The invention relates to a hydrophobic film, and specifically relates to a hydrophobic film with a self-cleaning function, and a preparation method thereof and an application thereof. The hydrophobic film is a polymer nanofiber film prepared through an electrospinning fiber technique, the surface of the hydrophobic film is subjected to nanocrystallization modification to improve the surface hydrophobicity, and the contact angle between the hydrophobic film and water is 140-180 DEG. According to the invention, the electrospinning fiber technique and the surface nanocrystallization technique are combined, the preparation technology is simple, and the prepared hydrophobic film has the self-cleaning function and a high porosity factor, and can be applied to fields of air purifying filters, film distillation and oil-water separation and the like.
; 周浩媛; 刘中云; 胡巧霞
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