PVC qualities of translucent yellowish sheen. The transparency is better than polyethylene, polypropylene, worse than polystyrene. with additive, into the hardness of the soft and hard PVC, soft products soft and tough, feel sticky, hard products is higher than the low-density polyethylene, but lower than the polypropylene, the inflection at the bleaching phenomenon.
|
No.
|
Specification Type
Item
|
SG-5
(STANDARD)
|
SG-5
ACTUALITY
|
|
|
1
|
Viscosity Number ml/g
|
118-107
|
112
|
|
|
2
|
Impurity of ion number ≦
|
30
|
25
|
|
|
3
|
Purity of volatiles including water ≦
|
0.40
|
0.14
|
|
|
4
|
Apparent density , g/ml ≧
|
0.48
|
0.52
|
|
|
5
|
Residue on sieve %
|
0.25mm sieve ≦
|
2.0
|
0.81
|
|
0.063mm sieve ≧
|
95
|
98
|
||
|
6
|
Mesh number per/400cm2 ≦
|
20
|
16
|
|
|
7
|
100Plasticizer absorption of PVC of 100g ≧
|
19
|
20
|
|
|
8
|
whiteness(160℃, 10min later )% ≧
|
78
|
84
|
|
|
9
|
Water extract conductivity S/m ≦
|
--
|
--
|
|
|
10
|
Residual chlorethylene , ppm ≦
|
5
|
4
|
|
|
11
|
Appearance
|
White powder | ||
PVC used for: sheets, tubes, shoe soles, toys, doors and windows, wire jacket, stationery. Way to use a chlorine atom replacing a hydrogen atom in polyethylenepolymer materials.