POLYVINYL CHLORIDE RESIN(PVC)
PVC resin, physical appearance of white powder, non-toxic, odorless. Relative density 1.35-1.46, refractive index 1.544 (20℃) insoluble in water, gasoline, alcohol and vinyl chloride, soluble in acetone, dichloroethane, xylene and other solvents, high chemical stability, with good plasticity. PVC resin is a polar non-crystalline polymer, there is a strong force between molecules, is a hard and brittle material; Low impact strength.
Parameter
Grade
Standard: GB5761-1993
SG3
SG5
SG7
SG8
K - Value
72 - 71
66 - 68
62 - 60
59 - 55
Polymerizing Index
1300 +/-50
1000 +/…