Ice adhesion of PDMS surfaces with balanced elastic and water-repellent properties
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AuthorIbáñez Ibáñez, Pablo Francisco; Montes Ruiz-Cabello, Francisco Javier; Cabrerizo Vílchez, Miguel Ángel; Rodríguez Valverde, Miguel Ángel
Low ice-adhesionElasic surfacePDMSWater-repellenceOil-infused surface
Pablo F. Ibáñez-Ibáñez... [et al.]. Ice adhesion of PDMS surfaces with balanced elastic and water-repellent properties, Journal of Colloid and Interface Science, Volume 608, Part 1, 2022, Pages 792-799, ISSN 0021-9797, [https://doi.org/10.1016/j.jcis.2021.10.005]
SponsorshipMAT2017-82182-R State Research Agency (SRA); European Regional Development Fund (ERDF); Universidad de Granada / CBUA
Hypothesis: Ice adhesion to rigid materials is reduced with low energy surfaces of high receding contact angles. However, their adhesion strength values are above the threshold value to be considered as icephobic materials. Surface deformability is a promising route to further reduce ice adhesion. Experiments: In this work, we prepared elastomer surfaces with a wide range of elastic moduli and hydrophobicity degree and we measured their ice adhesion strength. Moreover, we also explored the deicing performance of oil-infused elastomeric surfaces. The ice adhesion was characterized by two detachment modes: tensile and shear. Findings: The variety of elastomeric surfaces allowed us to simultaneously analyze the ice adhesion dependence with deformability and contact angle hysteresis. We found that the impact of these properties depends on the detachment mode, being deformability more important in shear mode and hydrophobicity more relevant in tensile mode. In addition, oil infusion further reduces ice adhesion due to the interfacial slippage. From an optimal balance between deformability and hydrophobicity, we were able to identify surfaces with super-low ice adhesion.