Polysulfone (PSU) Basics of plastics

According to the different main-chain molecular structure, polysulfone plastic there can be divided into polysulfone, poly aryl sulfone and polyether sulfone. In general, polysulfone thermal deformation temperature 175 ℃, can be -100 ℃ - 150 ℃ between the long-term use, but also an excellent anti-aging properties under high temperature. PSA is a heat-resistant engineering plastic poly in one of the best varieties, the heat resistance temperature of the sentence with thermosetting polyimide match, load deformation temperature of 275 ℃, long-term use temperature of 275 ℃, at -240 ℃ - 260 ℃ to maintain good mechanical properties and electrical insulation properties. Between the performance of PES polysulfone and poly aromatic sulfone load temperature of 203 ℃ between the long-term use temperature of -100 ℃ - 180 ℃. Polysulfone plastic in humid conditions can still maintain good electrical insulation properties. Their main use are: 

mechanical: for the manufacture of watches and clocks, shell and parts, copier and camera parts, used food machinery, water valves, refrigeration system equipment, transmission parts. Polysulfone plastic PTFE or graphite added after the filler can be used to make wear-resistant high temperature load bearing, and piston rings, bearing cages, water gauges, temperature and water pump pump body, impeller and so on. 

Electronics: can be used to manufacture TV sets, audio and computer integration circuit boards, can also produce electrical and electronic equipment housings, plating tank, the scope of the casing and the coil holder, capacitor films and wires, cable coatings, various small precision electronic components. Aromatic sulfone can do C-level insulating materials used, make a variety of high temperature coil racks, switches, connectors. PES can be coil-ray tube, the coil frame, miniature capacitors. Glass fiber reinforced polyethersulfone can be used for silicon insulators, miniature potentiometer housing and integrated circuit sockets. 

Transportation: used to make the car dashboard, the sub-speed detector cover, retaining plate, ball bearing cage, engine gears, thrust ring; flight hot air duct and frame windows. 

Medical Devices: Because of its transparency and heat water, steam, and health characteristics of ethanol can be used to produce gas masks, eye contact film sterilizer, endoscopic parts, artificial heart valves, artificial dentures, etc.; PES can be made into artificial respiration machine, blood pressure checks tubes, dental mirror frame, syringes and so on. Polysulfone and polyether sulfone membrane and reverse osmosis can also be made of more than film.