Vacuum blister machine blister material polyethylene identification

Polyethylene materials are difficult to print (unless bulk modification or surface modification is performed), so they are mostly colorless or light-colored products. Of course, due to its good environmental aging resistance, artificial turf on sports fields are mostly made of polyethylene. The easiest way to identify it is to light a small piece of the sample with a gas flame (such as a lighter), which will continue to burn with smoke and a burning candle odor. Scratch it with your fingernail, the scratched is low-density polyethylene (LDPE), otherwise it is high-density polyethylene (HDPE).