General Purpose Polyvinyl Chloride
Resin by a Suspension Process
Items
SG3
SG4
SG5
SG6
SG7
SG8

A
B
A
B
A
B
A
B
A
B
A
B

Av.d.p

K value

Viscosity(ml/g)
1350~1250

72~71

135～127
1250~1150

70~69

126～119
1100~1000

68~66

118～107
950~850

65~63

106～96
850~750

62~60

95～87
750~650

59~55

86～73

Impurity particle number ≤
30 90
30 90
30 90
30 90
40 100
40 100

Volatiles(incl.water ) %≤
0.40 0.50
0.40 0.50
0.40 0.50
0.40 0.50
0.40 0.50
0.40 0.50

Bulk density g/ml ≥
0.42 0.40
0.42 0.40
0.42 0.40
0.45 0.40
0.45 0.40
0.45 0.40

Sieve ratio%
0.25mm ≤
2.0 8.0
2.0 8.0
2.0 8.0
2.0 8.0
2.0 8.0
2.0 8.0

0.063mm ≥
90 80
90 80
90 80
90 80
90 80
90 80

"fish eye" number unit /400cm2 ≤
40 ?
40 ?
40 ?
40 ?
50 ?
50 ?

100g resin plasticizer absorbtion g ≥
25 ?
22 ?
19 ?
16 ?
14 ?
14 ?

Whiteness(after 160°C10min) ≥
?
?
?
?
?
?

Conductivity of extracted aqueous solution s/m ≤
5?0-3
?
?
?
?
?

Residual VCM ppm ≤
10 ?
10 ?
10 ?
10 ?
10 ?
10 ?