For recycled materials, high-temperature PET and low-temperature PET can be separated by the naked eye or by some simple methods, such as melting point tester.
When the ignition is burning, the wire is pulled and the wire is pulled off after being elongated. If the broken wire can be wound into several rolls, the melting point is normal, and the more the description is, the higher.
In addition, when igniting, if it melts quickly, it means that the melting point is low, and the burnt bottle flakes become very dark, indicating that the melting point is low, and if the taste smells particularly sweet, the melting point may be low. .
1, first smell, PET tastes different from ordinary plastic. Burn it with a lighter, and then smell a very aromatic and comfortable smell (just burn a bottle to smell it). If the PET contains other ingredients, the taste is very pungent. There is a bottle containing SEBS ingredients that cannot be used.
2, look at the burning part, if the distribution of black or oil droplets is very fast, most of the melting point is not normal, which is often found in PET film.
3, drawing, when burning, pull the wire on the lighter, see the length of the wire is not long, then pull the pulled wire off, see the break point in the middle, the wire is not rolled into a small circle, the more the volume More indicates that the melting point is high. However, if it is a bottle, it should not be a big problem. The most critical point! It is to distinguish whether it contains PVC, which is a fatal injury to PET.
Others: When the ignition is burned, the wire is pulled and the wire is pulled off after being stretched. If the broken wire can be wound into several rolls, the melting point is normal, and the more the description is, the higher. In this respect, because of my lack of experience, I can't specify a few rolls to be qualified. In addition, when it is ignited, if it melts quickly, it means that the melting point is low, and the flakes of the bottle become very dark, indicating that the melting point is low, and the other is If the smell is particularly sweet, it may be that the melting point is low.
Other Machinery Parts,Construction Equipment Parts,Earthmoving Parts,Hyundai Machine Parts
JINING SHANTE SONGZHENG CONSTRUCTION MACHINERY CO.LTD , https://www.stszcmparts.com