In the daily use process we can find some surface plastic protection film in the use of the surface of the protection of residual pressure-sensitive adhesive, and not easy to remove. Therefore, this problem has to make the production and use of plastic protection film manufacturers more difficult residual rubber problem, not only affects the appearance, and caused the material pollution, then why the plastic protection film will appear this problem? What causes it? The following plastic protection film manufacturers for you to tell about.
There are usually three types of plastic protection film residue:
1. Cohesion failure: there are pressure-sensitive adhesives on the protected surface and the substrate, and the coating surface of the plastic protection film loses luster;
2. Destruction of adhesive base: there are many rubber residues on the protected surface, and the substrate can be seen on the surface of plastic protection film coating;
3. Transfer residue: a small amount of pressure-sensitive glue remains on the protected surface, and the coating surface of the plastic protection film maintains a good luster.
Surface plastic protection film degumming: one common reason is the plastic protection film of the peel strength after a period of time has changed, protected material with a plastic protection film, after going through a period of time to off, short only a few minutes, and long in more than one year, mostly in 3 ~ 12 months, during this period, plastic protection film of the peel strength tends to increase as time continues, is usually fast and slow, after stabilization. When the peel strength rises to exceed the cohesion strength or adhesive base force, cohesion failure or adhesive base failure will occur, resulting in residual adhesive.
Another reason is the aging of the plastic protection film, which is composed of plastic substrate and pressure-sensitive adhesive, both of which belong to the high polymer. The aging mechanism mainly includes thermal aging and ultraviolet aging. When the plastic protection film is aged, the macromolecular chains forming the substrate and the pressure-sensitive adhesive are broken, the average molecular mass is reduced, the cohesive strength is reduced, and the cohesive failure occurs.
In the sheet bending process of the stretching effect, in the stretching process is easy to cause the destruction of the adhesive base, this situation is also easy to appear residual glue. The plastic protection film will also be affected by the temperature, in the low-temperature environment or quickly opened the plastic protection film, it is easy to cause cohesion damage, residual glue.
With the passing of time, due to the compatibility phenomenon between the pressure-sensitive adhesive and the protected surface, the two gradually fuse, resulting in the increase of peel strength, resulting in cohesion damage or adhesion damage; Or some small molecular substances in the pressure-sensitive adhesive layer are compatible with the protected surface, so as to migrate from the pressure-sensitive adhesive to the protected surface, resulting in migration residue. For example, acrylate paint surface plastic protection film, which is acrylate pressure-sensitive adhesive plastic protection film is very easy to occur residual rubber occasions. Additional, when floor paint is not dry, affix plastic protection film, remnant glue phenomenon also is easy to happen.
The above is the PE surface plastic protection film manufacturers to explain the plastic protection film residual glue solution of the relevant content if you want to learn more information, welcome to enter our official website for detailed understanding!