Ice accumulation on outdoor surfaces created serious problems for roads, boats, airplanes, and power transmission lines. An ice-phobic coating applied to exposed surfaces appears to be a good solution to prevent ice build-up and avoid the requirement of di-icing which may result in large energy consumption, dangerous operations and expensive equipment investment. In this work, we present a simple approach for the preparation of ice-phobic coatings by thiol-ene photopolymerization of polydimethylsiloxane (PDMS) resin precursors containing silica nanoparticle. The generated porous surface was further modified to produce a liquid infused top layer required to greatly reduce ice adhesion. Three approaches were utilized to evaluate the performance of ice-phobicity. (i) Tensile strength and shear strength between the ice and coatings were tested to measure the ice adhesion of the coatings, (ii) freezing time delay was measured to show the dynamic ice formation, (iii) and the contact angle of super-cooled water was also tested.

Ice-phobic properties of liquid infused porous surfaces fabricated via thiol-ene photopolymerization

247th National Meeting (2014)

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