ArticleACS omega2025
Icephobicity of Oil-Infused Silicone Elastomer Coatings: Ice Adhesion, Freezing Time, and Room-Temperature Characterization.
Article in ACS omega, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
4 authors.
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Abstract
Passive anti-icing coatings are a promising solution to the dangers of ice accumulation on surfaces. We studied plain polydimethylsiloxane (PDMS) and (commercially available) NuSil R-2180 coatings alongside PDMS coatings infused with two molecular weights and percentages of silicone oil. The icephobicity of the coatings was measured via ice adhesion strength and freezing time. 100 repeated deicing cycles were performed, which showed the oil-infused coatings had consistently lower ice adhesion strengths (∼10-20 kPa) than nonoil-infused coatings (∼100 kPa). The nonoil-infused coatings also showed increasing instances of exceptionally high ice adhesion strengths (>650 kPa), reducing the reliability of their icephobicity long-term. Oil infusion did not negatively affect the freezing time of the coatings, and despite decreases in freezing time after 100 deicing cycles, the coatings maintained an improvement compared to uncoated aluminum. Analysis showed adhesion strength is more strongly affected by shear modulus than coating thickness, work of adhesion, or static water contact angle. Wear from the deicing cycles was minimal. Any wear that was present did not significantly affect icephobicity. Oil infusion of elastomer coatings reduces ice accumulation on surfaces and provides a more reliable long-term solution for anti-icing applications.
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Registered trials
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