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<p>The development of environmentally sustainable preparation methods is crucial for developing coatings that combine high mechanical strength with superior antifouling properties. Herein, a dual-repellent coating (PKF-SiO<sub>2</sub>) was fabricated through an epoxy ring-opening reaction in an aqueous environment using γ-glycidoxypropyltrimethoxysilane (KH560), nanosilica (SiO<sub>2</sub>), and 1H,1H,2H,2H-perfluorodecyltrimethoxysilane (PFAS) as raw materials. The resulting PKF-SiO<sub>2</sub> coating exhibited exceptional mechanical robustness and antifouling properties. Remarkably, liquids such as n-hexadecane, soybean oil, and glycerin showed no adhesion to the coating surface even after being subjected to 1000 cycles of friction or bending tests. Anti-icing evaluations further demonstrated that the ice adhesion pressure on the PKF-SiO<sub>2</sub> coating was reduced to 17 kPa, whereas the freezing time of the water droplets was extended to 1167 s, representing a 9-min delay compared with that of the bare substrate. These findings underscore the promising potential of the PKF-SiO<sub>2</sub> coating for enhancing antifouling and self-cleaning protection in diverse fields, such as textiles and construction.</p>

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Durable dual-repellent coatings with anti-fouling and anti-icing performance

  • 期刊论文

  • 发表日期：

    2025年4月25日

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  • Shuyang Xing,
  • Xin Wang,
  • Wei Kuang,
  • Xinyu Wang,
  • Huilin Tian,
  • Jianhan Huang,
  • Ruiyi Luo

摘要

The development of environmentally sustainable preparation methods is crucial for developing coatings that combine high mechanical strength with superior antifouling properties. Herein, a dual-repellent coating (PKF-SiO2) was fabricated through an epoxy ring-opening reaction in an aqueous environment using γ-glycidoxypropyltrimethoxysilane (KH560), nanosilica (SiO2), and 1H,1H,2H,2H-perfluorodecyltrimethoxysilane (PFAS) as raw materials. The resulting PKF-SiO2 coating exhibited exceptional mechanical robustness and antifouling properties. Remarkably, liquids such as n-hexadecane, soybean oil, and glycerin showed no adhesion to the coating surface even after being subjected to 1000 cycles of friction or bending tests. Anti-icing evaluations further demonstrated that the ice adhesion pressure on the PKF-SiO2 coating was reduced to 17 kPa, whereas the freezing time of the water droplets was extended to 1167 s, representing a 9-min delay compared with that of the bare substrate. These findings underscore the promising potential of the PKF-SiO2 coating for enhancing antifouling and self-cleaning protection in diverse fields, such as textiles and construction.