Designing durable icephobic surfaces

By Kevin Golovin, Sai P. R. Kobaku, D. Lee, Edward T. DiLoreto, J. Mabry, A. Tuteja. Science Advances, 2016

598 citations recorded by the source corpus.

Researchers successfully design materials with extremely low ice adhesion. Ice accretion has a negative impact on critical infrastructure, as well as a range of commercial and residential activities. Icephobic surfaces are defined by an ice adhesion strength τice < 100 kPa. However, the passive removal of ice requires much lower values of τice, such as on airplane wings or power lines (τice < 20 kPa). Such low τice values are scarcely reported, and robust coatings that maintain these low values have not been reported previously. We show that, irrespective of material chemistry, by tailoring the cross-link density of different elastomeric coatings and by enabling interfacial slippage, it is possible to systematically design coatings with extremely low ice adhesion (τice < 0.2 kPa). These newfound mechanisms allow for the rational design of icephobic coatings with virtually any desired ice adhesion strength. By using these mechanisms, we fabricate extremely durable coatings that maintain τice < 10 kPa after severe mechanical abrasion, acid/base exposure, 100 icing/deicing cycles, thermal cycling, accelerated corrosion, and exposure to Michigan wintery conditions over several months.

Subfields: Biomedical Engineering, Mechanics of Materials, Surfaces, Coatings and Films

View Paper: https://www.semanticscholar.org/paper/a3f3c1909af6572d6a882db8efe1fbd0e48591fc

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In Mechanics of Materials

In Surfaces, Coatings and Films

Citations in the corpus

A survey of icephobic coatings and their potential use in a hybrid coating/active ice protection system for aerospace applications (2019, background): “The low surface energy of the functional group bonds to the siloxane chain in combination with the low elastic modulus enables them to be icephobic [39].”
A critical review of the measurement of ice adhesion to solid substrates (2018, methodology): “Common direct mechanical tests include push tests [10, 11, 16, 17, 19, 48, 49, 72-104] and shear tests (such as a lap joint shear test) [6-9, 13, 105-122].”