PPS vs. Thermoset PI
PPS belongs to the thermoplastics classification, while thermoset PI belongs to the thermoset plastics. There are 14 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is PPS and the bottom bar is thermoset PI.
Metric UnitsUS Customary Units
Mechanical Properties
Compressive (Crushing) Strength, MPa | 95 to 160 | |
120 to 210 |
Elongation at Break, % | 2.5 to 11 | |
2.0 to 5.9 |
Flexural Modulus, GPa | 13 to 17 | |
3.1 to 4.8 |
Flexural Strength, MPa | 120 to 190 | |
60 to 100 |
Impact Strength: Notched Izod, J/m | 21 to 80 | |
21 to 43 |
Tensile Strength: Ultimate (UTS), MPa | 75 to 190 | |
37 to 81 |
Thermal Properties
Glass Transition Temperature, °C | 190 to 290 | |
360 |
Heat Deflection Temperature At 1.82 MPa (264 psi), °C | 130 to 260 | |
370 |
Specific Heat Capacity, J/kg-K | 910 to 1000 | |
1130 |
Thermal Expansion, µm/m-K | 20 to 45 | |
38 to 54 |
Otherwise Unclassified Properties
Density, g/cm3 | 1.3 to 1.7 | |
1.4 to 1.6 |
Water Absorption At Saturation, % | 0.060 to 0.1 | |
3.6 |
Common Calculations
Strength to Weight: Axial, points | 16 to 37 | |
6.5 to 16 |
Strength to Weight: Bending, points | 30 to 52 | |
16 to 30 |