| POLYVINYL CHLORIDE RESIN PVC resin is made with suspension polymerization. The quality is stable and reaches the advanced level of foreign products. It won a superior prize national from nation and the Ministry of chemical industry for many times. Properties: white powder; wide rang in sizes; good chemical steadiness and dielectric property. Uses: Piping, hard transparent plate, film and sheeting, photograph records, PVC fibers, plastics blowing, insulating materials. Packing: 25kg bags.
Standard of Identity: GB 5761-93 NO | \Type
\Grade
\Specification | SG3 | SG5 | super | 1st | standard | super | 1st | standard | 1 | Viscosity number ml/g K - Value
Average polymerization degree | 135-127
(K72-71)
[1350-1250] | 118-107
(K68-66)
[1100-1000] | 2 | Number of impurity ≤ | 16 | 16 | 16 | 16 | 30 | 90 | 3 | Volatile matter and moisture% ≤ | 0.30 | 0.40 | 0.40 | 0.40 | 0.40 | 0.50 | 4 | Bulk density g/ml ≥ | 0.45 | 0.45 | 0.45 | 0.45 | 0.42 | 0.40 | 5 | Residual% | Particle size | 0.25mm ≤ | 2.0 | 2.0 | 8.0 | 2.0 | 2.0 | 8.0 | Particle size | 0.063mm ≥ | 90 | 90 | 80 | 90 | 90 | 80 | 6 | Fish hole number/400cm2 ≤ | 20 | 20 | 20 | 20 | 40 | - | 7 | Plasticizer absorption (per 100g resin) g ≥ | 26 | 20 | 20 | 20 | 25 | - | 8 | Whiteness (160℃,100min) % ≥ | 74 | 74 | 74 | 74 | - | - | 9 | Conductivity of water extract ion solution s/m ≤ | 5×10-3 - | - | 10 | VCM residuals ug/g ≤ | 8 | 10 | - | 8 | 10 | - |
NO | \Type
\Grade
\Specification | SG7 | SG8 | super | 1st | standard | super | 1st | standard | 1 | Viscosity number ml/g K - Value
Average polymerization degree | 95-87
(K62-60)
[850-750] | 86-73
(K59-55)
[750-650] | 2 | Number of impurity ≤ | 20 | 40 | 100 | 20 | 40 | 100 | 3 | Volatile matter and moisture% ≤ | 0.40 | 0.40 | 0.50 | 0.40 | 0.40 | 0.50 | 4 | Bulk density g/ml ≥ | 0.48 | 0.45 | 0.40 | 0.48 | 0.45 | 0.40 | 5 | Residual% | Particle size | 0.25mm ≤ | 2.0 | 2.0 | 8.0 | 2.0 | 2.0 | 8.0 | Particle size | 0.063mm ≥ | 90 | 90 | 80 | 90 | 90 | 80 | 6 | Fish hole number/
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