Coating material

Coating materials used to decrease icing have a wide variety.

Coatings determined to increase icephobicity are for example polymethylsiloxane (PDMS), smooth silicone rubber and ultra-hydrophobic polycarbonate coating. Different composition of polymeric coatings has been applied widely in the different branches of industries.

Polymethylsiloxane (PDMS) PDMS coating has a very high icephobicity and can shed ice off easily.

Slippery liquid infused porous surfaces (SLIPS) have also been studied for their icephobic qualities. Flame sprayed SLIPS has a low ice adhesion value and could therefore be a viable icephobic coating option.

Fluorine containing coatings (polymeric coating).

^[1] ^[2] ^[3]

The ice adhesion strengths for seven different surface design or material groups. The ice type, mixed glaze, was accreted in IWIT and the ice adhesion was tested with CAT in Tampere University. The color depicts a specific group and the different color shades illustrate different samples within the group. ^[4]

Examples of ice adhesion values

When comparing materials or surface designs with each other, it is important to understand that they all have different wettability, surface free energy, surface morphology, liquid-solid interaction, surface chemistry, heterogeneity, and liquid absorption/retention etc.properties that make them unique. Even within the same material group, variations can be found. The data in the figure has been measured in Tampere University by using the same test setups, the IWIT and the CAT, with mixed glaze ice type. The figure illustrates how different samples within the same surface design or material group can have altering ice adhesion values. ^[4]

References

↑ Brassard, L. (2018). Icephobicity: Definition and Measurement Regarding Atmospheric Icing. In Contamination Mitigating Polymeric Coatings for Extreme Environments (pp. 123–143). Springer International Publishing.
↑ Koivuluoto, H. (2020). Thermally Sprayed Coatings: Novel Surface Engineering Strategy Towards Icephobic Solutions. Materials, 13(6), 1434–.
↑ C. Antonini, M. Innocenti, T. Horn, M. Marengo, A. Amirfazli, Understanding the effect of superhydrophobic coatings on energy reduction in anti-icing systems, Cold Regions Science and Technology, vol. 67, no. 1–2, 2011, pp. 58– 67.
↑ ^4.0 ^4.1 Icephobic Performance of Different Surface Designs and Materials. Henna Niemelä-Anttonen, Jarkko Kiilakoski, Petri Vuoristo, Heli Koivuluoto Materials Science and Environmental Engineering, Tampere University, Finland. IWAIS 2019 - Reykjavík, June 23 – 28. Proceedings – Int. Workshop on Atmospheric Icing of Structures.

[1] Brassard, L. (2018). Icephobicity: Definition and Measurement Regarding Atmospheric Icing. In Contamination Mitigating Polymeric Coatings for Extreme Environments (pp. 123–143). Springer International Publishing.

[2] Koivuluoto, H. (2020). Thermally Sprayed Coatings: Novel Surface Engineering Strategy Towards Icephobic Solutions. Materials, 13(6), 1434–.

[3] C. Antonini, M. Innocenti, T. Horn, M. Marengo, A. Amirfazli, Understanding the effect of superhydrophobic coatings on energy reduction in anti-icing systems, Cold Regions Science and Technology, vol. 67, no. 1–2, 2011, pp. 58– 67.

[:0-4] 4.0 ^4.1 Icephobic Performance of Different Surface Designs and Materials. Henna Niemelä-Anttonen, Jarkko Kiilakoski, Petri Vuoristo, Heli Koivuluoto Materials Science and Environmental Engineering, Tampere University, Finland. IWAIS 2019 - Reykjavík, June 23 – 28. Proceedings – Int. Workshop on Atmospheric Icing of Structures.

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Coating material

References

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