Waterproof breathable film as well as preparation method and application thereof

The invention discloses a waterproof breathable film as well as a preparation method and application thereof. Wherein the waterproof breathable film comprises a waterproof binder and a conductive carbon material. The preparation method comprises the following steps: S1, slurry mixing: uniformly dispersing carbon powder, a binder, a film-forming agent and a solvent to prepare mixed slurry; s2, coating: coating the slurry on a substrate, and uniformly coating by using a scraper to form a film; s3, curing: putting the coated film into a coagulating bath for curing, then removing the film from the substrate, transferring the film into water for soaking to remove residual liquid, and finally, carrying out air-drying treatment on the obtained wet film; s4, performing heat treatment, namely performing heat treatment on the air-dried membrane in a muffle furnace to obtain the waterproof breathable membrane. The preparation process is simple, the cost is low, batch production is easy, and good commercialization prospe