Abstract The achievement of superamphiphobic material with ultralow sliding angles is a highly worthwhile and challenging task because the current artificial superhydrophobicity can be easily contaminated and wetted by low surface tension liquids. Herein, we construct superamphiphobic 5083 aluminum alloy surface through a facile strategy including sono-assisted HCl etching, boiling H2O treatment and POTS grafting. Micro-nano dual scale hierarchical structure was achieved, attributing to air cushion formation and Cassie contacts. The as-prepared superamphiphobic HCl-H2O-POTS AA5083 surface has a wide range of liquids repellency to water, glycerol, ethylene glycol, peanut oil and even n-hexadecane (surface tension: 27.5 mN·m−1). The superamphiphobic surface also possesses outstanding self-cleaning ability for contaminants and chemical stability for liquid droplets with different pH values. All these advantages will endow the superamphiphobic HCl-H2O-POTS surface with broad applications prospects, including automobile, aerospace, military and marine industries.

中文翻译：

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具有低滑动角和耐酸碱液体的超疏水铝合金

摘要 获得具有超低滑动角的超疏水材料是一项非常有价值和具有挑战性的任务，因为目前的人工超疏水材料很容易被低表面张力液体污染和润湿。在此，我们通过包括声波辅助 HCl 蚀刻、沸腾 H2O 处理和 POTS 接枝在内的简便策略构建了超疏水 5083 铝合金表面。实现了微纳双尺度分层结构，归因于气垫形成和 Cassie 接触。所制备的超疏水性 HCl-H2O-POTS AA5083 表面对水、甘油、乙二醇、花生油甚至正十六烷（表面张力：27.5 mN·m-1）具有广泛的疏水性。超疏水表面还具有出色的污染物自清洁能力和不同pH值液滴的化学稳定性。所有这些优点将赋予超疏水性 HCl-H2O-POTS 表面广阔的应用前景，包括汽车、航空航天、军事和海洋工业。