pvc resin
|
Type
|
SG1
|
SG2
|
SG3
|
SG4
|
SG5
|
SG6
|
SG7
|
SG8
|
|
|
Viscosity, ml/g or K Value
|
156-144
|
143-136
|
135-127
|
126-119
|
118-107
|
106-96
|
95-87
|
86-73
|
|
|
K Value
|
77-75
|
74-73
|
72-71
|
70-69
|
68-66
|
65-63
|
62-60
|
59-55
|
|
|
Average polymerization
|
|
|
1350- 1250
|
1250- 1150
|
1110- 1000
|
950-850
|
850-750
|
750-650
|
|
|
Number of impurity particle ≤
|
30
|
30
|
30
|
30
|
30
|
30
|
40
|
40
|
|
|
Volatiles content %, ≤
|
0.40
|
0.40
|
0.40
|
0.40
|
0.40
|
0.40
|
0.40
|
0.40
|
|
|
Apparent density g/ml ≥
|
0.42
|
0.42
|
0.42
|
0.42
|
0.42
|
0.45
|
0.45
|
0.45
|
|
|
Residual after sieve
|
0.25mm mesh ≤
|
2.0
|
2.0
|
2.0
|
2.0
|
2.0
|
2.0
|
2.0
|
2.0
|
|
0.063mm mesh≥
|
90
|
90
|
90
|
90
|
90
|
90
|
90
|
90
|
|
|
Number of grain/400cm 2 ≤
|
40
|
40
|
40
|
40
|
40
|
40
|
40
|
40
|
|
|
Plasticizer absorbency valueof 100g resin
|
25
|
25
|
25
|
22
|
19
|
16
|
14
|
14
|
|
|
Whiteness % ≥
|
74
|
74
|
74
|
74
|
74
|
74
|
70
|
70
|
|
|
Ethylidene chloride mg/kg ≤
|
150
|
150
|
150
|
150
|
150
|
150
|
150
|
150
|
|