Comparative Evaluation of the Shear Adhesion Strength of Ice on PTFE Solid Lubricant

The development of a durable and green icephobic coating plays vital role in the aviation industry due to adverse impact ice formation on aircraft performance. lack study into how temperature surface roughness icephobicity is main problem with present coatings. This aims qualitatively evaluate performance polytetrafluoroethylene (PTFE) solid lubricant film, as an environmentally friendly solution, custom-built push-off test device different icing conditions utilizing wind tunnel. ice-adhesion reduction factor (ARF) film has been assessed comparison bare aluminium substrate (Al 6061). energy was investigated by comparing water contact angle (WCA), hysteresis (CAH), pull-off force PTFE Al atomic microscope (AFM). results shear adhesion showed significant at various temperatures compared substrate. difference between alloy attributed differences detachment mechanism. For PTFE-based lubricant, interfacial mechanism based blisters towards centre ice. Consequently, upon continued application force, most injected would be distributed throughout blisters, ultimately causing detachment. In aluminium, minimal ?6 °C 40 N (ARF 3.41). ranges ?2 ?10 °C, for measured roughly 150 N.