Corrosion resistance and dynamic anti-icing of superhydrophobic surface on ASW

Abstract

ABSTRACTThe superhydrophobic surface (SHPS) with a contact angle (CA) of 151° and a sliding angle (SA) of 0.5° was successfully fabricated on aluminium stranded wires (ASW) via a simple chemical etching process, and subsequently covered with a fluoroalkylsilane film. The wettability and microstructure of consequent SHPS was characterised by CA/SA, scanning electron microscopy and 3D colour laser scanning microscope, respectively. A simple dynamic icing experimental system was performed. The corrosion resistance and dynamic anti-icing property were also investigated by acid/alkaline solution corrosion and dynamic icing test. The results showed that, due to the combined effect of micro-nano structure, air cushion and capillary. The SHPS possessed great corrosion-resistant and anti-icing properties; moreover, the anti-icing property increased by 68.2% and the starting icing time was delayed by six times, which should be critical to the potential application in industry.