Uses of Pet Protective Film Materials

PET material was developed by the United States DuPont in the early 1970s and was mainly used in industry at the beginning. For example, the Coca-Cola plastic bottle we see today is made of PET.

Uses: Surface protection of mobile phones and other electronic products, glass surface protection and heat insulation, UV protection, etc.

Because the PET material has the advantages of light weight, high strength, good transparency and gas barrier properties, non-toxicity and tastelessness, it has developed rapidly. Since the 1990s, the production and application of plastic packaging materials have sprung up, and then with the maturity of touch technology, PET materials have naturally been used on various LCD displays, which is today's PET protective film!

Chemical structure: The full name of PET is polyethylene terephthalate, which is made by the condensation polymerization reaction of terephthalic acid and ethylene glycol.

Properties of PET protective film:

The PET protective film material is transparent and colorless, and the surface has undergone a hardening treatment. Generally, according to the origin of the PET protective film material, the surface hardening value is between 3H-4H. The better the surface hardening, the stronger the wear resistance. The light transmittance is also the main property of the PET protective film material. Generally, the light transmittance is above 90%. The high light transmittance not only makes us have a good visual effect when using related instruments, but also has a good effect on the eyes. Protection. In the market, Japan ’s PET protective film material is relatively excellent, followed by Taiwan and South Korea.

Pet Protective Film

Type: PET protective film materials such as high permeability, matte, diamond, anti-peep, radiation, fingerprint, mirror, etc. It is reported that a watch PET protective film is being developed, which mainly has 3D effects when watching 3D movies!

Quality problem: Rainbow pattern is a problem often encountered in PET protective film materials, because the surface of the PET protective film material is subjected to hardening treatment, and hardening is subjected to high temperature treatment, so colored stripes will be formed on the surface of the material.

The crystal point is also a common quality problem for PET protective film materials. The crystal point refers to those small pits on the surface of the protective film material, and some people call it bright spots. It is mainly common on three-layer PET protective film materials. The main reason is that the silicone film is used for synthesis. Silicone has fluidity. If the surface of the protective film material is extruded by some small particles, it will form crystal points to avoid crystal points. The best way is to protect the surface of the protective film!