What is polyphenylene sulphide (PPS)?
Polyphenylene sulphide (PPS) is a semi-crystalline high-performance plastic with exceptionally high temperature, chemical and dimensional stability. The material is primarily used in demanding technical applications where precision, thermal resilience and media resistance are required - for example in the automotive industry, electrical engineering or for Rubber-plastic composite parts.
Properties of polyphenylene sulphide (PPS)
PPS is characterised by a combination of excellent heat resistance and resistance to chemicals, Oiling, fuels and solvents. It is naturally flame-retardant (UL 94 V-0) and has low water absorption, which makes it ideal for dimensionally stable precision components.
Key features at a glance:
- Continuous operating temperature up to approx. +240°C
- High rigidity and strength, even with Heat
- Very good chemical resistance
- Low water absorption and therefore good dimensional stability
- Natural flame retardancy without halogens
- Electrically insulating or conductively modifiable
- Suitable for metal replacement in highly stressed components
PPS is easy to fill and reinforce, e.g. with glass fibres or minerals, which can further improve mechanical properties.
Application of polyphenylene sulphide (PPS)
PPS is primarily used in the following areas:
- Pump housings, valves, flanges in chemical and process engineering
- Electronic components, e.g. connectors, coilformers, sensor carriers
- Automotive: e.g. media-carrying components in the engine compartment
- Rubber-Plastic Composite Parts in combination with adhesion promoters and FKM or HNBR in oil and fuel environments
- Components with tight tolerances for high-temperature applications
Thanks to its good media and temperature resistance, PPS is ideal for hybrid solutions in which rubber and plastic are combined - for example in the Multi-component injection moulding.