The full name of PE protective film is polyethylene. PE protective film is the simplest polymer organic compound. It is the most widely used polymer protective film in the world. It is polymerized with special polyethylene (PE) plastic film as the substrate It can be divided into high-density polyethylene protective film, medium density polyethylene and low-density polyethylene according to different density. It has soft nature, good adhesion, easy pasting, easy peeling and no residual glue The properties of polyethylene depend on its polymerization mode; High density polyethylene (HDPE) is synthesized by Ziegler Natta polymerization under medium pressure (15-30 atmospheric pressure) catalyzed by organic compounds. PE protective film the polyethylene molecule polymerized under this condition is linear, and the molecular chain is very long, and the molecular weight is as high as hundreds of thousands. If it is free radical polymerization under high pressure (100-300mpa), high temperature of protective film factory (190 – 210 C) and peroxide catalysis, low density polyethylene (LDPE) is produced, which is branched. Polyethylene is insoluble in water and has little water absorption. For some chemical solvents, such as toluene and acetic acid, it can only be slightly dissolved at a temperature above 70 ℃. However, the protective film of particulate polyethylene can melt or solidify with the change of temperature between 15 ℃ ~ 40 ℃. When the temperature rises, it melts and absorbs heat; When the temperature decreases, it solidifies and releases heat. The protective film factory is a good building material because it has small water absorption, is not easy to be wet and has insulation performance.

The application fields of PE protective film are as follows: stainless steel plate, aluminum plate, aluminum alloy profile, plastic steel profile and doors and windows, aluminum plastic plate, fluorocarbon plate, mirror panel, sandwich color steel plate, fireproof plate, decorative panel, plexiglass plate, PS, PE, PVC plate, sunshine plate (polycarbonate plate), anti-theft door, sign, coated glass, high-grade furniture, high-grade handicrafts, electrical cabinet, computer shell, automobile lamps, floor, household appliance shell, instruments and meters, The surface of products that need to be protected in various fields can be used. The biggest advantage of PE protective film is that the protected products are free from pollution, corrosion and scratch in the process of production, processing, transportation, storage and use, and protect the original bright and clean surface, so as to improve the quality and market competitiveness of products