Advantages and Disadvantages of PBT Plastic Materials

September 26, 2025

Advantages:

Excellent mechanical properties with high rigidity and hardness
Good heat resistance, with a heat distortion temperature exceeding 180°C
High-gloss surface finish, suitable for unpainted electronic and electrical products
Fast crystallization, good flowability, and excellent molding properties
Low thermal expansion and shrinkage, ensuring dimensional stability
Resistance to chemicals, solvents, and weathering
High dielectric strength and good electrical insulation
Low water absorption, minimizing effects on electrical and dimensional properties

Disadvantages:

Susceptibility to decomposition in strong acids, alkalis, or steam due to ester bonds in its molecular structure
Notch sensitivity and potential brittleness under certain conditions

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