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Low Plasticizer CA

Low plasticizer CA is a grade of CA. The graph bars on the material properties cards below compare low 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

25 %

Flexural Modulus

2.1 GPa 0.3 x 106 psi

Flexural Strength

55 MPa 8.0 x 103 psi

Tensile Strength: Ultimate (UTS)

37 MPa 5.4 x 103 psi

Tensile Strength: Yield (Proof)

33 MPa 4.8 x 103 psi

Thermal Properties

Glass Transition Temperature

230 °C 450 °F

Heat Deflection Temperature At 1.82 MPa (264 psi)

75 °C 170 °F

Heat Deflection Temperature At 455 kPa (66 psi)

85 °C 190 °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

110 °C 230 °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 10x Ω-m

Otherwise Unclassified Properties

Density

1.3 g/cm3 81 lb/ft3

Limiting Oxygen Index (LOI)

17 %

Refractive Index

1.5

Water Absorption After 24 Hours

2.3 %

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

8.9 MJ/m3

Strength to Weight: Axial

7.9 points

Strength to Weight: Bending

19 points

Thermal Diffusivity

0.13 mm2/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