Polyethylene: Difference between revisions
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Polyethylene is produced in industrial quantities from [[ethylene]] through the use of [[catalyst|catalysts]]. Common catalysts include chromium trioxide and metallocene. | Polyethylene (PE) is produced in industrial quantities from [[ethylene]] through the use of [[catalyst|catalysts]]. Common catalysts include chromium trioxide and metallocene. | ||
==Properties== | ==Properties== | ||
Revision as of 16:02, 24 February 2022
Polyethylene is a polymer of ethylene. It is non-toxic and easily recycled. Polyethylene is a synthetic material, and is the most common plastic produced on Earth. This may be true on Mars as well.
In situ Production
Polyethylene (PE) is produced in industrial quantities from ethylene through the use of catalysts. Common catalysts include chromium trioxide and metallocene.
Properties
Embodied energy: about 100 MJ/kg, depending on the variety.
Density: 880–960 kg/m3
Melting point: 115–135 °C
Strength: LDPE: 7 MPa (1000 psi) HDPE: 20 MPa (2900 psi)
Use
Polyethylene is used widely on Earth, and will likely have many applications in a Martian settlement. Polyethylene is available as LDPE (low density polyethylene) and HDPE (high density polyethylene).
References
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