PAI vs. PPO
Both PAI and PPO are 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 PAI and the bottom bar is PPO.
Metric UnitsUS Customary Units
Mechanical Properties
| Elongation at Break, % | 3.0 to 12 | |
| 3.5 to 28 |
| Flexural Modulus, GPa | 4.0 to 6.8 | |
| 2.5 to 8.6 |
| Flexural Strength, MPa | 160 to 320 | |
| 92 to 140 |
| Impact Strength: Notched Izod, J/m | 45 to 140 | |
| 80 to 270 |
| Tensile Strength: Ultimate (UTS), MPa | 100 to 180 | |
| 63 to 140 |
Thermal Properties
| Heat Deflection Temperature At 1.82 MPa (264 psi), °C | 280 | |
| 120 to 140 |
| Maximum Temperature: Mechanical, °C | 260 | |
| 100 to 110 |
| Specific Heat Capacity, J/kg-K | 910 to 1000 | |
| 1020 to 1250 |
| Thermal Expansion, µm/m-K | 15 to 34 | |
| 25 to 60 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.4 to 1.6 | |
| 1.1 to 1.4 |
| Limiting Oxygen Index (LOI), % | 45 | |
| 32 |
| Water Absorption After 24 Hours, % | 0.3 to 0.4 | |
| 0.060 to 0.070 |
Common Calculations
| Strength to Weight: Axial, points | 19 to 34 | |
| 16 to 27 |
| Strength to Weight: Bending, points | 33 to 49 | |
| 33 to 42 |