Polyarylsulfone (PSU/P/PPSU)
PSU/P/PPSU is a thermally stable thermoplastic consisting mainly of phenyl and biphenyl groups linked by ether and sulfone groups. The material is resistant to high and low temperatures, has excellent impact strength, and is chemical and solvent resistant. It is, therefore, a popular choice for electrical insulation applications
- History
- Properties
- Applications
- Processes
- Recycling
- Faq
History
1980: Start of industrial production
Properties
Parts made out of polyarylsulfones have excellent dimensional stability and remain strong, rigid, and tough up to temperatures close to the glass transition temperature. The key features are:
- temperature-independent properties
- very high long-term service temperatures
- good dimensional stability
- high stiffness
- high mechanical strength
- good electrical insulation properties
- favorable dielectric properties
- very good fire behaviour
- excellent hydrolysis resistance
Applications
Polyarylsulfone is used in the automotive industry for:
- headlights and interior reflectors
Polyarylsulfone is used in the electrical and electronics industry for:
- fuse encapsulation
Elsewhere, polyarylsulfone is used to make:
- water fittings pump impellors baby bottles microwave dishes thin hollow fibres for water treatment
Processes
Polyarylsulfones are amorphous, thermoplastic polycondensation products with the following basic structures:
Recycling
Polyarylsulfone applications are 100% recyclable, either mechanically or as feedstock, and energy from waste can be recovered at incineration plants.
The most appropriate recovery options depend on numerous conditions. These include local legislation, plastics part design, access to sorting facilities and regional logistics and recycling costs.
