PET protective film is widely used due to the properties of the PET protective film material.
The PET protective film material is transparent and colorless, and its surface has undergone a tough treatment. Ordinary PET protective film materials have a tough surface value between 3H-4H depending on the place of origin. The harder the surface, the stronger its wear resistance, and light transmittance is also an important property of PET protective film materials. Ordinary light transmittance is above 90%, and high light transmittance not only provides us with a good visual effect when using related instruments, but also has a good protective benefit for the eyes.
Analysis of 1PE: PE, also known as Polyethylene, is a polymer organic compound with a very simple layout. In today’s world, a wide range of polymer materials are used for protective films. PE protective films are made of extra polyethylene (PE) plastic film as the substrate, and are divided into high-density polyethylene protective films, medium density polyethylene, and low-density polyethylene according to density differences.
The benefits of 2PE: The great advantage of PE protective film is that the protected product is not contaminated, corroded, scratched during production, transportation, storage, and use, protecting the original smooth and shiny surface, thereby improving the quality and market competitiveness of the product.
Classification characteristics of 3PE protective film: The important raw material is LLDPE, which is relatively soft and has certain stretchability.
The adhesion between the PE protective film and the maintained product is not strong enough, and there is a situation of falling off during the entire process of transportation and use. The reason for these problems with the PE protective film is exactly the opposite. The higher probability is that the polyurethane resin used in the manufacturing of the protective film product has insufficient viscosity. Another probability is that the pressure machine used by the customer during the pasting process is insufficient, or the surface of the profile is not cleaned neatly, with dust or paint, which endangers the actual effect of the adhesive. If this problem occurs, targeted treatment is needed to increase the working pressure of the glass film by removing and replacing the sensitive adhesive, or to pay attention to the reasonable and effective cleaning of the surface of the profile during the glass film process to prevent such problems. It happened.
After a period of use, the protective film mainly performs well in the middle, but the wings on both sides are raised. The primary factor that causes this situation is that the protective film has a relatively high level of adhesion during the entire bonding process with the maintained profile. After bonding, it undergoes excessive shrinkage when exposed to high temperature natural environment. This problem often occurs in products of users in southern regions. Therefore, PE protective film needs to pay attention to the harm of natural environment temperature difference to product application during the production process, and avoid many unnecessary surface adhesion during the bonding process.
Although PE protective film products can be reasonably peeled off, the main manifestation is the residual protective film on the surface of the profile. This problem often occurs in some low-level protective film products. This is due to the bonding effect of the protective film when it is well integrated with the maintained profile and exposed to suitable natural environments such as sunlight and moisture.