Hybrid Laser Ablation and Chemical Modification for Fast Fabrication of Bio-inspired Super-hydrophobic Surface with Excellent Self-cleaning,Stability and Corrosion Resistance  

作　　者：Zhen Yang Xianping Liu Yanling Tian 

机构地区：[1]Key Laboratory of Mechanism Theory and Equipment Design,Ministry of Education,Tianjin University,Tianjin 300350,China [2]School of Engineering,University of Warwick,Coventry CV4 7AL,UK

出　　处：《Journal of Bionic Engineering》2019年第1期13-26,共14页仿生工程学报（英文版）

基　　金：Program of International S&T Cooperation(No.2016YFE0112100);National Key R&D Program of China(No.2017YFBl104700);H2020 Project(FabSurfWAR-644971);National Natural Science Foundations of China(Nos.51675371,51675376 and 51675367).

摘　　要：Although laser ablation is considered as a facile technique to fabricate bio-inspired super-hydrophobic surfaces,the issue is that the initial laser treated metallic surfaces show super-hydrophilic property.It will take a long period to reach super-hydrophobic state under ambient air.It is reported that these super-hydrophobic surfaces could be easily damaged by thermal heating effect or interaction with other liquids,causing uncontrolled loss of super-hydrophobicity.In this study,a stable super-hydrophobic aluminum surface was rapidly fab-ricated via the hybrid laser ablation and surface chemical modification of(heptadecafluoro-1,1,2,2-tetradecyl)triethoxysilane(AC-FAS).Surface morphology and chemistry were systematically investigated to explore the generation mechanism of super-hydrophobicity.The water contact angle of the treated surfaces can reach up to 160.6°±1.5°with rolling angle of 3.0°±1.0°,exhibiting perfect self-cleaning capability,long-term stability,and excellent chemical stability in acidic as well as alkaline solutions.The potentiodynamic polarization tests implied that the super-hydrophobic surfaces showed better anti-corrosion performance.This hybrid laser ablation and surface chemical modification are very time-saving and low-cost,which offers a rapid way for quantity production of super-hydrophobic surface on aluminum material.

关 键 词：bioinspiration nanosecond laser SUPER-HYDROPHOBIC chemical STABILITY corrosion resistance SELF-CLEANING long-term STABILITY 

分 类 号：TB[一般工业技术]