Thermoplastic comparison
PPS (polyphenylene sulfide) vs PTFE (Teflon)
Every value below is a typical room-temperature figure with its source, test method and conditions — the same dataset that drives the calculators.
| Property | PPS (polyphenylene sulfide) | PTFE (Teflon) | Difference |
|---|---|---|---|
| Density | 1.35 g/cm³ | 2.17 g/cm³ | PTFE (Teflon) — 61% higher |
| Young's modulus E | 3.8 GPa | 0.5 GPa | PPS (polyphenylene sulfide) — 7.6× higher |
| Tensile strength | 80 MPa | 24 MPa | PPS (polyphenylene sulfide) — 3.3× higher |
| Melting point Tm | 280 °C | 327 °C | PTFE (Teflon) — 47 °C higher |
Where these numbers come from
- CAMPUS plastics database — typical grade datasheet values (campusplastics.com)
- Callister & Rethwisch, Materials Science and Engineering, 10th ed.
Typical room-temperature values for learning and preliminary design; grades vary widely and a supplier datasheet always overrides a textbook figure. Confirm against the datasheet before design work.