PPS (polyphenylene sulfide), marketed as Ryton R-4, is a high-performance engineering thermoplastic known for excellent chemical resistance, dimensional stability, and retention of mechanical properties at elevated temperatures. It is widely used in automotive, aerospace, chemical processing, and electrical industries where corrosive environments, sustained heat, or precise dimensional tolerance are critical requirements. Engineers select PPS over commodity plastics when long-term exposure to aggressive solvents, acids, or bases is expected, or when operating temperatures preclude use of polyesters or polyamides.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Ultimate Tensile Strength(σUTS) | 12.47 | ksi | — | ||
Young's Modulus(E) | 478.6 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | 193.7 | °F | — | ||
Melting Point / Solidus(Tm) | 544.7 | °F | — | ||
Coefficient of Thermal Expansion(α (CTE)) | 27.22 | µin/in·°F | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.04877 | lb/in³ | — |