PBI vs. LCP
PBI belongs to the thermoset plastics classification, while LCP belongs to the thermoplastics. There are 14 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.
For each property being compared, the top bar is PBI and the bottom bar is LCP.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 5.9 | |
| 11 to 24 |
| Elongation at Break, % | 3.0 | |
| 1.0 to 3.0 |
| Flexural Modulus, GPa | 6.5 | |
| 9.0 to 23 |
| Flexural Strength, MPa | 220 | |
| 160 to 320 |
| Tensile Strength: Ultimate (UTS), MPa | 160 | |
| 180 to 230 |
Thermal Properties
| Heat Deflection Temperature At 1.82 MPa (264 psi), °C | 430 | |
| 240 to 270 |
| Maximum Temperature: Decomposition, °C | 590 | |
| 520 |
| Specific Heat Capacity, J/kg-K | 930 | |
| 1020 to 1200 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.3 | |
| 1.4 to 1.6 |
| Limiting Oxygen Index (LOI), % | 58 | |
| 35 |
Common Calculations
| Stiffness to Weight: Axial, points | 2.5 | |
| 4.4 to 8.9 |
| Stiffness to Weight: Bending, points | 46 | |
| 51 to 65 |
| Strength to Weight: Axial, points | 34 | |
| 33 to 43 |
| Strength to Weight: Bending, points | 50 | |
| 45 to 56 |