Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 556, Issue -, Pages 291-298Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.colsurfa.2018.08.044
Keywords
Superhydrophobic; Electrodeposition; Beryllium copper alloy; Corrosion resistance; Self-cleaning
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Funding
- National Nature Science Foundation of China [51775145]
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Superhydrophobic surfaces have a wide application prospect in the future industrial production due to its special abilities. The fabrication of superhydrophobic coating on metal surfaces can improve its performance. A one-step electrodeposition method is proposed to construct nanostructures on the surface of beryllium copper (Be-Cu) alloys, and a mixture of copper chloride and stearic acid is used as the electrolytes. The static contact angle of water on the surface can reach up to 163 +/- 4 degrees, a sliding angle of 1.7 +/- 0.2 degrees. The nanostructure and chemical composition on the surface were evaluated by scanning electron microscopy and X-ray photoelectron spectroscopy respectively. The corrosion resistance was tested through electrochemical measurement. It was found that the as-prepared superhydrophobic coating improved the corrosion resistance significantly. In addition, the coating with excellent self-cleaning performance was proved. This method solves the problems of complicated process, improves the efficiency effectively, and the electrolyte is eco-friendly.
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