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Analysis of colloidal material properties of PE blue protective film
- Nov 10, 2018 -

When producing a PE blue protective film, the quality of the selected colloid is very important. In fact, whether the quality of the protective film is good or not depends mainly on the characteristics of the colloid. There are two types of pressure-sensitive adhesives for protective films: solvent-based polyacrylate adhesives and water-soluble polyacrylate adhesives, which have different characteristics.


First, let's take a look at the characteristics of solvent-based polyacrylate glue: this gel is very transparent, has low initial tack and is very resistant to aging for up to 10 years. Since the polyacrylate adhesive is hard and has poor fluidity, the adhesion of the PE blue protective film is relatively slow at this time. Even after the pressure, the colloid and the surface to be attached are not sufficiently contacted, and after 30 to 60 days, it will be sufficient. Contact the surface to be attached to achieve the final tack.


The water-soluble polyacrylate glue is mainly used for water dissolution, and should be kept in contact with water vapor as much as possible to avoid residual glue. Since the water-soluble polyacrylate adhesive is environmentally friendly and does not require a solvent recovery device, this colloid is usually used to produce a PE blue protective film.