▎ 摘　　要

NOVELTY - Porous film comprises 10-40 pts. wt. silicone rubber precursor, 0.05-2 pts. wt. graphene, 50-90 pts. wt. solvent, and 0.5-40 pts. wt. non-solvent or pore-forming agent. USE - Porous film used as artificial skin or surgical dressings for covering mammalian skin-defective wound from bacterial infection (claimed). ADVANTAGE - The porous film has simple preparation technique, controllable thickness, excellent antibacterial activity, and promotes healing. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing porous film, which involves: (A) mixing silicone rubber precursor, graphene, non-solvent or porogen and solvent under stirring mechanically at room temperature to obtain film forming liquid; (B) standing obtained film forming liquid or degassing under vacuum, putting into mold to form a embryo film with thickness of 100 mu m to 3mm; (C) placing obtained embryo film under the environment of 25-60 degrees C for 2-60 minutes and then placing at 100-150 degrees C; and (D) removing non-solvent or porogen from obtained film to obtain final film with a pore size of 500-150 mu m.