It is still a bottleneck to design anti-wetting homogeneous metal films or coatings with great stability via by a high-efficiency and low-cost technique with applications in fields of battery, sensors, and electronics, etc. This paper proposed an environment-friendly ultra-low-voltage electrophoretic deposition (EPD) with facile modification post-processing method to fabricate a novel extremely water-repellent functional nano-Al films with evenly loose net-like structures and high purity. The optimized stable suspension consists of water–ethanol with trace nitric acid and polyethyleneimine. Product with an ultra-high contact angle of ~ 171° and extreme low sliding angle of < 1° showed extremely anti-wetting properties, and outstanding water-repellent stability or long lifespan (> 3 years) with great potential applications. These results provide a novel approach with low-cost and less energy consumption for preparing other functional ant-wetting metal coatings with wide potential applications.

通过高效，低成本的技术来设计具有高稳定性的防湿均质金属膜或涂层，并在电池，传感器和电子等领域的应用，仍然是瓶颈。本文提出了一种环境友好型超低压电泳沉积（EPD），采用易变的修饰后处理方法，可制备出具有均匀疏松的网状结构和高纯度的新型超疏水功能纳米铝膜。优化的稳定悬浮液由水-乙醇，微量硝酸和聚乙烯亚胺组成。产品具有约171°的超高接触角和<1°的极低滑动角，显示出极佳的抗湿性，出色的防水稳定性或较长的使用寿命（> 3年），具有广阔的应用前景。