The superhydrophobic coating has many excellent properties, but due to the limitation of poor surface mechanical stability and sophisticated preparation engineering, it is challenging to realize large-area application. In this study, a robust superhydrophobic coating with excellent performance was prepared by a simple and fast method. The modified silica nanoparticles was sprayed on the hydrophobic polyurethane coating, and the superhydrophobic surface with a water contact angle of 160 and sliding angle of 2 was successfully prepared after curing under UV lamp for 3 min. The coating can be applied to the surface of all kinds of substrates, and it still has a static water contact angle of 150 after 400 cycles of friction on 500 mesh sandpaper. Furthermore, the coating with verified self-cleaning and anti-icing properties exhibits superhydrophobicity to strong acid and alkali solutions. This simple, fast and environmentally friendly preparation method is expected to realize the wide application of superhydrophobic coatings.

超疏水涂层具有许多优异的性能，但是由于不良的表面机械稳定性和复杂的制备工艺的局限性，实现大面积应用是一个挑战。在这项研究中，通过简单而快速的方法制备了一种具有优异性能的坚固耐用的超疏水涂料。将改性的二氧化硅纳米粒子喷涂在疏水性聚氨酯涂层上，在紫外灯下固化3分钟后，成功制备出水接触角为160，滑动角为2的超疏水表面。该涂层可以应用于各种基材的表面，在500目砂纸上摩擦400次后，其静态水接触角仍为150。此外，具有经过验证的自清洁和防冰性能的涂料对强酸和强碱溶液表现出超疏水性。这种简单，快速且环保的制备方法有望实现超疏水涂料的广泛应用。