Properties: It is thermoplastic, insoluble in water, gasoline and ethanol, expandable or soluble in ether, ketone, fatty chlorohy-drocarbons or aromatic hydrocarbons with strong anti--corrosiveness, and good dieletric property.
Polyvinyl chloride can be abbreviated to PVC. It is a kind of thermoplastic plastic.
Polyvinyl chloride can be abbreviated to PVC. It is a kind of thermoplastic plastic.
|
Tape:
|
SG1
|
SG2
|
SG3
|
SG4
|
SG5
|
SG6
|
SG7
|
SG8
|
|
K value
|
77-75
|
74-73
|
72-71
|
70-69
|
68-66
|
65-63
|
62-60
|
59-55
|
|
Viscosity, ml/g
|
156-144
|
143-136
|
135-127
|
126-119
|
118-107
|
106-96
|
95-87
|
86-73
|
|
Average
polymerization
|
|
|
1350-1250
|
1250-1150
|
1100-1000
|
950-850
|
950-850
|
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
|
|
Appearing 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 l≥
|
90
|
90
|
90
|
90
|
90
|
90
|
90
|
90
|
|
Number of grain/400cm2≤
|
40
|
40
|
40
|
40
|
40
|
40
|
40
|
40
|
|
Plasticizer absorbency
value of 100g resin
|
25
|
25
|
25
|
22
|
19
|
16
|
14
|
14
|
|
Whiteness %,≥
|
74
|
74
|
74
|
74
|
74
|
74
|
70
|
70
|
|
Residual chlore thylene content mg/kg≤
|
5
|
5
|
5
|
5
|
5
|
5
|
5
|
5
|
|
Ethylidene chloride
mg/kg≤
|
150
|
150
|
150
|
150
|
150
|
150
|
150
|
150
|