PVC resin(Suspension Method)
- CAS No.: 9002-86-2; 93050-82-9
- EINECS No：200-831-0
- Formula: (C₂H₃Cl)n
- Usage :
- SG3：use for PVC leather, sheet, film
- SG5: Transparent products, rigid pipes and film, profile;
- SG8：Transparent hollow vessel, transparent rigid film, rigid piping material and fittings;
| TYPE | SG3 | SG5 | SG8 |
|---|---|---|---|
| K value | 71-72 | 66-68 | 55-59 |
| average polymerization degree | 1250-1350 | 1000-1100 | 650-750 |
| Volatile matter and moisture % ≤ | 0.3 | 0.3 | 0.3 |
| Bulk density g/ml ≥ | 0.45 | 0.48 | 0.48 |
| Residual %(Mesh 0.25mm ≤) | 2 | 2 | 2 |
| Residual %(Mesh 0.063mm ≥) | 90 | 90 | 90 |
| Fish hole Number/400cm2 ≤ | 20 | 20 | 30 |
| Plasticizer absorption ≥ per 100g resin | 25 | 20 | 12 |
| Whiteness(160℃,after 10min), % ≥ | 75 | 75 | 70 |
| Vcm Residuals mg/kg ≤ | 5 | 5 | 5 |