 nanorods and the drying temperature. Using the proposed method, the thickness of the coating can be controlled by the spraying times. If damaged, the coating can be repaired just by spraying the mixture solution again.

关键词: bionics, superhydrophobic surface, MnO2 nanorods, nanocomposite coating, drying temperature

Abstract:

A superhydrophobic manganese oxide/polystyrene (MnO2/PS) nanocomposite coating was fabricated by a facile spraying process. The mixture solution of MnO2/PS was poured into a spray gun, and then sprayed onto the copper substrate using 0.2 MPa nitrogen gas to construct superhydrophobic coating. The wettability of the composite coating was measured by sessile drop method. When the weight ratio of MnO2 to PS is 0.5:1, the maximum of contact angle (CA) (140?) is obtained at drying temperature of 180 ?C. As the content of MnO2 increases, the maximum of CA (155?) is achieved at 100 ?C. Surface morphologies and chemical composition were analyzed to understand the effect of the content of MnO2 nanorods and the drying temperature on CA. The results show that the wettability of the coating can be controlled by the content of MnO2 nanorods and the drying temperature. Using the proposed method, the thickness of the coating can be controlled by the spraying times. If damaged, the coating can be repaired just by spraying the mixture solution again.

Key words: bionics, superhydrophobic surface, MnO2 nanorods, nanocomposite coating, drying temperature