Hydrophobic Coatings with Predicted Anti-Icing Properties

Abstract The paper presents the results of a study focused on the development of hydrophobic coatings to prevent the formation and accumulation of ice on surfaces exposed to low temperatures and adverse climatic factors. Hydrophobic coatings based on organic solvent-borne paint materials and water-dispersed materials have been developed, intended for further evaluation of their anti-icing properties. The influence of various hydrophobic additives (polymethylsiloxane, silicone resin, methylsiloxane resin solution, etc.) and fillers (hydrophobic aerosil, carbon black, microspheres) in the coating composition on the water contact angle at temperatures of +20°C and -10°C was evaluated. It was found that, depending on the modification of the composition, the coatings exhibit hydrophobic properties with water contact angles ranging from 90° to 147.6°. The ice adhesion to the coatings was also calculated, showing a reduction by 2-3.8 times compared to uncoated surfaces. Based on the obtained results, the optimal compositions of the coatings have been determined, for which additional studies were conducted to assess their technological and physic-chemical properties. It has been established that the developed hydrophobic coatings with predicted anti-icing properties will not only effectively prevent ice formation on surfaces but also provide a long service life under low temperatures and adverse climatic conditions.