Abstract
The excellent wettability of superhydrophobic materials means they have a wide range of potential applications. However, there are still urgent problems in corrosion resistance to be solved. In this paper, durable superhydrophobic aluminum samples were prepared by laser texturing and silanization. This superhydrophobic coating exhibits certain superhydrophobic stability with a maximum Water Contact Angle (WCA) of 153.7° and a Roll Angle (RA) of 4.5°. The corrosion resistance of superhydrophobic aluminum surface in 3.5 wt.% NaCl solution was investigated using Electrochemical Impedance Spectroscopy (EIS) and Potentiodynamic Polarization (PDP) technique. Meanwhile, the chemical stability of superhydrophobic aluminum surface in NaCl solution at different times was evaluated. The results show that the superhydrophobic coating has good corrosion resistance in NaCl aqueous solution.
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