PHB vs. RPU
PHB belongs to the thermoplastics classification, while RPU belongs to the thermoset plastics. There are 11 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.
For each property being compared, the top bar is PHB and the bottom bar is RPU.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 1.3 | |
| 2.2 |
| Elongation at Break, % | 7.5 | |
| 90 |
| Flexural Strength, MPa | 20 | |
| 83 |
| Tensile Strength: Ultimate (UTS), MPa | 30 | |
| 60 |
Thermal Properties
| Vicat Softening Temperature, °C | 58 | |
| 120 |
Electrical Properties
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 14 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.3 | |
| 1.2 |
Common Calculations
| Stiffness to Weight: Axial, points | 0.58 | |
| 1.0 |
| Stiffness to Weight: Bending, points | 29 | |
| 36 |
| Strength to Weight: Axial, points | 6.7 | |
| 14 |
| Strength to Weight: Bending, points | 17 | |
| 28 |