PSS (polysulfone or a sulfone-based polymer variant) is an engineering thermoplastic known for its rigidity, thermal stability, and chemical resistance across a broad service range. It is widely used in demanding applications requiring sustained performance at elevated temperatures, such as aerospace components, medical devices, automotive under-hood parts, and industrial filtration systems where conventional plastics would degrade. Engineers select PSS when a balance of structural stiffness, dimensional stability, and resistance to hydrolysis and organic solvents is critical, making it competitive with polyetherimide and polyetherketone in cost-sensitive high-performance applications.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Strength(σc) | 0.04641 | ksi | — | ||
Elongation at Break(εf) | 44.48 | - | — | ||
Hardness (Vickers)(HV) | 293.3 | HV | — | ||
Ultimate Tensile Strength(σUTS) | 3.700 | ksi | — | ||
Young's Modulus(E) | 89.07 | ksi | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | 212.5 | °F | — | ||
Melting Point / Solidus(Tm) | 466.3 | °F | — | ||
Maximum Service Temperature(Tmax) | 633.4 | °F | — | ||
Thermal Conductivity(k) | 0.2116 | BTU/(hr·ft·°F) | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Band Gap(Eg) | 2.015 | eV | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Refractive Index(n) | 1.487 | - | — |