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Determination of thermal and mechanical properties of HDPE-based polymer blends for use in traffic signs

1 Department of Environmental Engineering. Institute of Technology of Costa Rica, Cartago
2 Department of Materials Science and Engineering. Institute of Technology of Costa Rica, Cartago, Costa Rica 07050

Topical Section: Advanced composites

Two recycled high-density polyethylene specimens and two recycled high-density polyethylene blends were characterized in terms of their thermal and mechanical properties with the purpose of assessing their suitability for the construction of traffic signs. Traffic signs constructed from recycled plastics provide an application for materials that otherwise with end up in landfills. The HDPE composite containing 25% LDPE and 5% ABS had the best mechanical and thermal performance. Of importance is the recycling of ABS that traditionally had not been recycled locally and found its final fate in landfills.
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