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EPiC database - Low-density polyethylene (LDPE) film

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posted on 20.11.2019 by Robert Crawford, André Stephan, Fabian Prideaux
This material is part of the free Environmental Performance in Construction (EPiC) Database. The EPiC Database contains embodied environmental flow coefficients for 250+ construction materials using a comprehensive hybrid life cycle inventory approach.

Polyethylene (PE) is the most common plastic and is a thermoplastic polymer. It has low strength and rigidity but high impact strength and ductility and low friction. It is highly waterproof.

PE is produced by polymerising ethylene monomers using different catalysts (typically metal chlorides or metal oxides). Different densities can be obtained with different properties. Multiple additives are also used to obtain different grades and properties of PE. PE is thermoformed into moulds or extruded.

Low-density polyethylene (LDPE) is cheaper than HDPE. LDPE films are usually used as vapour barriers, geomembranes and as general purpose membranes on site.

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