Polysulfone is abbreviated as PSF. It is a thermoplastic resin containing chain links in the main chain of the molecule. It is a light brown and transparent amorphous resin. Two kinds of sulfone and polyethersulfone. Main features: Excellent mechanical properties, high rigidity, wear resistance, high strength, and maintaining excellent mechanical properties even at high temperatures are its outstanding advantages. Its range is -100 ℃ ~ 150 ℃, long-term use temperature is 160 ℃, short-term use temperature is 190℃, high thermal stability. Hydrolysis resistance, good dimensional stability, low molding shrinkage, non-toxic, radiation-resistant, flame-resistant, and extinguishing. It has excellent electrical properties in a wide temperature and frequency range. Good chemical stability, in addition to concentrated nitric acid, concentrated sulfuric acid, halogenated hydrocarbons, it can withstand common acids, alkalis, and salts, and swell in caves and esters. Industrial applications: Electronic and electrical fields: PSU can be used to make various contactors, contacts, transformer insulation parts, thyristor caps, insulating sleeves, coil bobbins, terminals and electric rings and other electrical parts, printed circuit boards, bushings, covers, Film and television system parts, capacitor films, brush holders, alkaline battery boxes, etc. Automobile and aviation fields: PSU is suitable for the production of protective cover components, electric gears, battery covers, detonators, electronic ignition device components, lighting components, aircraft internal and external parts, and outer protective covers of aerospace vehicles. In addition, PSU can also make illuminator baffles, electric transmissions, and sensors. In the kitchen supplies market: PSU products include steam dinner plates, coffee containers, microwave cookers, milk and agricultural products containers, egg cookers and milking parts, beverage and food dispensers, etc. In terms of food packaging, PSU can be used in a variety of containers, making use of its good microwave permeability characteristics to make microwave utensils. In addition, PSU can also be used as a connecting pipe. The outer layer of the pipe has high strength and the inner layer is chemical-resistant. It is lighter and transparent than steel pipes and is easy to monitor. It is often used in the food industry and for making lampshades for strong light lamps. Hygiene and medical fields: PSU fully meets the hygienic requirements, can withstand repeated steam sterilization at 130°C, and can be used for sanitary and medical equipment to replace stainless steel, aluminum, etc. to reduce costs. The medical devices that can be made by PSU include: surgical trays, sprayers, warmers, contact lens fixtures, flow controllers, instrument covers, dental instruments, pacemakers, respirators, etc. Medical products made of PSU are low in cost and not easy to break, so they are used in instrument housings, dental instruments, heart valve boxes, blade cleaning systems, soft contact lens forming boxes, micro filters, dialysis membranes, etc. It can also be used for dental implants, and its strength is twice as high as polyacrylate. Daily necessities application field: The daily necessities made by PSU are mainly heat-resistant and hydrolysis-resistant products, such as humidifiers, steam irons, camera boxes, projector components, etc. Industrial applications: PSU can manufacture adhesives, coatings, and various chemical processing equipment, including pump covers, tower outer protective layers, food processing equipment, pollution control equipment, dairy processing equipment and engineering, construction, chemical pipelines, etc.