Polyphenylene sulfide (PPS) is a high-performance engineering resin produced by the reaction of p-dichlorobenzene and sodium sulfide. The products a polymer, PPS, that offer high thermal stability, excellent chemical resistance, excellent electrical properties, high flow, and inherent flame resistance. Because of its low melt viscosity, PPS is commonly processed using injection molding, but grades are available for extrusion. Common applications include plumbing and water fittings, liners for downhole oil and gas pipes, technical fibers, film, electrical and electronic, healthcare, aircraft / aerospace and business machines.
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Polymer Characteristics
- High strength and stiffness
- High HDT (260°C / 500°F)
- Long term CUT 200°C / 392°F
- Excellent chemical resistance
- Good electrical properties
- Excellent dimensional stability
- Inherently self-extinguishing (UL 94 V0)
The PPS chemical structure provides excellent chemical and thermal resistance. Insoluble in all known solvents below 200°C (392°F), it has very good stability in both typical and alternative automotive fuels.
Grades
- Glass-filled grades
- Mineral-glass grades
- Low-wear grades
- Blow-molding grades
- Medical grades
Processing Methods
- Injection molding
- Extrusion (film, fiber, sheet, shapes)
- Blow molding
Unfilled, high viscosity Fortron PPS is also suitable for extrusion and compression molding to produce sheets, rods and other stock shapes commonly used for prototyping.
Typical Applications
- Bobbins, contact holders, lamp parts, brush holders, shields, connectors
- Pump housings and impellers
- Fuel injection and exhaust components
- Washers and bearings
It has broad automotive, drinking water, food contact and aerospace approvals.
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