PEI vs. MDPE
Both PEI and MDPE are thermoplastics. There are 8 material properties with values for both materials. Properties with values for just one material (24, in this case) are not shown.
For each property being compared, the top bar is PEI and the bottom bar is MDPE.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 1.3 to 1.5 | |
| 0.93 |
| Elastic (Young's, Tensile) Modulus, GPa | 3.4 to 5.6 | |
| 0.6 |
| Glass Transition Temperature, °C | 210 | |
| -80 |
| Specific Heat Capacity, J/kg-K | 1050 to 1220 | |
| 2350 |
| Stiffness to Weight: Axial, points | 1.5 to 2.1 | |
| 0.36 |
| Stiffness to Weight: Bending, points | 39 | |
| 30 |
| Thermal Conductivity, W/m-K | 0.18 to 0.23 | |
| 0.4 |
| Thermal Diffusivity, mm2/s | 0.11 to 0.14 | |
| 0.18 |