Minoofar, Ghazal, Momen, Gelareh, Yahyaei, Hossein et Jafari, Reza.
2026.
« Designing silicone-epoxy coatings for outdoor applications: Long-term icephobicity and UV resistance ».
ACS Omega, vol. 11, nº 23.
34130–34145.
Compte des citations dans Scopus : 2.
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Résumé
Outdoor infrastructures and energy systems frequently operate under severe climatic constraints, where prolonged UV exposure and repetitive icing–deicing cycles accelerate coating degradation and compromise long-term reliability. In this work, we report a new class of chemically engineered silicone–epoxy coatings that uniquely combine flexible siloxane linkages with an optimized UV-stabilization package to achieve durable, weather-resilient icephobicity. The formulation incorporates a reactive silicone intermediate resin (DC3037, phenyl: methyl 0.25:1), consistent with its integration into the epoxy backbone via stable Si–O–C bonds. This architecture promotes controlled surface migration of siloxane chains, generating a lubricating, low-surface-energy interface essential for long-term ice repellency. To mitigate the well-known photodegradation of silicone–epoxy networks, a synergistic stabilizer system─Tinuvin 400 and 329 (UV absorbers) coupled with Tinuvin 292 (HALS)─was incorporated to suppress photo-oxidation and yellowing. Comparative evaluation against a commercial benchmark demonstrated markedly superior environmental durability, including the retention of icephobic performance after extensive cycling. The optimized coating exhibited an ice adhesion strength below 20 kPa after 50 icing/deicing cycles and exceptional resistance to UV-induced chemical and optical degradation, with a total color change ΔE < 3 and a yellowing index < 20 after 300 h of accelerated UV exposure. Overall, this multifunctional silicone–epoxy system represents a robust and scalable solution for protecting outdoor equipment in cold and high-irradiance environments, offering a significant advancement toward next-generation durable icephobic and weather-resistant coatings.
| Type de document: | Article publié dans une revue, révisé par les pairs |
|---|---|
| Chercheur(-euse): | Chercheur(-euse) Momen, Gelareh |
| Affiliation: | Génie aérospatial |
| Date de dépôt: | 29 juin 2026 17:24 |
| Dernière modification: | 25 sept. 2026 23:50 |
| URI: | https://espace2.etsmtl.ca/id/eprint/33850 |
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