High-strength composite plastic film and preparation method thereof

The invention discloses a high-strength composite plastic film and a preparation method thereof, and relates to the technical field of film materials.According to the high-strength composite plastic film and the preparation method thereof, a nano reinforcing agent is introduced, and the nano reinforcing agent is subjected to surface modification treatment through chemical grafting and surface coating methods, so that the nano reinforcing agent is evenly dispersed in a basic plastic material and is tightly combined with the basic plastic material; meanwhile, the nano particles can fill up microdefects in a basic plastic material to form a more compact material structure, so that the mechanical strength of the plastic film is enhanced, the wear resistance of the plastic film is improved, the nano particles can effectively resist wear when the plastic film is used for a long time or is subjected to frictional wear, and the service life of the plastic film is prolonged. And the surface flatness and the performanc