Krefine Data Sheet

||Krefine Data Sheet
Krefine Data Sheet2017-01-23T09:54:28+00:00

Krefine is a conductive polymer composite consisting of conductive fillers (i.e., carbon black, carbon fiber, graphite, metal fiber) suspended in an insulating polymer.

Mechanical ASTM Test Method Krefine EKH-SS07 Krefine EKH-SS09 Krefine EKH-SS11 Units
Strength to Weight Ratio - - - - ksi
Specific Gravity @73 F D792 1.33 1.31 1.31 -
Tensile Strength @73 F, (ult)/(yld) D638 140 135 110 psi
Tensile Modulus of Elasticity @73 F D638 - - - psi
Tensile Elongation at Break @73 F D638 2.5 3.0 3.5 %
Flexural Strength @73 F D790 200 190 170 psi
Flexural Modulus of Elasticity @73 F D790 10,000 8,000 6,000 psi
Shear Strength @73 F D732 - - - psi
Comprehensive Strength, (% Deformation) @73 F D695 180 172 155 psi
Comprehensive Modulus of Elasticity @73 F D695 9,000 7,500 5,820 psi
Hardness, Rockwell, Scale as noted @73 F D785 M-125 M-125 M-125 -
Hardness, Durometer, Shore D @73 F D2240 - - - -
Izod Impact, (Notched) @73 F D256 Type A 30 30 30 ft-lb/in of notch
Coefficient of Friction, (Dry vs Steel) Dynamic - - - - -
Limiting PV, (with 4 to 1 factor of safety applied) - - - - psi-ft/min
Thermal ASTM Test Method Krefine EKH-SS07 Krefine EKH-SS09 Krefine EKH-SS11 Units
Coefficient of Linear Thermal Expansion @73 F E-831 (TMA) 1.5 1.5 1.5 in/in/F
Heat Deflection Temperature @264 psi D648 305 305 280 F
Tg-Glass transition termperature, (Amorphous) D3418 143 143 143 F
Melting Point, (VS=Vicat Softening Temp.) D3418 - - - F
Continuous Service Temperature in Air, (Max.) - 260 260 260 F
Thermal Conductivity - - - - BTU-in/hr-ft2-F
Electric ASTM Test Method Krefine EKH-SS07 Krefine EKH-SS09 Krefine EKH-SS11 Units
Dielectric Strength, Short Term D149 - 2 5 Volts/mil
Volume Resistivity D257 10 E6-7 10 E7-9 10 E9-11 ohm-cm
Dielectric Constant @10E6 Hz D150 7.9 6.6 5.3 -
Dissipation Factor @10E6 Hz D150 0.22 0.21 1.16 -
Flammability @3.1 mm unless noted UL94 V-0 V-0 V-0 -
H2O ASTM Test Method Krefine EKH-SS07 Krefine EKH-SS09 Krefine EKH-SS11 Units
Water Absorption, Immersion, 24 hours D570(7) 0.4 0.4 0.4 % by weight
Water Absorption, Saturation D570(7) 0.6 0.6 0.6 % by weight