Junming Huang, Genzheng Sha, Minghui Cui, Mengqiu Quan, Yuqing Wang, Yao Lu, Jin Zhu and Jing Chen
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A highly reactive soybean oil-based superhydrophobic polyurethane film with long-lasting antifouling and abrasion resistance†
Superhydrophobic polyurethanes offer robust hydrophobicity and corrosion resistance. However, it is essential to consider the durability and environmental constraints associated with these materials. This study prepared a bio-based superhydrophobic polyurethane coating film using epoxidized soybean oil, superhydrophobically modified silica nanoparticles, and OH–PDMS–OH as surface modifiers. The coating film exhibited sustained super-hydrophobicity and an excellent antifouling effect for pu-erh tea and edible oils, among other substances, after 14 days of immersion in solutions with different pH values, 28 days of exposure to air, and 2000 abrasion cycles. This finding can be applied to the development of daily indoor and outdoor antifouling protective coatings and provides a new method for the preparation of green and durable superhydrophobic antifouling coating films.
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