Woven Bags Type
Overseas production of the main raw material for polyethylene (PE), domestic production is mainly for polypropylene (PP) is a thermoplastic resin prepared by polymerization of ethylene. In the industry, including vinyl and also a small amount of alpha-olefin copolymer. Polyethylene no smelly, nontoxic, feel like wax, has excellent of resistance low temperature performance (minimum using temperature can up -70~-100 ℃), chemical stability good, ability most acid alkali of erosion (not resistance has oxidation nature of acid), at room temperature Xia not dissolved Yu General solvent, absorbent small, electric insulation performance excellent; but polyethylene for environment stress (chemical and mechanical role) is is sensitive of, heat aging sex poor. Properties vary depending on the variety of polyethylene, depends on molecular structure and density. Using different production methods can have different densities (0.91~0.96g/cm3) of the product. Polyethylene thermoplastic molding methods that are available (see plastic processing) processing. A wide range of uses, mainly used to make films, containers, pipes, monofilaments, wires and cables, and other daily necessities, and can be used as a television, radar and other high frequency insulating material. With the development of petrochemicals, polyethylene production developed rapidly, production accounting for about 1/4 of plastics production. 1983 world total production capacity of polyethylene 24.65Mt, installed capacity of 3.16Mt under construction.