Why Can Thermoplastic Polyester Be Used As A Material For Push-in Terminal Blocks?

Thermoplastic polyester possesses excellent rigidity and hardness, with a flexural strength of 148-310 MPa and an elastic modulus of 4000 MPa. This means that push in type terminal block can maintain long-term dimensional stability when subjected to frequent insertion and removal operations and mechanical stress. The creep resistance, fatigue resistance, and abrasion resistance of polyester materials ensure that push in terminal block wire connector is not prone to permanent deformation during repeated use.

push connector block requires operation in complex temperature environments. Thermoplastic polyester has a glass transition temperature of 80°C and a long-term operating temperature of up to 120°C, maintaining its performance even after short-term immersion in a 250°C solder bath. It has excellent electrical insulation properties, maintaining stable and reliable electrical performance even under high temperature and high frequency conditions, meeting the stringent requirements of electronic and electrical applications.

Thermoplastic polyester is suitable for various processing techniques such as injection molding and extrusion. Its moderate viscosity and good flowability in the molten state allow for faster injection speeds and relatively lower pressures. By adding nucleating agents and crystallization promoters, combined with glass fiber reinforcement, the rigidity and heat resistance of push fit connector block can be improved while reducing manufacturing costs.