PVC K66-K68

PVC K66-K68 is mainly used for gramophone record, value and welding rod, PVC pipes, PVC windows, doors,etc.
PVC K66-K68

pvc resin k67 is the most widely raw material used in plastic production
PVC Resin (SG-5)
Properties: PVC resin is a white or buff powder, the apparent density of 0.40 ~ 0.60g/cm3, relatively density 1.4 g/cm3, refractive index of 1.544 (20 C), water absorption ≤ 0.5 %. Indissolve in water, alcohol, gasoline, can be swelling or dissolved in ether, ketones, chlorinated aliphatic hydrocarbons and aromatic hydrocarbons. Under 20 C, there is a strong acid-resistance, can be resistant to any concentration of hydrochloric acid, 90% or less of sulfuric acid, 50% ~ 60% of nitric acid and 20% or less of the caustic soda solution, stability of the salts. In the flame will burn on and left flame it will be extinguished. Excellent dielectric insulation properties

Applications:

SG-5: Rigid plate, gramophone record, value and welding rod, PVC pipes, PVC windows, doors, etc.
Name PVC RESIN SG5
appearance WHITE POWDER
SPECIFICATIONs
Property Specification
Average polymerization 1100-1000
K Value 68-66
Viscosity(ml/g) 118-107
Impunity particle number(piece)≤ 16
Surface Density,g/ml≥ 0.48
Volatile(including water)%≤ 0.40
Residue screened:0.25mm screen hole≤ 2.0
0.063mm screen hole≥ 95
Pearleye number,grain/400c≤ 20
Absorbing volume(g) of elasticizer/100g PVC resin≥ 19
White degree (160,10minlater),%≥ 78
Rudimental chloroethylene volume,ppm≤ 5