It is an amorphous thermoplastic with high transparency, high hydrolytic stability. The article can be subjected to repeated steam sterilization.

Introduction:

Polysulfone, referred to as PSF. It is a novel thermoplastic engineering plastic that appeared in the 1960s and refers to a polymer compound containing a sulfone group and an aromatic nucleus in the main chain of the molecule, which is non-crystalline. Understanding sulfone resin polymers (PSF/PSU/PES/PASF)

Currently there are mainly:

1. Ordinary bisphenol A type polysulfone: PSF;

2, polyethersulfone (polyaryl ether): PES;

3. Polyarylsulfone: PASF;

4. Polyether nitrile sulfone: PENS

5. Polyphenylene sulfone: PPSU

nature:

The main varieties are bisphenol A polysulfone, polyaryl sulfone, and polyether sulfone. It is often represented by bisphenol A type polysulfone. It is a linear polymer with amber color. In addition to strong polar solvents, concentrated nitric acid and sulfuric acid, it is stable to common acids, bases, salts, alcohols, aliphatic hydrocarbons, and the like. Soluble in dichloromethane, dichloroethylene and aromatics. Relative density 1.24, water absorption (24h) 0.22%, molding shrinkage 0.7%, melting temperature 190 ° C, glass transition temperature 150 ° C, heat distortion temperature (1.82 MPa) 174 ° C, continuous use temperature -100 ° C ~ +150 ° C, The tensile strength was 71.54 MPa. The bending strength is 105.8 MPa, the compressive strength is 95.1 MPa, the tensile modulus is 2.5 GPa, the notched impact strength is 6.9-7.8 kJ/m 2 , and the volume resistivity is 10e15 Ω·cm. Polysulfone material has good rigidity and toughness, excellent temperature resistance, heat oxidation resistance, excellent creep resistance, corrosion resistance to inorganic acids, alkalis and salt solutions, ion radiation resistance, non-toxicity, good insulation and self-extinguishing properties, easy molding and processing. , Preparation method: using bisphenol A and 4,4'-dichlorodiphenyl sulfone as raw materials, prepared by polycondensation reaction. Uses: Electrical, electronic, instrument, instrumentation and aerospace departments for heat, corrosion, high strength parts and insulation parts, industrial film, etc.

characteristic

Characteristics and applications of sulfone resin polymer (PSF/PSU/PES/PASF):

1. Characteristic a, sulfone resin is an amorphous thermoplastic: high transparency; high hydrolytic stability: the product can withstand repeated steam sterilization (life is at least 145 ° C steam for at least 12 years); b, rigidity And toughness: maintains physical and mechanical properties and electrical properties over a wide range. c. Continuous use temperature: PSF (PSU): 140 ° C; PES: 180 ° C; d, unique flame retardancy, low smoke and chemical resistance, high melt viscosity during processing, easy to manufacture A product with uniform performance.

application

2, the application of sulfone resin is mainly used in electrical and electronic, food appliances, dairy processing equipment and some daily necessities, automotive, aerospace, medical and general industrial sectors, making a variety of contactors, connectors, transformer insulation, thyristor cap, Insulating bushings, coil bobbins, binding posts, printed circuit boards, bushings, covers, TV system components, capacitor films, brush holders, alkaline battery boxes, wire and cable coating. The sulfone resin can also be used as a protective cover component, an electric gear, a battery cover, an internal and external parts of the aircraft, an outer shield of the spacecraft, a camera shutter, a lamp component, and a sensor. Instead of glass and stainless steel for steam plates, coffee containers, microwave cookers, milk containers, milker parts, beverages and food dispensers. Sanitary and medical devices include surgical discs, sprayers, humidifiers, dental instruments, flow controllers and laboratory instruments, adhesives for bonding high-density teeth, pump housings for chemical equipment, and protection outside the tower. Layer, acid-resistant nozzle, pipe, valve container, etc. China's polysulfone resin is mainly used in medical equipment, food processing machinery, electronic instruments and textiles.

Injection molding process of sulfone resin polymer:

Since the properties and application grades of the modified polysulfone vary greatly, the processing process variables are also large, so the following ranges should be adjusted accordingly:

1, dry: 90 ° C -110 ° C / 3-4Hr

2, injection temperature: 260-280 ° C

3, mold temperature: 80-100 ° C

(The above information is compiled by Jiangmen Junsheng Industrial Co., Ltd., our company has a team of professional PPSU mold and injection molding services, welcome to call us： sales@jm-junsheng.com)