Plastic Particles GF20 Reinforced Flame Retardant Glass Fiber Reinforced 20% Composite PBT

The Chinese name of PBT is polybutylene terephthalate, or saturated polyester for short, which is a highly crystalline
thermoplastic plastic.

advantage:

1. The mechanical properties are stable, and the tensile strength and tensile modulus are similar to those of nylon;

2. The friction coefficient is small and self-lubricating;

3. Low water absorption;

4. Excellent electrical properties;

5. Good size stability;

6. Excellent chemical resistance and oil resistance.

Polybutylene terephthalate (PBT) is a thermoplastic engineering polymer that is used as an insulator in the electrical and electronics industries. It is a thermoplastic (semi-)crystalline polymer, and a type of polyester. PBT resists solvents, shrinks very little during forming, is mechanically strong, is heat-resistant up to 150 °C (or 200 °C with glass-fibre reinforcement), and can be treated with flame retardants to make it noncombustible. It was developed by Britain's Imperial Chemical Industries (ICI).
PBT is closely related to other thermoplastic polyesters. Compared to PET (polyethylene terep-hthalate), 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 60 °C (140 °F). 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.