Perspective

Recycling of the #5 Polymer

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Science  10 Aug 2012:
Vol. 337, Issue 6095, pp. 700-702
DOI: 10.1126/science.1221806

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Abstract

Polypropylene (PP) is a widely used plastic with consumer applications ranging from food packaging to automotive parts, including car battery casings. To differentiate it from other recyclable plastics, it is designated as #5. Here, the factors contributing to PP recycling rates are briefly reviewed. Considerations include collection and separation efficiency, processing chemistry, and market dynamics for the products derived from recyclates.

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