PP Homopolymer vs. PBI
PP homopolymer belongs to the thermoplastics classification, while PBI belongs to the thermoset plastics. There are 14 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 PP homopolymer and the bottom bar is PBI.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 45 to 64 | |
| 350 |
| Elongation at Break, % | 3.0 to 80 | |
| 3.0 |
| Flexural Modulus, GPa | 1.5 to 7.0 | |
| 6.5 |
| Flexural Strength, MPa | 41 to 100 | |
| 220 |
| Impact Strength: Notched Izod, J/m | 42 to 95 | |
| 27 |
| Tensile Strength: Ultimate (UTS), MPa | 36 to 93 | |
| 160 |
Thermal Properties
| Glass Transition Temperature, °C | 170 | |
| 410 |
| Heat Deflection Temperature At 1.82 MPa (264 psi), °C | 73 to 160 | |
| 430 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 340 |
| Specific Heat Capacity, J/kg-K | 1230 to 1900 | |
| 930 |
| Thermal Expansion, µm/m-K | 30 to 90 | |
| 23 |
Otherwise Unclassified Properties
| Density, g/cm3 | 0.91 to 1.2 | |
| 1.3 |
Common Calculations
| Strength to Weight: Axial, points | 11 to 21 | |
| 34 |
| Strength to Weight: Bending, points | 27 to 37 | |
| 50 |