▎ 摘　　要

NOVELTY - Heat dissipating film is based on graphene dispersion and comprises polyethylene terephthalate (PET) film, heat dissipating film and release paper, where the heat dissipating film is adhered to PET film on one side, and the double side glue is attached to the other side. The heat-dissipating film is disposed on the surface of the double-sided adhesive layer with a release paper, and the PET film has a thickness of 0.02-0.05 mm, and the double-sided adhesive layer has a thickness of 0.02-0.05 mm. USE - Heat dissipating film used for notebook computer, mobile phone,television, camera, light-emitting diode (LED) lamp and heat conducting and radiating vehicle. ADVANTAGE - The heat dissipating film is prepared in a simple manner, has good flexibility, rolled storage, convenient use, and good heat-conducting radiating effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing heat dissipating film, involves: (A) obtaining two-sided adhesive with release paper on both sides by calendering, where double-sided adhesive is mainly comprises 80-95 wt.% phenolic resin, 2-5 wt.% adhesive and 1-3 wt.% carbon nanotube, and ultrasonically dispersing carbon nanotubes in the phenolic resin; (B) using graphene oxide as the matrix and zinc acetate as zinc source, preparing the heat-conducting heat-dissipating film by sol method, and using the PET film for back film strengthening; and (C) obtaining release paper by removing the double-sided tape obtained, which is back-bonded to get desired heat-dissipating film.