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How does PE protective film prevent static electricity?

by:LINYANG     2020-02-21
PE protective film is the most simple structure of Polymer organic compounds, the most widely used polymer materials in the world today. PE protective film with special polyethylene (PE) Plastic film for the substrate, according to the density of different divided into high density polyethylene protective film, medium density polyethylene and low density polyethylene. So, how does PE protective film achieve the function of anti-static adsorption? There are mainly two reasons as follows: ① it has corona treatment in the process of film making, which increases the surface area of the film and carries static electricity to meet the needs of gluing later, it is conducive to the combination of glue and film. (2) PE electrostatic film without glue is made of EVA material in the inner layer of the film, which has adsorption function. The casting machine of multi-layer Film blowing machine can make this product at one time. At present, there are about three kinds of PE protective films: water-based and oil-based pressure-sensitive glue with glue, and another is an electrostatic film without glue! At the same time, there are two kinds of electrostatic films, one is mainly produced by machine mode, the other is produced by co-extrusion film blowing machine, and the other is produced by co-extrusion casting machine. Their electrostatic formula components are also different, the quality and price of the products are also different. The electrostatic film with low price and low grade will transfer the electrostatic components to the surface of the product, resulting in poor products and scrapping.
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