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