Study on the influence of wet and cold environment on the surface morphology of superhydrophobic anti-icing coatings

In this study, a superhydrophobic anti-icing coating was developed using fluorosilicone rubber as the base material, and its performance evolution under wet and cold environmental conditions was systematically investigated. The experimental results show that the initial coating has excellent superhydrophobicity (contact Angle >150°, rolling Angle <5°) and low ice adhesion strength, which is attributed to the micro-nano porous structure of its surface. However, low temperature water leaching resulted in significant degradation of coating properties, especially in the first 1 hour. The contact Angle decreased, the ice adhesion strength increased, and the micro-nano structure gradually collapsed, and the surface tended to be smooth. Despite the reduced performance, the coating is still better than the bare aluminum surface, indicating that it has some anti-icing ability. The study revealed the mechanism of water molecule impact on the surface structure and provided a theoretical basis for the optimization of anti-ice coating for electric power equipment. In the future, the environmental durability of the coating should be further improved.