Medium density polyethylene
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Medium Density Polyethylene, or MDPE is a type of Polyethylene defined by a density range of 0.926 - 0.940 g/cm3. It is less dense than HDPE, which is more common. MDPE can be produced by chromium/silica catalysts, Ziegler-Natta catalysts or metallocene catalysts.
| MDPE | |
|---|---|
| Density | 0.926-0.940 g/cm3 |
| Young modulus/ E modulus/ Tensile modulus | 172–379 MPa |
| Tensile strength(σt) | 12.4–19.3 MPa |
| Elongation @ break | 100–150% |
| Brittleness, low temperatur | -118 °C |
| Vicat | 99-124 °C |
| Specific heat (c) | 1.916 kJ/kg.K |
| Source: J.Brandrup, E. H. Immergut & E.A. Grulke, Polymer Handbook Fourth edition, ISBN 0-471-48171-8 | |
For more information on Polyethylene in general, see Polyethylene.
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