Grant: Alliance Grants

In cold climate regions like Canada, atmospheric ice accretion on power transmission structures poses significant risks, leading to damages, outages, and substantial financial losses. Among power transmission structures, high voltage insulators are one of the main components that should be protected from icing to avoid abnormal electrical stresses and flashover failure. Utilizing passive icephobic coatings is one of the most effective solutions to overcome this issue. However, most of these coatings struggle with durability and maintaining low ice adhesion over time. The low durability of icephobic coatings can be attributed to both surface and bulk (matrix) properties. Hence, this proposal aims to prolong the service life of icephobic coatings by integrating naturally inspired regenerative mechanisms for both the abovementioned material aspects. The main objective of this research project is to enhance the durability and long-term liability of elastomeric icephobic coatings by incorporating naturally inspired regeneration mechanisms. Collaborating with Hydro-Québec, SEDIVER, and ChemR, our multidisciplinary team seeks to develop durable, regenerative icephobic coatings for high-voltage insulators. This involves two key research paths including intrinsic self-healing strategies to restore the coating's mechanical properties and surface regeneration methods to sustain the low ice adhesion strength. Milestones include a literature review, designing test setups, formulating regenerative coatings, and conducting comprehensive weathering, durability, and electrical testing. Four dedicated students across disciplines will spearhead the research, supported by a postdoctoral researcher and a research associate. By focusing on regenerative icephobic coatings, this project addresses critical industry needs, potentially reducing resource consumption, enhancing service reliability, and minimizing downtime for Hydro-Québec. Furthermore, this innovation holds promise for global applications beyond power transmission, benefiting various sectors. The project's success will bolster industrial portfolios, create new economic opportunities, and position Canada as a leader in combating icing challenges.