Polyester bottle polyester principle

Polyester, a general term for polymers obtained by polyol and polyacid condensation. Mainly refers to polyethylene terephthalate (PET), and customarily also includes linear thermoplastic resins such as polybutylene terephthalate (PBT) and polyarylate. It is a class of engineering plastics with good performance and wide use. It can also be made into polyester fibers and polyester films. Polyesters include polyester resins and polyester elastomers. Polyester resins also include polyethylene terephthalate (PET), polybutylene terephthalate (PBT)) and polyarylate (PAR). Polyester elastomers (TPEE) are generally polymerized from dimethyl terephthalate, 1,4-butanediol and polybutanol, and the segments include hard segment parts and soft segment parts, which are thermoplastic elastomers.