What is the difference between PE protective film and PE release film?
Dec 22, 2021
First of all, the use, PE protective film is used for the initial and factory protection of the surface of electronic products, while the PE release film is a disposable consumable used for the protection of production raw materials and the discharge of waste in the manufacturing process.
The biggest advantage of PE protective film is that the protected product is not polluted, corroded, scratched during production, transportation, storage and use, and protects the original smooth and shiny surface, thereby improving the quality and market competitiveness of the product. .
PE release film is the most widely used polymer material in the world today. It is polymerized by ethylene. PE release film is divided into high-density polyethylene, medium-density polyethylene and low-density polyethylene. Low-density polyethylene is relatively soft, and it is mostly used for high-pressure polymerization; high-density polyethylene has the characteristics of rigidity, hardness and mechanical strength, and it is mostly used for low-pressure polymerization. High-density polyethylene can be used as containers, pipes, and high-frequency electrical insulating materials for radar and television.
Low-density (high-pressure) polyethylene is usually used in a larger amount. Polyethylene is waxy and has a smooth feel like wax. When it is not dyed, low-density polyethylene is transparent, while high-density polyethylene is opaque. Polyethylene is composed of repeated -CH2-units through the addition and polymerization of ethylene. Highly polymerized chain formed by connection. The performance of polyethylene depends on its polymerization method. High-density polyethylene is produced by Ziegler-Natta polymerization under medium pressure (15-30 atmospheres) catalyzed by organic compounds. If it is under high pressure (100-300MPa), high temperature (190-210 C), and peroxide catalyzed by free radical polymerization, low-density polyethylene is produced.
