PPS, Polyphenylene Sulfide is a semi - crystalline, high-performance engineering plastic with extremely high mechanical (creep resistance, stiffness and strength) high temperature properties and chemical resistance that often make PPS the preferred alternative of metals or thermosets.
Polyphenylene Sulfide (PPS) chemical formula.
PPS (Polyphenylene Sulfide) is usually available unfilled, glass fibre reinforced (30- 40%), and with glass fibre reinforcement together with mineral filling up to 65%.
PPS (Polyphenylene Sulfide) key properties:
- Continuous service temperature up to 240°C
- Short term temperature resistance up to 270°C
- Inherently flame retardant
- Very high chemical resistance (insoluble in all known solvents below 200°C)
- Very low water absorption
- Very high creep resistance, even at high temperatures
Creep tests show the behaviour of a material under long-term stress under different conditions (e.g. elevated temperatures) and help to select the best material for parts subjected to prolonged stress. PPS (Polyphenylene Sulfide) exhibits very high creep resistance, even at high temperatures, and therefore PPS is the material of the choice for many very high demanding applications.
Polyphenylene Sulfide shows one of the highest temperature resistance among thermoplastics. Some reinforced PPS grades achieve HDT (Heat Deflection Temperature) of 270°C.
PPS (Polyphenylene Sulfide) is an inherently flame retardant polymer. It means that PPS achieves rating UL 94 V-0 and some grades, even 5 VA even without any flame retardant additive.
The most important PPS applications are:
- Electrical and electronic components
- Multipoint connectors
- Automotive parts
- Air intake system parts
- Fuel system components
- Power tools components
- Surgical devices
- Applications in contact with potable water (NSF and KTW certificates available)