Most of the artificial superhydrophobic surfaces easily lose their good water repellency once they are chemically or mechanically damaged, which seriously hinders their practical application. Durable superhydrophobic materials with recyclability, low-temperature resistance, and self-cleaning properties were successfully prepared by employing silica particles and polytetrafluoroethylene via a simple drop-coating method. The as-prepared superhydrophobic materials not only show excellent superhydrophobicity but also display fascinating durability and chemical stability after a series of rigorous tests. Importantly, the debris scraped from the superhydrophobic materials can be recycled and easily reused to prepare new superhydrophobic materials. This facile strategy may pave the way for the scalable and recyclable robust superhydrophobic materials in practical applications.

中文翻译：

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在各种基材上制备具有可回收和自清洁特性的耐用聚四氟乙烯超疏水材料

一旦大多数人造超疏水性表面受到化学或机械破坏，它们很容易失去良好的防水性，这严重地阻碍了它们的实际应用。通过使用二氧化硅颗粒和聚四氟乙烯，通过简单的滴涂方法成功地制备了具有可回收性，耐低温性和自清洁性能的耐用超疏水材料。所制备的超疏水材料不仅显示出优异的超疏水性，而且在一系列严格的测试后还显示出令人着迷的耐久性和化学稳定性。重要的是，从超疏水性材料刮下的碎屑可以回收利用，并易于重复使用，以制备新的超疏水性材料。