ming wah packaging materials limited

Foshan dense bags, Foshan organ bags, Foshan large size bags, Foshan bag factory is the abbreviation of polyethylene, which is a thermoplastic resin obtained by polymerizing ethylene. In industry, it also includes copolymers of ethylene and a small amount of olefins. Polyethylene is odorless, non-toxic, feels like wax, and has excellent low-temperature resistance (the lowest operating temperature can reach ~℃). It has good chemical stability and can withstand the erosion of most acids and alkalis (it is not resistant to acids with oxidizing properties and is insoluble at room temperature). General solvents have low water absorption and excellent electrical insulation properties. However, polyethylene is very sensitive to environmental stress (chemical and mechanical effects) and has poor heat aging resistance. The properties of polyethylene vary from species to species and mainly depend on molecular structure and density. Products with different densities can be obtained by using different production methods. Polyethylene can be processed by the molding methods of general thermoplastics (see plastic processing). It is widely used and is mainly used to make films, containers, pipes, monofilaments, wires and cables, daily necessities, etc. , and can be used as high-frequency insulation materials for televisions, radars, etc.