物理化学学报2009，Vol.25Issue(12)：2581-2589,9.
铝合金表面原位自组装超疏水膜层的制备及耐蚀性能
Fabrication and Anti-Corrosion Property of In situ Self-Assembled Super-Hydrophobic Films on Aluminum Alloys
摘要
Abstract
In situ rough structures on an aluminum alloy were formed by anodic oxidation method. After siloxane serf-assembly on the rough structures, super-hydrophobic and serf-cleaning films were fabricated. The static contact angle of the super-hydrophobic surface with a water drop was 157.5°±2.0° at its maximum and the contact angle hysteresis was less than 3°. The influence of anodic oxidation current density, the water content of the siloxane solution,and self-assembly time on film formation were studied by Fourier transform infrared (FT-IR) spectroscopy, field emission scanning electron microscopy (FE-SEM), energy dispersive spectroscopy (EDS), atomic force microscopy (AFM) and contact angle measurements. Optimum parameters to fabricate the super-hydrophobic surface were obtained. FE SEM and AFM results indicated that microstructures were obtained by anodic oxidation and nanostructures were obtained by the disorder of serf-assembly film. Stable super-hydrophobic surfaces were produced by the cooperation of micro/nano-stmctures and the low surface free energy of the siloxane films. The electrochemical measurement (potentiodynamic polarization) indicated that the anti-corrosion property of the aluminum alloy was greatly improved by the in situ super-hydrophobic film.关键词
超疏水/原位/自组装/硅氧烷/耐蚀性Key words
Super-hydrophobic/ In sire/ Serf-assembly/ Siloxane/ Anti-corrosion property分类
化学化工引用本文复制引用
李松梅,周思卓,刘建华..铝合金表面原位自组装超疏水膜层的制备及耐蚀性能[J].物理化学学报,2009,25(12):2581-2589,9.基金项目
The project was supported by the Aero-Science Fund,China(2007ZF51066).航空科学基金(2007ZF51066)资助项目 （2007ZF51066）
