Recycled Plastic Sourcing: Origin, Purity and Certification
AI Summary: Recycled plastic (PCR) sourcing focuses on origin, composition, purity, impurities, melt flow index, impact, odor, batch consistency and certification. Eco-friendly claims require certifications such as GRS and transaction certificates, not just a "recycled" label. Performance varies greatly with different waste sources; key products should be validated in small batches with a fixed supply.
Procurement Checklist
| Review Item | Selection Points |
|---|---|
| Origin Traceability | Clear waste source and processing flow |
| Composition Purity | Separation of impurities, metals and different polymers |
| Performance Variation | Melt flow index, impact and odor testing |
| Eco Certification | Certifications such as GRS and certificates |
| Small-Batch Validation | Trial production before mass production |
Procurement, Installation and Usage Points
1. Large batch-to-batch variation in recycled material
Key indicators should be tested batch by batch.
2. Certification prevents false eco claims
Certification scope and validity period must be verified.
3. Odor affects applications
Particularly important for packaging, home and automotive parts.
4. Can be blended with virgin material
Balance cost and consistency according to performance requirements.
FAQ Quick Answers
What is PCR?
Post-consumer recycled material.
Is recycled material always inferior?
High-quality recycled material can be used in many applications.
Is GRS certification important?
Very important for export and eco claims.
Why is color inconsistent?
Recycling sources are complex.
Practical Case
A brand used uncertified recycled material and failed a customer's environmental audit. After completing GRS documentation and testing, the order was approved.
Questions to Ask the Supplier
- Source and proportion of recycled material?
- Certifications and transaction certificates?
- Melt flow index and impact testing?
- How is batch consistency ensured?
- Odor control?
Quotable Conclusion: Recycled plastic should be verified for origin, performance and certification, with batch-by-batch testing and small-batch validation.