Unfilled Polyetherketoneketone (PEKK)
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Unfilled Polyetherketoneketone (PEKK)
 

Thermo-Physical Properties

PROPERTYUNITVALUE / RANGE
Melting Point °C300 - 360
Density (23°C)g mL-1 1.27 - 1.29
Coefficient of Thermal Expansion x 10-5cm / (cm °C) 2.30 - 2.65
Heat Deflection Temperature, 0.5 MPa °C  
Heat Deflection Temperature, 1.8 MPa °C 139 - 175
Thermal ConductivityW / mK  
Rockwell Hardness,  M Scalen/a  
   
 

Mechanical Properties at 23 °C

PROPERTY UNITVALUE / RANGE
Tensile Strength, Yield at 23 C MPa 88 - 112
Tensile Strength, Break at 23 C MPa 70 - 105
Elongation, Yield % 5.2 - 5.4
Elongation, Break % 20 - 100
Tensile Modulus at 23 C GPa 2.9 - 3.8
Flexural Strength, max MPa 128 - 168
Flexural Modulus  GPa 3.0 - 3.9
Compressive Strength MPa 
Charpy Notched kJ / m2 4.0 - 5.5
Charpy Unnotched kJ / m2 No Break, 22 - 62
 

Electrical Properties

PROPERTY UNITVALUE / RANGE
Volume Resistivity
Ohm-cm1016
 Dielectric Strength V/mm x 104 8.4
Dielectric Constant @ 1 MHz n/a 2.5 - 2.6
Dissipation Factor @ 1 MHz n/a  
 

Other Properties

PROPERTY UNITVALUE / RANGE
Processing Temperature
°C320 - 360
Mold Shrinkage %  
Continuous Service Temperature °C 255
Water Absorption, 24 hr. Immersion% 0.2 - 0.5
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