Ice Adhesion Evaluation of PTFE Solid Lubricant Film Applied on TiO2 Coatings

Ice formation affects the performance of many industrial components, including aircraft wings, spacecraft, and power transmission cables. In particular, ice build-up on airplane components increases drag fuel consumption. A large number studies have been carried out to reduce adhesion by developing passive methods such as icephobic coatings active removal approaches mechanical vibrations or chemical-based solutions. Despite remarkable recent breakthroughs in fabrication coatings, solutions require higher durability resist cyclical detachment treatments. Functionalized TiO2 applied using suspension plasma spray (SPS) technique, shown be robust dual-scale characteristics an accretion analysis. this study, icephobicity a novel duplex coating consisting polytetrafluoroethylene (PTFE) solid lubricant films TiO2-coated substrates were evaluated. Notably, various amounts PTFE top identify ideal quantity required obtain optimal properties. was generated icing wind tunnel, amount accreted evaluated assess anti-icing Wettability parameters, static water contact angle hysteresis, measured determine mobility surface energy. shear PTFE-TiO2 custom-built test rig. The assessed measuring strength for almost twenty icing–deicing cycles, after five roughness parameters images taken from samples compared. combination film reduced 70%–90% compared that bare aluminum substrate (reference material). Additionally, results showed application uniform layer significantly maintained 25 deicing making promising candidate approaches.