High-thermal-conductive moisture permeable film and preparation method thereof

The invention discloses a high-thermal-conductive moisture permeable film and a preparation method of the high-thermal-conductive moisture permeable film. The high-thermal-conductive moisture permeable film comprises a film base material and a high-thermal-conductive filler, wherein the high-thermal-conductive filler accounts for 1-10wt% of the total weight of the film base material and the high-thermal-conductive filler, and the film base material is as balance. The preparation method of the high-thermal-conductive moisture permeable film comprises the following steps of 1. casting liquid preparation: dissolving the film base material and the high-thermal-conductive filler into corresponding solvents according to the proportion to prepare the casting liquid, heating, and uniformly stirring through ultrasonic shaking for spare; 2. film preparation with a dry method: performing film wiping treatment on the casting liquid, wherein the thickness of the film is controlled to be 150-250mum, placing the film in the air for 24 hours to enable the solvent to volatilize naturally; or film preparation with a wet method: performing film wiping treatment on the casting liquid, wherein the thickness of the film is controlled to be 150-250mum, and then placing the film into a coagulation bath for film formation with the wet method, taking the film out after 5-10 minutes, placing the film into purified water and standing for 30-50 hours to remove the solvent, and then drying. The high-thermal-conductive moisture permeable film has high thermal conductive coefficient, and has high total heat recovery efficiency while having high selectivity.