▎ 摘　　要

NOVELTY - Method for preparing material by graphene waste mask, involves (1) extracting polypropylene layer material in disposable medical mask, soaking it in the liquid silica gel, after the silica gel is soaked with polypropylene layer material, taking out the PP layer material and paving on the surface of the processing baseplate; (2) removing the PP layer material surface redundant silica gel, and heating and drying to obtain the film to be processed; and (3) laser calcining the surface of the film to be processed by laser engraving machine converting the polypropylene layer material to obtain the graphene-set pattern of the film. USE - The method is useful for preparing material by graphene waste mask, which is useful in manufacturing temperature sensor, humidity sensor, and flexible sensor. ADVANTAGE - The method enables to prepare material graphene that has excellent sensor performance and super-characteristics.