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Understanding quality perceptions in plastics recycling is key. Different actors in the value chain have varying views on plastic quality, impacting recycling efficiency.

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Area of Science:

  • Materials Science
  • Environmental Science
  • Sustainable Business Practices

Background:

  • The plastics recycling industry faces challenges due to varied definitions of 'quality'.
  • A clear, shared understanding of quality is crucial for efficient plastics packaging material processing and recycling systems.

Purpose of the Study:

  • To explore and understand the diverse perceptions of quality among different actors in the plastics packaging material processing chain.
  • To identify the key quality criteria used by various stakeholders and analyze differences in their perspectives.

Main Methods:

  • Conducted semi-structured interviews with key stakeholders across the plastics value chain.
  • Included polymer producers, converters, brand owners, waste management companies, mechanical recyclers, chemical recyclers, additive producers, and equipment manufacturers.
  • Categorized quality perceptions into nine distinct criteria: purity, uniformity, mechanical properties, physical properties, processability, functionality, regulations & safety, substitutability, and circularity.

Main Results:

  • Significant differences in quality perceptions were identified among actors based on their position in the value chain.
  • Nine quality categories were established, highlighting the multifaceted nature of 'quality' in plastics recycling.
  • While differences exist, some quality perceptions align between adjacent actors, though not always explicitly recognized.

Conclusions:

  • Divergent quality perceptions among plastics recycling stakeholders can impede the efficiency of the entire recycling system.
  • Acknowledging and bridging these differing viewpoints is essential for improving the effectiveness of plastics recycling.
  • Further research and collaboration are needed to harmonize quality standards and enhance the circular economy for plastics.