# High Plasticizer CA

High plasticizer CA is a grade of CA. The graph bars on the material properties cards below compare high plasticizer CA to: cellulosic plastics (top), all thermoplastics (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

## Mechanical Properties

Elongation at Break

30 *%*

Flexural Modulus

1.7 *GPa* 0.25 *x 10 ^{6} psi*

Flexural Strength

40 *MPa* 5.8 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

30 *MPa* 4.4 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

26 *MPa* 3.8 *x 10 ^{3} psi*

## Thermal Properties

Glass Transition Temperature

230 *°C* 450 *°F*

Heat Deflection Temperature At 1.82 MPa (264 psi)

65 *°C* 150 *°F*

Heat Deflection Temperature At 455 kPa (66 psi)

75 *°C* 170 *°F*

Maximum Temperature: Autoignition

400 *°C* 740 *°F*

Maximum Temperature: Decomposition

250 *°C* 480 *°F*

Specific Heat Capacity

1500 *J/kg-K* 0.36 *BTU/lb-°F*

Thermal Conductivity

0.25 *W/m-K* 0.14 *BTU/h-ft-°F*

Thermal Expansion

14 *µm/m-K*

Vicat Softening Temperature

100 *°C* 210 *°F*

## Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 MHz

3.6

Dielectric Strength (Breakdown Potential)

15 *kV/mm* 0.59 *V/mil*

Electrical Resistivity Order of Magnitude

16 *10 ^{x} Ω-m*

## Otherwise Unclassified Properties

Density

1.3 *g/cm ^{3}* 81

*lb/ft*

^{3}Limiting Oxygen Index (LOI)

17 *%*

Refractive Index

1.5

Water Absorption After 24 Hours

2.3 *%*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

8.6 *MJ/m ^{3}*

Strength to Weight: Axial

6.4 *points*

Strength to Weight: Bending

17 *points*

Thermal Diffusivity

0.13 *mm ^{2}/s*

## 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