Minimizing adhesion of ice has been the subject of extensive studies for applications such aircraft wings and power transmission wires, while a growing interest concerns coatings for wind turbine blades. This paper reports new, transparent ice-release hybrid coatings that incorporate fluorous polyoxetane soft blocks and consist of urethane, urea and siliceous components.  Unexpectedly, these coatings undergo compositionally dependent vertical phase segregation into nanosurface, mesosurface, and bulk domains. Using a combination of ATR-IR spectroscopy, TM-AFM, dynamic contact angles and laboratory ice-removal tests, results are presented that provide insight into low peak removal forces and removal energies. A new theory is described to account for easy release.1 The authors thank the National Science Foundation (DMR-0802452 and DMR-1206259) for generous support of this research.

Hybrid ice-release coatings: New polyoxetane fluorous elastomers, new laboratory test, new theory

245th National Meeting (2013)

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