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- W3115373764 abstract "Superhydrophobicity originating from the “lotus effect” enables novel applications such as self-cleaning, anti-fouling, anti-icing, anti-corrosion, and oil–water separation. However, their real-world applications are hindered by some main shortcomings, especially the organic solvent problem, complex chemical modification of nanoparticles, and poor mechanical stability of obtained surfaces. Here, we report for the first time the solvent-free, chemical modification-free, and mechanically, chemically, and UV robust superhydrophobic powder coatings. The coatings were fabricated by adding commercially available polytetrafluoroethylene (PTFE) particles into powder coatings and by following the regular powder-coating processing route. The formation of such superhydrophobic surfaces was attributed to PTFE particles, which hindered the microscale leveling of powder coatings during curing. Through adjusting the dosage of PTFE, the hydrophobicity of obtained coatings can be tuned in a large range (water contact angle from 92 to 162°). The superhydrophobic coatings exhibited remarkable mechanical robustness against abrasion because of the unique hierarchical micro/nanoscale roughness and low surface energy throughout the coating and the solid lubrication effect of PTFE particles. The coatings also have robustness against chemical corrosion and UV irradiation owing to high bonding energy and chemical inertness of PTFE. Moreover, the coatings show attractive performances including self-cleaning, anti-rain, anti-snow, and anti-icing. With these multifaceted features, such superhydrophobic coatings are promising for outdoor applications. This study also contributes to the preparation of robust superhydrophobic surfaces in an environmentally friendly way." @default.
- W3115373764 created "2021-01-05" @default.
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- W3115373764 date "2020-12-31" @default.
- W3115373764 modified "2023-10-01" @default.
- W3115373764 title "Solvent-Free Fabrication of Robust Superhydrophobic Powder Coatings" @default.
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- W3115373764 doi "https://doi.org/10.1021/acsami.0c16582" @default.
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