PBI vs. PPS
PBI belongs to the thermoset plastics classification, while PPS belongs to the thermoplastics. There are 13 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.
For each property being compared, the top bar is PBI and the bottom bar is PPS.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 350 | |
| 95 to 160 |
| Elongation at Break, % | 3.0 | |
| 2.5 to 11 |
| Flexural Modulus, GPa | 6.5 | |
| 13 to 17 |
| Flexural Strength, MPa | 220 | |
| 120 to 190 |
| Impact Strength: Notched Izod, J/m | 27 | |
| 21 to 80 |
| Tensile Strength: Ultimate (UTS), MPa | 160 | |
| 75 to 190 |
Thermal Properties
| Glass Transition Temperature, °C | 410 | |
| 190 to 290 |
| Heat Deflection Temperature At 1.82 MPa (264 psi), °C | 430 | |
| 130 to 260 |
| Specific Heat Capacity, J/kg-K | 930 | |
| 910 to 1000 |
| Thermal Expansion, µm/m-K | 23 | |
| 20 to 45 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.3 | |
| 1.3 to 1.7 |
Common Calculations
| Strength to Weight: Axial, points | 34 | |
| 16 to 37 |
| Strength to Weight: Bending, points | 50 | |
| 30 to 52 |