“…Imitating lotus effect, the superhydrophobic surfaces have been fabricated in many different ways such as anodic oxidation [7][8][9], electrodeposition and chemical etching [10][11][12], plasma etching [13], laser treatment [14][15][16][17][18], electrospinning, sol-gel processing [19,20], etc. In this work, the alkali treatment enhancing chemical bath deposition method was firstly used to prepare the superhydrophobic PVDF film surface, which could be widely used as topcoats of membrane structures, such as tension membrane structures, architectural umbrellas, carshelters, and tent fabrics [21,3], and so on.…”