The granulation temperature of polysulfone is 175°C, it can be used for a long time between -100°C and 150°C, and it has excellent aging resistance at high temperatures. Polysulfone is a thermoplastic resin containing sulfone groups (-SO2-) and arylene groups in the main chain of the molecule. The English name is Polysulfone (referred to as PSF or PSU). There are ordinary bisphenol A-type PSF (commonly known as polysulfone), There are three types: polyarylsulfone and polyethersulfone. PSF is mainly used in electronic and electrical, food and daily necessities, automotive, aviation, medical and general industry sectors to produce various contactors, connectors, transformer insulation parts, thyristor caps, insulating sleeves, coil bobbins, and terminal posts. , printed circuit boards, bushings, covers, TV system parts, capacitor films, brush holders, alkaline battery boxes, wire and cable coverings.