Abstract
A superhydrophobic Ni-TiO2/TMPSi nanocomposite coating was fabricated on a copper substrate by a two-step process, including simultaneous electrodeposition of Ni-TiO2, and surface chemical modification of the layer employing trimethoxy(propyl)silane. Surface characterizations was studied by FESEM, FTIR-ATR, AFM analyses. Water-repellency of the substrate significantly increased by fabrication of Ni-TiO2/TMPSi coating on the copper substrate and examined by water static contact angle (WCA = 151.6°) and sliding angle (SA = 6.2°) tests. Corrosion resistance and protective behavior of the coating was evaluated using potentiodynamic polarization and EIS analyses. The results show that the coating modification improved it´s resistance to corrosion in the NaCl solution without turbulence at ambient temperature.
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