PBT plastic is a kind of plastic mainly composed of polybutylene terehalate Poly (butylene terehalate), also known as poly (tetramethylene terehalate). PBT for short. It is a condensation polymer of terehalic acid and 1,4-butanediol. Together with PET, PBT is called thermoplastic polyester.characteristic 1. Mechanical properties: high strength, fatigue resistance, dimensional stability and small creep (little change under high temperature condition); 2. Heat aging resistance: the enhanced UL temperature index is 120 ~ 140 ℃ (outdoor long-term aging is also very good); 3. Solvent resistance: no stress cracking; 4. Water stability: PBT is not easy to separate when meeting water
