China PVC Pipe Fittings Raw Materials PVC Resin Sg8 K57, Find details about China PVC Resin Sg8, PVC Resin K57 from PVC Pipe Fittings Raw Materials PVC Resin Sg8 K57
Grade: | SG3 | SG5 | SG7 | SG8 | |
K value | 72-71 | 68-66 | 62-60 | 59-55 | |
Viscosity, ml/g | 135-127 | 118-107 | 95-87 | 86-73 | |
Average polymerization | 1350-1250 | 1100-1000 | 950-850 | 750-650 | |
Number of impurity particle max | 30 | 30 | 40 | 40 | |
Volatiles content % max | 0.4 | 0.4 | 0.4 | 0.4 | |
Appearing density g/ml min | 0.42 | 0.42 | 0.45 | 0.45 | |
Residual after sieve | 0.25mm mesh max | 2 | 2 | 2 | 2 |
0.063mm min | 90 | 90 | 90 | 90 | |
Number of grain/400cm2 max | 40 | 40 | 40 | 40 | |
Plasticizer absorbency value of 100g resin | 25 | 19 | 14 | 14 | |
Whiteness % min | 74 | 74 | 70 | 70 | |
Residual chlorethylenecontent mg/kg max | 5 | 5 | 5 | 5 | |
Ethylidene chloride mg/kg max | 150 | 150 | 150 | 150 |