Other properties :

Mechanical properties :

PVC is very hardness and mechanical attributes. The mechanical properties enhance with the molecular weight increasing, but reduce with the temperature increasing. The mechanical properties of rigid PVC (UPVC) is very good, the elastic modulus can reach to 1500-3,000 MPa. The soft PVC (Flexible PVC) flexible is 1.5-15 MPa. However, elongation at break is up to 200% -450%. PVC friction is ordinary, the static friction factor is 0.4-0.5, the dynamic friction factor is 0.23.

Thermal properties :

The heat stability of PVC is very poor, when temperature achieving to 140 °C PVC starts to decompose. It’s Melting point is 160 °C. The linear expansion coefficient of the PVC is small and has flame retardancy, the oxidation index is up to 45 or more. Therefore, the addition of a heat stabilizer throughout the process is needed in order to guarantee the product's properties.

Electrical properties :

PVC is a kind of polymer with good insulation properties but because of its higher polar nature the electrical insulating property is inferior to non-polar polymers such as polyethylene and polypropylene. As the dielectric constant, dielectric loss tangent value and volume resistivity are high , the corona resistance is not so good, it is normally appropriate for medium or low voltage and low frequency insulation materials.