The White Opaque PET film is often heard in everyday life, but few people know how to identify its quality. White Opaque PET film is a White or light yellow high crystalline polymer, with fatigue resistance, good friction performance, less wear, high hardness, and thermoplastic maximum toughness. There are several ways to judge whether the White Opaque PET film is good or bad:
1. Smell, the White Opaque PET film smells different from plastic, and when it burns with a lighter, it smells very nice and comfortable, but if it contains other impurities, the smell is very pungent.
2. Wire drawing, White Opaque PET film after burning, pull the wire on the lighter to see how long it is, and then break the pull out of the wire to see if the breakpoint in the middle is rolled into a small circle, the larger the volume, the higher the melting point.
3. Burn. Look at the charred parts of the White Opaque PET film. If the color is too dark or the oil drips too fast, most of the melting points are abnormal.
A more practical and better way is to use an oven and bake for half an hour at 250 degrees Celsius. If the White Opaque PET film contains PVC, there will be a lot of yellow spots on the surface, if the material is not good, there will not be enough melting point, and it will melt quickly.
Learn to identify the White Opaque PET film, and you can easily find high-quality goods. Of course, it is also important to find the right manufacturer to supply high-quality PET plastic sheets.