Polyethylene English name: polyethylene, referred to as PE, is a thermoplastic resin obtained by polymerization of ethylene. In industry, it also includes copolymers of ethylene and a small amount of α-olefins. Polyethylene is odorless, non-toxic, feels like wax, has excellent low temperature resistance (the lowest operating temperature can reach -70 ~ -100 ° C), good chemical stability, and can withstand most acid and alkali erosion (not resistant to oxidation properties) acid), insoluble in general solvents at room temperature, low water absorption, excellent electrical insulation properties