Fabrication of Superhydrophobic Surfaces on Al Substrates for Anti-Adhesion and Self-Cleaning Applications
Superhydrophobic surfaces,which have anti-adhesion and self-cleaning properties,were fabricated on Al substrates.The self-cleaning surface was prepared by two steps:firstly,a chemical solution method was used to create the surface roughness with disorderly veins micronanostructures.Secondly,fluoroalkylsilane was deposited on the rough surface to lower its surface energy.The combination of veins micronanostructures and fluoroalkylsilane modification gave the surface a superhydrophobicity with static water contact angle of 166° and sliding angle of smaller than 1°.Additionally,the surface showed a strong anti-adhesion with water and a satisfied self-cleaning property.Water droplets easily rolled off the surface and picked up dirt and debris with them.The surfaces obviously corresponded to Cassie (not Wenzel)-model.Air entrapped within the veins microstructures greatly increases the air/water interface,effectively preventing the penetration of water into the grooves,and finally exhibiting the self-cleaning property.The results will greatly extend Al substrates for specific functions such as water-repellence,self-cleaning and anti-fouling.
Self-cleaning Anti-adhesion Superhydrophobic Lotus-effect
Tao Li Changsong Liu Qiang Zhang Zhiwen Li
School of Mechanical Engineering, Institute of Advanced Materials Technology, Qingdao Technological University, Qingdao 266033, PR China
国际会议
The Sixth China International Conference on High-Performance Ceramics(第六届中国先进陶瓷国际研讨会(CICC-6))
哈尔滨
英文
534-537
2009-08-16（万方平台首次上网日期，不代表论文的发表时间）