高等学校化学学报

高等学校化学学报 ›› 2009, Vol. 30 ›› Issue (7): 1371.

• 研究论文 • 上一篇    下一篇

SDBS/HCl化学刻蚀法制备具有纳米-微米混合结构的铝基超疏水表面

潘立宁, 董慧茹, 毕鹏禹   

  1. 北京化工大学理学院, 北京 100029
  • 收稿日期:2008-10-14 出版日期:2009-07-10 发布日期:2009-07-10
  • 通讯作者: 董慧茹, 女, 教授, 主要从事表面化学研究. E-mail: donghr@mail.buct.edu.cn

Preparation of Aluminum Superhydrophobic Surface with Nano-Micro Mixed Structure by SDBS/HCl Etching Method

PAN Li-Ning, DONG Hui-Ru*, BI Peng-Yu   

  1. School of Science, Beijing University of Chemical Technology, Beijing 100029, China
  • Received:2008-10-14 Online:2009-07-10 Published:2009-07-10
  • Contact: DONG Hui-Ru. E-mail: donghr@mail.buct.edu.cn

PDF (PC)

被引次数

64

摘要：

采用阴离子表面活性剂十二烷基苯磺酸钠(SDBS)作为辅助刻蚀剂, 利用盐酸刻蚀, 在铝基质的表面形成了纳米-微米混合的粗糙结构; 化学刻蚀后的粗糙表面经过1H,1H,2H,2H-全氟癸烷基三乙氧基硅烷(FDTES)的修饰, 形成了接触角大于160°的超疏水表面. 扫描电镜表征结果显示, 所得到的超疏水表面具有纳米-微米混合结构; 基于此, 利用气泡辅助刻蚀机理初步解释了二级混合结构产生的原因, 认为是坑刻蚀和位错刻蚀的共同作用导致了混合结构的产生. 此外, 不同pH和长时间暴露实验证明所制备的铝基超疏水表面具有良好的稳定性.

关键词: 十二烷基苯磺酸钠; 纳米-微米混合结构; 铝; 超疏水

Abstract:

The SDBS/HCl mixed solution was used to etch aluminum surface, and some nano-micro mixed structures were appeared on the surface. After modified by 1H,1H,2H,2H-perfluorodecyltriethoxysilane(FDTES), the aluminum surface was reached superhydrophobility, and the water contact angle was more than 160°. The SEM experimental results showed that the aluminum superhydrophobic surface was of nano-micro mixed structure. According to the phenomenon, the bubble assisted etching mechanism(pit-etching and dislocation etching) was used to primarily explain the cause of the two-step mixed structures. Moreover, the experiments of different pH and different exposure time showed the aluminum superhydrophobic was very stable.

Key words: Sodium dodecyl-benzenesulfonate; Nano-micro mixed structure; Aluminum; Superhydropobic

TrendMD: