Production Process Micro-suspension Polymerization
Chemical Type Polyvinyl Chloride Homopolymer
Appearance White ultrafine powder, average particle size 1-2μm
Degree of Polymerization (Degree of Polymerization): 1580-1780 (typical value 1680) - National standard test method
Volatile Component (Volatile Component): ≤0.50% 105℃, 2 hours
Residual Vinyl Chloride Monomer (Residual VCM): ≤5.0 mg/kg Gas chromatography, in line with environmental protection and safety standards
Sieve Residue (Sieve Residue): ≤10.0mg/kg 0.15mm standard sieve
Bulk Density (Bulk Density): 0.20-0.40 g/cm³ Loose bulk density test
Type B Viscosity (Type B Viscosity): 1000-2500mPa·s 30℃, resin: plasticizer (DOP) = 100:65 ratio
K Value 72-75: - Calculated according to the degree of polymerization
Viscosity Number: 145-160 ml/g Dichloroethane solution test
Glass Transition Temperature (Tg) Approximately: 82℃ ℃ DSC test
Moisture Content: ≤0.30% Karl Fischer method