物理化学学报 >> 2007, Vol. 23 >> Issue (10): 1631-1636.doi: 10.3866/PKU.WHXB20071027

研究简报 上一篇    下一篇

铝合金表面超疏水涂层的制备及其耐蚀性能

李松梅; 王勇干; 刘建华; 韦巍   

  1. 北京航空航天大学材料科学与工程学院, 北京 100083
  • 收稿日期:2007-03-07 修回日期:2007-07-02 发布日期:2007-10-01
  • 通讯作者: 李松梅 E-mail:Songmei_li@buaa.edu.cn

Preparation of Superhydrophobic Coating on Aluminum Alloy with Its Anti-Corrosion Property

LI Song-Mei; WANG Yong-Gan; LIU Jian-Hua; WEI Wei   

  1. College of Material Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, P. R. China
  • Received:2007-03-07 Revised:2007-07-02 Published:2007-10-01
  • Contact: LI Song-Mei E-mail:Songmei_li@buaa.edu.cn

PDF

6514

赞

摘要： 基于含氟聚氨酯和纳米SiO2的协同作用, 在铝合金表面成功制备了一层超疏水涂层. 用红外光谱、扫描电镜和电化学测试等技术对超疏水涂层进行了表征和分析. 红外光谱结果表明, 硅烷偶联剂(A1100)成功键合到纳米SiO2表面. 扫描电镜和接触角测定仪对涂层的表面形貌表征结果表明, 涂层表面存在微米鄄亚微米尺度的粗糙结构, 接触角可达到156°, 滚动角小于5°. 电化学测试(交流阻抗和极化曲线)结果表明, 所得到的涂层极大地提高了铝合金的耐蚀性能.

关键词: 超疏水； 硅烷偶联剂； 电化学测试； 耐蚀性

Abstract: Based on the cooperation of the fluorated polyurethane and nano silicon oxide, superhydrophobic coating had been successfully fabricated on the surface of aluminium alloy. The superhydrophobic coating was characterized and investigated by FT-IR、SEM and electrochemical measurement. The FT-IR result showed that silane coupling reagent (A1100) had been grafted on the surface of the nano-silicon oxide. Scanning electronic microscopy(SEM) and optical contact angle meter (OWA) indicated that rough structure was present on the surface of the coating, and the contact angle could reach up to 156°with sliding angle smaller than 5°. The results of electrochemical measurements (EIS and polarization curve) showed that anti-corrosion property of aluminiumalloy had been greatly improved.

Key words: Superhydrophobic, Silane coupling reagent, Electrochemical measurement, Anti-corrosion property