# Plasticized (Flexible) Polyvinyl Chloride (PVC-P)

PVC-P is a thermoplastic, further classified as a polyvinyl plastic. It has a very low tensile strength and a moderately high ductility relative to other thermoplastics. The graph bars on the material properties cards below compare PVC-P to: polyvinyl plastics (top), all thermoplastics (middle), and the entire database (bottom). The length of each bar shows the given value as a % of the largest value in the relevant set.

## Mechanical Properties

Elastic (Young's, Tensile) Modulus

1.4 *GPa* 0.2 *x 10 ^{6} psi*

Elongation at Break

180 *%*

Impact Strength: Notched Izod

550 *J/m* 10 *ft-lb/in*

Poisson's Ratio

0.39

Tensile Strength: Ultimate (UTS)

16 *MPa* 2.2 *x 10 ^{3} psi*

## Thermal Properties

Glass Transition Temperature

75 *°C* 170 *°F*

Melting Onset (Solidus)

190 *°C* 370 *°F*

Specific Heat Capacity

1400 *J/kg-K* 0.33 *BTU/lb-°F*

Thermal Conductivity

0.17 *W/m-K* 0.1 *BTU/h-ft-°F*

Thermal Expansion

160 *µm/m-K*

## Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz

5.8

Dielectric Strength (Breakdown Potential)

20 *kV/mm* 0.78 *V/mil*

Electrical Dissipation At 1 Hz

0.12

Electrical Resistivity Order of Magnitude

11 *10 ^{x} Ω-m*

## Otherwise Unclassified Properties

Density

1.4 *g/cm ^{3}* 85

*lb/ft*

^{3}Limiting Oxygen Index (LOI)

44 *%*

Water Absorption After 24 Hours

0.45 *%*

## Common Calculations

Stiffness to Weight: Axial

0.57 *points*

Stiffness to Weight: Bending

28 *points*

Strength to Weight: Axial

3.2 *points*

Strength to Weight: Bending

10 *points*

Thermal Diffusivity

0.090 *m ^{2}/s*

Thermal Shock Resistance

4.9 *points*

## Followup Questions

## Further Reading

SPI Plastics Engineering Handbook of the Society of the Plastics Industry, Inc., 5th ed., Michael L. Berins (editor), 2000

Modern Plastics Handbook, Charles A. Harper (editor), 1999

Plastics Materials, 7th ed., J. A. Brydson, 1999