#|A|B|C|D|E|F|G|H|I|J|K|L|M|N|O|P|Q|R|S|T|U|V|W|X|Y|Z Index  

PBT - short version

Polybutylene terephthalate.

PBT - long version

Polybutylene terephthalate (PBT) is a plastic that is used as an insulator in the electrical and electronics industries. It is a thermoplastic crystalline polymer, and a type of polyester. PBT is resistant to solvents, shrinks very little during forming, is mechanically strong, heat-resistant up to 150°C (or 200°C with glass-fibre reinforcement) and can be treated with flame retardants to make it noncombustible.

PBT is closely related to other thermoplastic polyesters. Compared to PET (Polyethylene terephthalate), PBT has slightly lower strength and rigidity, slightly better impact resistance, and a slightly lower glass transition temperature. PBT and PET are sensitive to hot water above 60C (140F). PBT and PET need UV protection if used outdoors, and most grades of these polyesters are flammable, although additives can be used to improve both UV and flammability properties.


IQ Catch Banner


Definition in Chinese | Definition in French | Definition in Italian | Definition in Spanish | Definition in Dutch | Definition in Portuguese | Definition in German | Definition in Russian | Definition in Japanese | Definition in Greek | Definition in Turkish | Definition in Hebrew | Definition in Arabic | Definition in Swedish | Definition in Korean | Definition in Hindi | Definition in Vietnamese | Definition in Polish | Definition in Thai