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Novel strategy in increasing stability and corrosion resistance for super-hydrophobic coating on aluminum alloy surfaces |
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| Authors: | Bo YinLiang Fang An-qiong TangQiu-liu Huang Jia HuJian-hui Mao Ge BaiHuan Bai |
| Affiliation: | a Department of Applied Physics, Chongqing University, Chongqing, 400044, China b National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing, 400044, China c State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing, 400044, China |
| Abstract: | A novel super-hydrophobic coating was prepared by chemical modification on the anodized aluminum alloy surface. The surface structure was characterized by water contact angle measurement, scanning electron microscopy (SEM), and the composition was measured by X-ray photoelectron spectroscopy (XPS). The corrosion behavior of the super-hydrophobic coating was evaluated by the polarization curve and the electrochemical impedance spectroscopy (EIS). It was found that the static water contact angle on the surface of super-hydrophobic coating was as high as 167.7 ± 1.2°, and the sliding angle was 5°. The super-hydrophobic coating resulted in excellent corrosion resistance property and the super-hydrophobic coating showed a good stability. |
| Keywords: | Aluminum alloy Corrosion resistance Super-hydrophobic coating Electrochemical |
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