in the context of sustainable development, the bottle-grade pet industry has huge room for development
pet, or polyethylene terephthalate, is the esterification polymerization product of pta and meg. it is a colorless, transparent or milky white highly crystalline polymer. according to different forms, pet can be divided into bottle-grade pet, fiber-grade pet, and film-grade pet. the main product of bottle-grade pet is pet plastic bottles, which are widely used in…

