Abstract Superamphiphobic surfaces with low sliding angles, hot water repellency and multi-functionalities are attractive in academic and industrial fields but very challenging to construct. Herein, we present a facile spray-coated polyperfluoroalkylsilane/SiO2 nanoparticles (fluoroPOS/SiO2 NPs) surface featuring excellent static and dynamic superamphiphobicity towards various liquids including cold water, strong acid/alkali, hot water and even n-hexadecane with surface tension as low as 27.5 mN·m−1. The fluoroPOS/SiO2 NPs were fabricated by one-pot hydrolytic co-condensation of tetraethyl orthoilicate (TEOS) and 1H, 1H, 2H, 2H-perfluorodecyltriethoxysilane (PFDTES) in the presence of SiO2 NPs. The morphologies and chemical compositions of the fabricated superamphiphobic (SAPB) surface were analyzed. The electrochemical impedance spectroscopy (EIS) results present a significant improvement by five orders of magnitude of the Rct value. After ten days exposure to corrosive environments, the Rct value shows little changes demonstrating an outstanding long term anticorrosion performance. We believe this versatile and applicable SAPB fabrication strategy could supply a promising functional materials for broad domains.

中文翻译：

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喷涂超疏水表面，具有防水性和耐久耐腐蚀性

摘要 具有低滑动角、疏水性和多功能性的超疏水表面在学术和工业领域具有吸引力，但其构建却极具挑战性。在此，我们提出了一种简便的喷涂聚全氟烷基硅烷/SiO2 纳米粒子 (fluoroPOS/SiO2 NPs) 表面，对包括冷水、强酸/碱、热水甚至表面张力低的正十六烷在内的各种液体具有优异的静态和动态超疏水性。为 27.5 mN·m-1。在 SiO2 NPs 存在下，通过原硅酸四乙酯 (TEOS) 和 1H, 1H, 2H, 2H-全氟癸基三乙氧基硅烷 (PFDTES) 的一锅水解共缩合制备氟 POS/SiO2 NPs。分析了制备的超疏水（SAPB）表面的形态和化学成分。电化学阻抗谱 (EIS) 结果显示 Rct 值显着提高了五个数量级。暴露于腐蚀性环境十天后，Rct 值几乎没有变化，表明其具有出色的长期防腐性能。我们相信这种多功能且适用的 SAPB 制造策略可以为广泛的领域提供有前途的功能材料。