MDPE vs. PEI
Both MDPE and PEI 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 MDPE and the bottom bar is PEI.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 0.93 | |
| 1.3 to 1.5 |
| Elastic (Young's, Tensile) Modulus, GPa | 0.6 | |
| 3.4 to 5.6 |
| Glass Transition Temperature, °C | -80 | |
| 210 |
| Specific Heat Capacity, J/kg-K | 2350 | |
| 1050 to 1220 |
| Stiffness to Weight: Axial, points | 0.36 | |
| 1.5 to 2.1 |
| Stiffness to Weight: Bending, points | 30 | |
| 39 |
| Thermal Conductivity, W/m-K | 0.4 | |
| 0.18 to 0.23 |
| Thermal Diffusivity, mm2/s | 0.18 | |
| 0.11 to 0.14 |