Icephobic-coating characteristics of polymers with controlled modulus
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Removing ice accreted on exposed surfaces of many critical infrastructures incurs enormous economic and social cost. Recent researches have focused on smearable slippery liquid-infused polymers with the durability. The icephobicity can be effectively controlled by modifying bulk modulus and slippery condition of polymer simultaneously, when icing/deicing process is repeated. Here, we present icephobic performance with fabricating a series of the different elastomeric coatings of siloxane polyurethane rubbers, which have the different modulus values from 1.5 to 42.6 MPa. To enhance the effect of icephobicity, we added the silicone oil and porous silica aerogel. We measured the ice adhesion strength (τice) of the prepared films with repeated icing/deicing processes. The results showed low τice below 50 kPa during 15 icing/deicing cycles.