▎ 摘　　要

NOVELTY - The utility model claims a release film for easy-stripping type heavy stripping OCA optical glue, comprising a composite release film, wherein the composite release film comprises a heavy release film, the heavy release film comprises an adhesive layer, the lower surface of the adhesive layer fixedly connected with with an isolation layer, the lower surface of the isolation layer fixedly connected with a graphene layer; the lower surface of the graphene layer fixedly connected with a water-absorbing resin layer, the lower surface of the water-absorbing resin layer fixedly connected with with a fog-proof layer, the upper surface of the heavy release film is fixedly connected with with a tearing sheet, the bottom of the heavy release film fixedly connected with of OCA glue. The utility model not only can be used by matching with the graphene layer through the water absorbing resin layer, the composite release film well prevents water vapor transmission, improves the use effect of the release film, at the same time, it can make the composite release film has better stability and chemical resistance by polyurethane resin layer, elasticity and mechanical property, it also can effectively increase or adjust the rigidity of the material through the nano-grade calcium carbonate layer, toughness and bending strength.