30% Carbon Fiber (30 CF) PAI
30 CF PAI is a grade of PAI. The graph bars on the material properties cards below compare 30 CF PAI to: imide 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
Compressive (Crushing) Strength
300 MPa 44 x 103 psi
Elastic (Young's, Tensile) Modulus
8.3 GPa 1.2 x 106 psi
Elongation at Break
4.3 %
Flexural Strength
320 MPa 46 x 103 psi
Impact Strength: Notched Izod
45 J/m 0.84 ft-lb/in
Tensile Strength: Ultimate (UTS)
180 MPa 26 x 103 psi
Thermal Properties
Glass Transition Temperature
280 °C 530 °F
Heat Deflection Temperature At 1.82 MPa (264 psi)
280 °C 530 °F
Maximum Temperature: Autoignition
530 °C 980 °F
Maximum Temperature: Decomposition
490 °C 910 °F
Maximum Temperature: Mechanical
260 °C 500 °F
Specific Heat Capacity
910 J/kg-K 0.22 BTU/lb-°F
Thermal Conductivity
0.5 W/m-K 0.29 BTU/h-ft-°F
Thermal Expansion
15 µm/m-K
Otherwise Unclassified Properties
Density
1.4 g/cm3 90 lb/ft3
Limiting Oxygen Index (LOI)
45 %
Water Absorption After 24 Hours
0.3 %
Water Absorption At Saturation
1.5 %
Common Calculations
Stiffness to Weight: Axial
3.2 points
Stiffness to Weight: Bending
47 points
Strength to Weight: Axial
34 points
Strength to Weight: Bending
49 points
Thermal Diffusivity
0.38 mm2/s
Thermal Shock Resistance
110 points
Followup Questions
Further Reading
Reinforced Plastics Durability, Geoffrey Pritchard (editor), 1999
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