PCL vs. PBI
PCL belongs to the thermoplastics classification, while PBI belongs to the thermoset plastics. There are 11 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.
For each property being compared, the top bar is PCL and the bottom bar is PBI.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 1.2 | |
| 5.9 |
| Elongation at Break, % | 300 | |
| 3.0 |
| Tensile Strength: Ultimate (UTS), MPa | 10 | |
| 160 |
Thermal Properties
| Glass Transition Temperature, °C | -60 | |
| 410 |
| Maximum Temperature: Decomposition, °C | 200 | |
| 590 |
| Maximum Temperature: Mechanical, °C | 40 | |
| 340 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.1 | |
| 1.3 |
Common Calculations
| Stiffness to Weight: Axial, points | 0.61 | |
| 2.5 |
| Stiffness to Weight: Bending, points | 32 | |
| 46 |
| Strength to Weight: Axial, points | 2.5 | |
| 34 |
| Strength to Weight: Bending, points | 9.4 | |
| 50 |