RPU vs. PPO
RPU belongs to the thermoset plastics classification, while PPO belongs to the thermoplastics. There are 11 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.
For each property being compared, the top bar is RPU and the bottom bar is PPO.
Metric UnitsUS Customary Units
Mechanical Properties
| Elongation at Break, % | 90 | |
| 3.5 to 28 |
| Flexural Modulus, GPa | 2.0 | |
| 2.5 to 8.6 |
| Flexural Strength, MPa | 83 | |
| 92 to 140 |
| Tensile Strength: Ultimate (UTS), MPa | 60 | |
| 63 to 140 |
Thermal Properties
| Specific Heat Capacity, J/kg-K | 1750 | |
| 1020 to 1250 |
| Thermal Expansion, µm/m-K | 63 | |
| 25 to 60 |
Electrical Properties
| Dielectric Strength (Breakdown Potential), kV/mm | 19 | |
| 19 to 21 |
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 13 | |
| 15 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.2 | |
| 1.1 to 1.4 |
Common Calculations
| Strength to Weight: Axial, points | 14 | |
| 16 to 27 |
| Strength to Weight: Bending, points | 28 | |
| 33 to 42 |