Poly(butylene terephthalate) CAS#26062-94-2
Excellent Mechanical Strength: Polybutylene terephthalate (PBT) offers high mechanical strength, providing excellent durability and structural performance for demanding engineering applications.
Outstanding Chemical Resistance: PBT exhibits strong resistance to various chemicals, ensuring stable performance and long-term reliability in harsh environments.
Superior Electrical Insulation Properties: With excellent electrical insulation capabilities, PBT is widely suitable for electronic and electrical components requiring reliable safety and performance.
High-Performance Engineering Plastic: As one of the five major engineering plastics, PBT combines good processability, crystalline structure, and stable physical properties, making it ideal for automotive, electronics, and industrial applications.
Products Description of Polybutylene Terephthalate (PBT) CAS#26062-94-2
Polybutylene terephthalate (PBT) is a crystalline thermoplastic polyester resin produced through the condensation polymerization of terephthalic acid and 1,4-butanediol. As one of the five major engineering plastics, PBT has the molecular formula (C₁₂H₁₂O₄)n and the CAS number 26062-94-2.
It appears as milky white or pale yellow translucent to opaque granules with a glossy surface and a density ranging from 1.31 to 1.55 g/cm³. PBT is characterized by its excellent mechanical strength, outstanding chemical resistance, and superior electrical insulation performance, making it suitable for a wide range of engineering and industrial applications.
| English Name | Poly(butylene terephthalate) |
| English Synonyms | terephthalicacid-tetramethyleneglycolpolymer;tetramethylenediol-terephthalicacidpolymer;tetramethylene glycol-terephthalicacidpolymer;Thermocomp WC-1006;Ultradur B 2550;Ultradur B 4300 G10;Ultradur B 450 0;Ultradur KR 4001 |
| CAS Number | 26062-94-2 |
| Molecular Formula | C12H1606 |
| Molecular Weight | 256.25 |
| EINECS Number | 607-857-5 |
| Melting point | 226 °C |
| Density | 1.31 g/mL at 25 °C(lit.) |
| Storage conditions | -70°C |
| Form | granular |
| Biological origin | human |
| Specific Activity | 6-8nmol/min-mg |
| Cosmetic ingredients and efficacy | Viscosity control Film-forming agent |
| InChl | InChI=1S/C8H604.C4H1002/c9-7(10)5-1-2-6(4-3-5)8(11)12;5-3-1-2-4-6/h1-4H,(H,9,10)(H,11,12);5-6H,1-4 H2 |
| InChIKey | PCVVBHUFWPHCAL-UHFFFAOYSA-N |
| SMILES | C(C1C=CC(C(=O)O)=CC=1)(=O)O.C(CO)CCO |
Polybutylene terephthalate (PBT) resin is widely applied in structural parts across various industries, including automotive, electronics, electrical appliances, machinery, and instrumentation. Glass fiber-reinforced PBT combined with flame retardants is extensively used in flame-resistant components, such as television transformer frames and bases, as well as connectors and switches for different electrical devices.
PBT can also be blended with other polymers to form high-performance plastic alloys. The automotive sector represents its largest application market, where these materials are used for components such as bumpers and ignition system parts. In addition, PBT-based alloys are increasingly utilized in the food industry, including the production of microwave oven heating containers due to their excellent performance and temperature resistance.
