Applied Surface Science, Vol.328, 623-631, 2015
Fabrication of color-controllable superhydrophobic copper compound coating with decoration performance
A facile and low-cost method for fabricating the color-controllable superhydrophobic coatings on copper was reported in this paper. By simply changing the electrolytic conditions, tunable color surfaces can be obtained. The fundamental cause of color variation should be attributed to the composition of resulting coatings. After modification with stearic acid, the contact angles (CA) of samples with three different colors are 156.8, 160.0, 162.8, respectively, and slide angles (SA) are all nearly 1. In addition, potentiodynamic polarization test, pH stability, atmospheric exposure test, antibacterial test, abrasion test and tape adhesion test were also performed from the viewpoint of the physical stability and chemical stability of superhydrophobic surfaces. Results indicate that the obtained surfaces be of excellent environmental adaptability, high anti-corrosion ability, and good mechanical property. Results reported here would be helpful for enlarging the application of superhydrophobic surface. Moreover, this method, chemical in situ growth of colored coating, is a new strategy for preparing color-tuned superhydrophobic surface and could be applied on other metal substrates. (C) 2014 Elsevier B.V. All rights reserved.