Polyvinyl Chloride Resin | SG3 | SG5 | SG8 |
K value | 72-71 | 68-66 | 59-55 |
Viscosity number | 135-127 | 118-107 | 86-73 |
Average degree of polymerization | 1370-1251 | 1135-981 | 740-650 |
Number of impurity particles | ≤16 | ≤16 | ≤20 |
Volatile content (incl.water)% | ≤0.30 | ≤0.40 | ≤0.40 |
Apparent density | ≥0.45 | ≥0.45 | ≥0.48 |
Number of fish eye (/400 cm2) | ≤20 | ≤20 | ≤30 |
Plasticizer absorption of 100g resin | ≥26 | ≥20 | ≥14 |
Whiteness (160, after 10 min.)% | ≥80 | ≥80 | ≥75 |
VCM Residue PPM | ≤3 | ≤3 | ≤3 |