Regenerated Caprolactam (rCPL PIR & PCR)
Chemical Depolymerization nylon 6 from used nylon (such as used fishing nets and old clothing) to extract and refine the raw nylon 6 material.
Product Data Sheet
| Item | Test conditions / methods | Range |
|---|---|---|
| Caprolactam Content | GC test | ≥ 99.8 wt% |
| Moisture | ASTM E203 | ≤ 0.2 wt% |
| Density | ASTM D-70 | 1.01 g/cm³ |
| Flash Point | ASTM D92 | 125°C |
| Ash | ASTM D482 | ≤ 0.01 wt% |
| Melting Point | DSC | 69.3°C |
| Boiling Point | ASTM D1078 | about 270°C |
| Color | Melting point test | ≤ 20 APHA |
Key Quality Indicators and Their Relationship to Polymerization (Industrial CPL)
| Technical specifications | Standard referencevalues (industrial grade) | Impact on polymerization reactions |
|---|---|---|
| Assay | >99.80% (min) | Polymer distribution and molecular weight control. |
| Water | ≤0.1–25.0% (max) | Interfere with the equilibrium of the ring-opening reaction. |
| Color (APHA) | ≤10 | Whiteness and opacity. |
| Volatile bases | ≤10 ppm | The stability of the molecular chain at its end. |
| Iron content | ≤0.5 ppm | The product's color and product processing. |
Primary Applications of Regenerated Caprolactam (rCPL)
Regenerated caprolactam (rCaprolactam, or rCPL) is one of the most important raw materials in the global polyamide industry, with over 90% used in the manufacture of Nylon 6.