PPO vs. PMMA
Both PPO and PMMA are thermoplastics. There are 13 material properties with values for both materials. Properties with values for just one material (20, in this case) are not shown.
For each property being compared, the top bar is PPO and the bottom bar is PMMA.
Metric UnitsUS Customary Units
Mechanical Properties
| Elongation at Break, % | 3.5 to 28 | |
| 4.0 |
| Flexural Strength, MPa | 92 to 140 | |
| 110 |
| Impact Strength: Notched Izod, J/m | 80 to 270 | |
| 74 |
| Tensile Strength: Ultimate (UTS), MPa | 63 to 140 | |
| 71 |
Thermal Properties
| Heat Deflection Temperature At 1.82 MPa (264 psi), °C | 120 to 140 | |
| 96 |
| Specific Heat Capacity, J/kg-K | 1020 to 1250 | |
| 1260 |
| Thermal Expansion, µm/m-K | 25 to 60 | |
| 76 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 Hz | 2.7 to 3.2 | |
| 3.6 |
| Dielectric Strength (Breakdown Potential), kV/mm | 19 to 21 | |
| 30 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.1 to 1.4 | |
| 1.2 |
| Limiting Oxygen Index (LOI), % | 32 | |
| 17 |
Common Calculations
| Strength to Weight: Axial, points | 16 to 27 | |
| 17 |
| Strength to Weight: Bending, points | 33 to 42 | |
| 32 |