China Virgin PVC Resin Sg5 K67 Used in Tubing Pipes Manufacturing, Find details about China PVC Resin, PVC Resin K67 from Virgin PVC Resin Sg5 K67 Used in Tubing Pipes Manufacturing
Parameter | Grade | |||
Standard: GB5761-1993 | SG3 | SG5 | SG8 | |
Viscosity ml/g | 135-127 | 118-107 | 86-73 | |
K-Value | 72-70 | 67-65 | 59-55 | |
Average degree of Polymerization | 1300+/-50 | 1000+/-50 | 700+/-50 | |
Number of impurity particles ≤ | 16 | 16 | 20 | |
Volatile content (incl. water) % ≤ | 0.3 | 0.4 | 0.4 | |
Apparent density ≥ | 0.42 | 0.48 | 0.5 | |
Particle size | ≥ 0.25mm ≤ | 2 | 2 | 0.4 |
≥ 0.063mm ≥ | 95 | 95 | 95 | |
Number of Fish Eye (/400 cm2) ≤ | 20 | 20 | 30 | |
Plasticizer absorption of 100g resin ≥ | 26 | 19 | 22 | |
Whiteness (160°C, after 10 min.) % ≥ | 78 | 78 | 75 | |
VCM Residue PPM ≤ | 5 | 5 | 5 |