Abstract Despite the considerable demand for unique non-wetting superhydrophobic surfaces, simple and scalable one step fabrication approach has rarely been established. Herein, we report a convenient one step hydrothermal strategy for fabrication of superhydrophobic 5083 aluminum alloy (AA5083) surface. The spontaneously formed rough micro-structures and water repellent property can be achieved after pentadecafluorooctanoic acid (PFOA) aqueous solution treatment. The surface topography and chemical compositions were studied by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS). The co-existence of flower-like micro-structures and abundant -CF3 and -CF2 groups after one step PFOA hydrothermal treatment contributes to the improved air-liquid interfacial contact area and the eventual anti-wetting behaviors. The as-prepared superhydrophobic AA5083 surface exhibits excellent water flow repellency, stable self-cleaning ability and favorable corrosion resistance. We believe the convenient and effective one step strategy will inspire the large-scale preparation of multifunctional surfaces for widely application scope.

中文翻译：

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仿生一步水热制造具有良好耐腐蚀性的超疏水铝合金

摘要 尽管对独特的非润湿超疏水表面有相当大的需求，但很少建立简单且可扩展的一步制造方法。在这里，我们报告了一种方便的一步水热策略，用于制造超疏水 5083 铝合金（AA5083）表面。十五氟辛酸（PFOA）水溶液处理后可以实现自发形成的粗糙微结构和防水性能。通过扫描电子显微镜 (SEM)、能量色散 X 射线光谱 (EDS) 和 X 射线光电子能谱 (XPS) 研究表面形貌和化学成分。经过一步全氟辛酸水热处理后，花状微结构和丰富的-CF3和-CF2基团的共存有助于改善气液界面接触面积和最终的抗润湿行为。所制备的超疏水 AA5083 表面具有优异的拒水性、稳定的自清洁能力和良好的耐腐蚀性。我们相信方便有效的一步策略将激发多功能表面的大规模制备，以实现广泛的应用范围。