PPSU injection mold parts

PPSU special injection molding is a kind of injection molding process using PPSU (polyphenylsulfone resin) material.PPSU is a kind of high-performance engineering plastics with excellent heat resistance, chemical stability and mechanical properties. Its unique characteristics make it has a wide range of application prospects in many fields.

 

The main features of PPSU special injection molding are high-temperature processing and high viscosity.The melting temperature of PPSU is up to 343, and the heat distortion temperature is between 200-220, so it needs special high-temperature injection molding machine to process. In addition, PPSU has long molecular chains and strong intermolecular forces, resulting in higher viscosity and poorer fluidity, which requires higher injection pressure during the injection molding process. However, PPSU's low coefficient of thermal expansion (about 1.2x10-5/) allows for less dimensional change during temperature changes, helping to maintain product dimensional stability.

 

The advantage of PPSU special injection molding lies in its excellent chemical resistance and electrical properties.PPSU is able to resist a wide range of acids, alkalis, salts and other chemicals, which makes it very suitable for applications in chemical, petroleum, pharmaceutical and other fields. At the same time, PPSU has a high dielectric constant and loss angle tangent, which makes it ideal for electrical insulation materials. In addition, PPSU also has good flame retardant properties, which can be widely used in the field of electronic and electrical appliances.

 

Overall, PPSU special injection molding is a special injection molding process for high-temperature, high-viscosity materials, which can produce products with excellent heat resistance, chemical stability and mechanical properties, and is suitable for high-end application needs in a number of industries.