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The difference between PE protective film and PE release film

Author: Hou

Sep. 15, 2022

26 0 0

Tags: Rubber & Plastics

In our industry, we often talk about PE protective film or PE release film. Many friends who have just come into contact with PE protective film can't figure out the difference between PE release film and PE protective film. In fact, as long as they are distinguished according to their use, they can clearly understand the difference. The pe protective film can be used as the initial and factory protective material for the surface of electronic products, and the pe release film can be used as a protective material for the production of raw materials and a disposable consumable for emissions during the production process. What is the difference between PE protective film or PE release film?

The biggest advantage of pe protective film is that it protects products from pollution, corrosion, scratches, and protects the original surface during production, transportation, storage, and use, and improves product quality and market competitiveness.

PE release film is currently the most widely used polymer material in the world. It is polymerized by ethylene. Its release film can be divided into high density PE, medium density PE and low density PE. LDPE has good softness and is mostly used for high-pressure polymerization; high-density pe has the characteristics of high rigidity, high hardness, and good mechanical strength, and is mostly used for low-pressure polymerization.

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PE protective film for stainless steel 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. The main application is usually low density (high pressure) pe. When there is no dyeing, low-density pe is waxy and has a smooth feel similar to wax, while high-density pe is opaque. Pe is a high-polymer chain formed by polymerization of multiple -CH2=CH2 units through ethylene addition reaction. The properties of PVC depend on its polymerization method; Ziegler-Natta polymerizes high-density pe (HDPE) under medium pressure (15-30 atmospheres) organic compound catalyzed conditions.

Under these conditions, the polymerized pe molecule is linear, with a long molecular chain and a molecular weight of hundreds of thousands. Under high pressure (100-300MPa), high temperature (190-210C), and hydrogen peroxide catalyzed by free radical polymerization, low density pe (LDPE) is obtained, which has a branched structure.

In addition, the PE release film is coated with a release agent, which is non-sticky, and sticky objects cannot be stuck on it. It is mainly used to isolate double-sided tape and label bottom paper, while the NB PE protective film is coated with low-viscosity glue. Viscosity but still has a certain viscosity, used to protect the surface of the material.more

 


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