What is the source material of the woven bag？

The main raw material for foreign production is polyethylene (PE), and domestic production is mainly polypropylene (PP), which is a thermoplastic resin obtained by polymerization of ethylene. In industry, it also includes copolymers of ethylene and a small amount of α-olefin. Polyethylene is odorless, non-toxic, feels like wax, has excellent low temperature resistance (minimum operating temperature can reach 70-100 ° C), good chemical stability, and can resist most acid and alkali erosion (not resistant to oxidizing acids ), insoluble in common solvents at room temperature, low in water absorption, and excellent in electrical insulation; but polyethylene is very sensitive to environmental stress (chemical and mechanical effects) and has poor heat aging resistance. The properties of polyethylene vary from variety to variety, mainly depending on the molecular structure and density.