PPSU is an amorphous thermoplastic with high transparency and high hydrolytic stability. Articles can withstand repeated steam sterilization. PPSU, scientific name: Polyphenylene sulfone resins (Polyphenylene sulfone resins) PPSU polyphenylene sulfone resins are polysulfone (Polysulfone) referred to as PSF series products. It is a novel thermoplastic engineering plastic, which refers to a polymer compound containing a sulfone group and an aromatic nucleus in the main molecular chain, and is non-crystalline.
Basic properties It is a slightly amber linear polymer. Except for strong polar solvents, concentrated nitric acid and sulfuric acid, it is stable to common acids, alkalis, salts, alcohols, aliphatic hydrocarbons, etc. Partially soluble in ester ketones `aromatics, soluble in halocarbons `DM. Good rigidity and toughness, temperature resistance, thermal oxidation resistance, excellent creep resistance, corrosion resistance to inorganic acids, alkalis, salt solutions, ion radiation resistance, non-toxic, good insulation and self-extinguishing properties, easy to form and process Preparation Preparation method: Composed of the basic resin prepared by the reaction of p-polyphenylene sulfide and peracetic acid Wide range of uses: 1. It is suitable for making heat-resistant parts, insulating parts, wear-reducing and wear-resistant parts, instrumentation parts and medical equipment parts. Polyarylsulfone is suitable for making low-temperature working parts. 2. Polysulfone is commonly used in the electronic and electrical industry to manufacture integrated circuit boards, coil tube frames, contactors, sleeve frames, capacitor films, and high-performance alkaline battery casings. 3. Polysulfone is used in household appliances for microwave oven equipment, coffee heaters, humidifiers, hair dryers, cloth steamers, beverage and food dispensers, eating and drinking tableware, water cups, milk bottles, etc. It can also replace non-ferrous metals for precision structural parts such as clocks, copiers, and cameras. 4. Polysulfone has passed the relevant specifications in the fields of medicine and food in the United States, and can replace stainless steel products. Due to the characteristics of polysulfone, such as steam resistance, hydrolysis resistance, non-toxicity, high temperature steam sterilization resistance, high transparency, and good dimensional stability, it can be used as surgical tool trays, sprayers, fluid controllers, heart valves, pacemakers, gas masks, Braces, etc. Because PPSU is a safe material, it does not contain endocrine-disrupting carcinogenic chemicals (environmental hormone: bisphenol A), and as a heat-resistant material, the heat-resistant temperature is as high as 207 degrees. Because it can be boiled repeatedly at high temperature, it can be sterilized by steam. It has excellent drug resistance and acid and alkali resistance, and can withstand general liquid medicine and detergent cleaning without chemical changes. Lightweight and drop-resistant, it is the best in terms of safety, temperature resistance, hydrolysis resistance and impact resistance. But the price is relatively expensive. 
Related Products Properties and Applications of Sulfone Resin Polymers (PSF/PSU/PES/PASF) 1. Features a. Sulfone resin is an amorphous thermoplastic: high degree of transparency; High hydrolytic stability: the product can withstand repeated steam sterilization (lifetime is at least 12 years under steam at 145°C); b. Rigidity and toughness: It can maintain physical, mechanical and electrical properties in a wide range. c. Continuous use temperature: PSF (PSU): 140°C; PES: 180°C; d. It has unique flame retardancy, low smoke emission and chemical resistance. It also has high melt viscosity during processing, and it is easy to produce products with uniform properties. 2. Application Sulfone resin is mainly used in electronics, food appliances, dairy processing equipment and some daily necessities, automobiles, aviation, medical and general industrial sectors to make various contactors, connectors, transformer insulation parts, thyristor caps, and insulating sleeves , Coil bobbins, terminal posts, printed circuit boards, shaft sleeves, covers, TV system components, capacitor films, brush holders, alkaline battery boxes, wire and cable coatings. Sulfone resin can also be used as protective cover components, electric gears, battery covers, internal and external parts of aircraft, external protective covers of spacecraft, camera baffles, lamp parts, and sensors. Replace glass and stainless steel for steam dishes, coffee containers, microwave cookers, milk containers, milking machine parts, beverage and food dispensers. In terms of sanitary and medical equipment, there are surgical trays, sprayers, humidifiers, dental equipment, flow controllers and laboratory equipment, as adhesives with high bonding strength for dental inlays, as pump covers and tower protection in chemical equipment layers, acid-resistant nozzles, pipes, valve containers, etc. my country's polysulfone resin is mainly used in medical equipment, food processing machinery, electronic instruments and textiles. Injection molding process Since the performance and application level of modified polysulfone vary greatly, and its processing technology varies greatly, the following range should be adjusted accordingly: 1. Drying: 90℃-110℃/3-4Hr 2. Injection temperature: 260-280°C
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