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Why does plastic recycling reduce demand for newly produced plastic?
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plastic pollution
A volunteer collecting plastic nurdles (pellets less than 0.2 inch [0.5 centimeter] in diameter) at Barreiras Beach, Corrubedo, Spain.
Recycling reduces the demand for newly produced plastic by providing a secondary source of material that can be used as feedstock in manufacturing processes. By recovering and reprocessing existing plastic waste, manufacturers can potentially offset the need to extract and refine raw petrochemicals to create virgin plastic.12
However, the effectiveness of this reduction is constrained by several significant factors:
- Economic Barriers: It is often cheaper and involves fewer production steps to create new plastic from raw materials than it is to collect, sort, clean, and reprocess used plastic.2
- Material Degradation: Plastics often undergo chemical changes during their initial use, such as oxidation or changes in molecular weight, which can make recycled material inherently weaker or less suitable for high-demand applications.3
- Contamination and Complexity: Many products are made of mixed materials or different polymer types that are difficult and costly to separate, limiting the quality and utility of the resulting recycled plastic.32
Because of these challenges, recycling is often limited to "niche" applications or less-demanding products, meaning it currently serves as a supplement to, rather than a full replacement for, the production of new plastic.31