Corona principle of PE heat shrinkable film

PE heat shrinkable film manufacturers brief you on the corona principle of heat shrinkable film: use high-frequency and high-voltage corona discharge on the treated plastic surface to generate low-temperature plasma, which causes free radical reaction and polymerization on the plastic surface Cross-linking. The surface becomes rough and increases the wettability to polar solvents. The ion body destroys the molecular structure by electric shock, penetrates into the surface of the printed body, oxidizes and polarizes the molecules on the surface to be treated, and performs ion bombardment erosion on the surface. Increase the adhesion of the substrate surface. After corona treatment, compared with the cross-linked structure of the inner layer, the cross-linked structure of the plastic surface layer is reduced, so the surface layer function has a greater mobility. The above is about the corona of PE heat shrinkable film. I hope the contents of the corona can bring you some help. Users are welcome to come to our factory for purchase guidance, and pay attention to the company's official website in time for more consultation. Next: The cause of corona of polymer protective filmPrevious: The difference between PET release film and PET protective film