PMP vs. LDPE
Both PMP and LDPE are thermoplastics. There are 15 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is PMP and the bottom bar is LDPE.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 1.1 | |
| 0.3 |
| Tensile Strength: Ultimate (UTS), MPa | 24 | |
| 7.0 |
Thermal Properties
| Glass Transition Temperature, °C | 30 | |
| -130 |
| Melting Onset (Solidus), °C | 230 | |
| 110 |
| Specific Heat Capacity, J/kg-K | 1750 | |
| 2300 |
| Thermal Conductivity, W/m-K | 0.17 | |
| 0.36 |
| Thermal Expansion, µm/m-K | 120 | |
| 220 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 Hz | 2.1 | |
| 2.3 |
Otherwise Unclassified Properties
| Density, g/cm3 | 0.83 | |
| 0.92 |
Common Calculations
| Stiffness to Weight: Axial, points | 0.74 | |
| 0.18 |
| Stiffness to Weight: Bending, points | 41 | |
| 24 |
| Strength to Weight: Axial, points | 8.0 | |
| 2.1 |
| Strength to Weight: Bending, points | 22 | |
| 8.8 |
| Thermal Diffusivity, mm2/s | 0.12 | |
| 0.17 |
| Thermal Shock Resistance, points | 13 | |
| 7.6 |