ПВХ смола SG значение 3 К 72-71 (Поливинилхлорид R

Polyvinyl Chloride (PVC) ResinFormula: (C2H3Cl)n CAS No.: 9002-86-2 Property: PVC resin is the most widely raw material used in plastic production. It has good chemical stability, corrosion resistance and water resistance. It can be dissolved in acetone, hydrochloric ether, ester and some alcohol. It can offer good solubility, good electrical insulation, thermo plasticity and membrane forming capacity. Applications: It is widely used in the production of water pipe, chemical pipe, plastic windows and doors, packing film, plastic carpet, plastic ceiling, sanitary fitting, leatheroid, plastic wallpaper etc. Storage: Dryness, airiness, shady and cool, and avoids heat, humidity, solarization and rain drenching.Technical specifications:SpecificationSG3SG5SG7SG8ml/gViscosity(or K-value)135-127 (72-71)1350-1250118-107(68-66)1100-100095-87(62-60)850-75086-73(59-55)750-650Number of impurity particles ≤30303030Volatile content % ≤0.400.400.400.40Bulk density g/ml ≥0.420.450.450.45Residue after sieve %0.25mm ≤ Mesh2.02.02.02.00.0063mm ≤ Mesh90909090Number of grain 400cm2 ≤40405050Plasticizer absorbency value of 100g resin g≥2517--Whiteness (160oc, 10min) % ≥75757070Conductivity of aqueous extract[Us/(cm.g)] ≤5---Residual vinyl chloride mg/kg ≤10101010Residual ethylidendichloride ug/g ≤150150150150