Herein, superhydrophobic 4037 aluminum alloy surface with self-cleaning and anti-icing properties has been fabricated by a low-cost processing consisting of HCl/H₂O₂ treatment and modification of an ultra-low concentration of fluoroalkylsilane. Via a chemical etching, a coral-like hierarchical micro-nano structure has been formed on 4037 aluminum alloy substrate. Then, the wettability of etched surface treated with different levels of fluoroalkylsilane has been investigated. The results show that the etched surface after been modified with petroleum ether containing 20 mg fluoroalkylsilane can result in superhydrophobicity with a water contact angle of 160.8° and a sliding angle of 2.4°. Especially, effects of solvents on the wettability of fabricated surface have also been studied. It is found that alkane such as petroleum ether is suitably used as a solvent for fluoroalkylsilane due to a reduction on fluoroalkylsilane. In addition, obvious self-cleaning and anti-icing behaviors of the as-prepared superhydrophobic surface have been proved, which will extend the further application of aluminum alloy.

在此，通过由HCl / H ₂ O ₂组成的低成本加工，制造了具有自洁和防冰性能的超疏水4037铝合金表面。处理和改性超低浓度的氟代烷基硅烷。通过化学蚀刻，在4037铝合金基板上形成了珊瑚状的分层微纳米结构。然后，研究了用不同含量的氟代烷基硅烷处理的蚀刻表面的润湿性。结果表明，用含20 mg氟代烷基硅烷的石油醚改性后的蚀刻表面可产生超疏水性，其水接触角为160.8°，滑动角为2.4°。特别是，还研究了溶剂对加工表面润湿性的影响。发现由于减少了氟代烷基硅烷，烷烃如石油醚适合用作氟代烷基硅烷的溶剂。此外，