High-density polyethylene (HDPE) has good heat resistance and cold resistance

High-density polyethylene (HDPE) has good heat resistance and cold resistance, good chemical stability. It also has high rigidity and toughness, and good mechanical strength. The barrier properties, dielectric properties and environmental stress cracking resistance are also good. , widely used in blow molding products, film and sheet products, injection molding products, pipe products, fibers, wires and cables and other fields. At present, it is the third-largest general-purpose plastic in the world, second only to polyvinyl chloride and polypropylene.