Ultra-transparent gain photovoltaic adhesive film and preparation method thereof

The invention belongs to the technical field of packaging adhesive films, and particularly relates to an ultra-transparent gain photovoltaic adhesive film and a preparation method of the ultra-transparent gain photovoltaic adhesive film. 5 to 20 parts of modified polyolefin resin; 2 to 10 parts of a single-layer graphene dispersion liquid; 0.2 to 1 part of a crosslinking accelerator; 0.3 to 1.2 parts of organic peroxide; 0.2 to 0.5 part of a silane coupling agent; 0.1 to 0.5 part of an antioxidant; 0.05 to 0.3 part of a light stabilizer; wherein the modified polyolefin resin is obtained by grafting and modifying polyolefin resin through long-chain alkyl acid ester; considering the two aspects of controlling the crystallinity and increasing the cooling speed, long-chain alkyl acid ester is used for carrying out graft modification on existing polyolefin, so that the branched chain density of resin is improved, the crystallinity of an adhesive film is reduced, transparent high-thermal-conductivity single-layer g