Polyvinyl chloride

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Rigid PVC is a hard, amber-colored material; precise properties depend on formulation.
Plasticised PVC can be made flexible by selection of type and proportion of plasticizer..

Dissolved by: tetrahydrofuran, cyclohexanone, methyl ethyl ketone, dymethylformamide,
also by mixture of acetone/(carbon disulphide, carbon tetrachloride, or benzene).

Plasticized by primary plasticizers (phtalates, phosphates, sebacates and fatty acid
derivatives)and polymeric plasticizers (adipates, sebacates or azelates of propylene glycol).

Relatively unaffected by water, alkalis, nonoxidising acids, hypochlorite solutions, aliphatic
hydrocarbons.

All PVC polymers are degraded by heat and light; hydrogen chloride is eliminated and
oxidation occurs.

Combustion: burns but is self extinguishing.

Specific gravity: Rigid PVC 1.39, high impact 1.34
                  Plasticized PVC 1.1 to 1.7
Refractive index: 1.53 to 1.56

Water retention (fibres) at 65% r.h. 8%

Specific Heat: Rigid PVC 0.25
               Plasticized PVC 0.3 to 0.5

Conductivity: 0.0003cal/cm s deg.C

Coefficient of linear expansion: Rigid PVC, 0.00007
                                 Plasticized PVC, 0.00025

Dielectric constant: 3.0 at 800 Hz

Mechanical Properties
Elastic Modulus: Rigid PVC, 280(daN/mm2)
                 Plasticized PVC 0.3 to 1.9 (daN/mm2)
Tensile strength: Rigid PVC, 4.2 to 5.5 (daN/mm2)
                  Fibres, 20 (daN/mm2)
                  Plasticized, 200-450(daN/mm2)
Extension at break: Rigid PVC, 5 to 25%
                    Plasticized PVC, 200 to 450%
Flexural strength: Rigid PVC, 9.5 (daN/mm2)
                   Plasticized PVC, 8.5(daN/mm2)
Compression strength: Rigid PVC, 5.5 to 6.8 (daN/mm2)
Impact strength(Izod): Rigid PVC, 0.8 (ft lb/in)
             impact modified PVC, up to 15 (ft lb/in)
Hardness (Rockwell): Rigid PVC, R110 to R120
                     Plasticized PVC (Shore A) 50 to 100
Friction: 0.4 to 0.45