The elastic membranes with different surface stiffness were fabricated via spin-coating followed by the laser ablation. The as-fabricated elastic membrane exhibited superhydrophobicity with a rough microstructure. The droplet impacting experiment on the cold elastic superhydrophobic membrane was conducted, and the influence of surface stiffness and impacting speed on the droplet impacting process were investigated. It was found that the elastic superhydrophobic membrane exhibits a robust anti-icing performance compared with the elastic hydrophobic membrane. A lower surface stiffness corresponds to a larger deformation degree of the elastic membrane and to a smaller maximum droplet spreading diameter. Moreover, the contact time decreases with the increase of impacting speed as for the same stiffness of the cold elastic superhydrophobic membrane. The underlying mechanism of the cold elastic membrane with low ice adhesion may be due to the face that the deformation of the superhydrophobic membrane provides an elastic force for the droplet to detach from the surface and thus reduce the heat transfer between the droplet and the surface.

中文翻译：

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液滴对低冰附着力的冷弹性超疏水膜的影响

通过旋涂然后激光烧蚀来制造具有不同表面刚度的弹性膜。制成的弹性膜表现出超疏水性且具有粗糙的微观结构。在冷弹性超疏水膜上进行了液滴冲击实验，研究了表面刚度和冲击速度对液滴冲击过程的影响。已经发现，与弹性疏水膜相比，弹性超疏水膜表现出强健的防冰性能。较低的表面刚度对应于弹性膜的较大变形程度并且对应于较小的最大液滴散布直径。而且，与冷弹性超疏水膜的相同刚度一样，接触时间随着冲击速度的增加而减少。