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Polyetherketoneketone ( PEKK )

Material Information

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We stock and supply the following standard forms:
Granule
Granule

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General Description:  

General Description : A high performance thermoplastic with the characteristics common to this group - strong, stiff, hard, high temperature resistance, good chemical resistance and inherently low flammability and smoke emission. It also has very good resistance to wear, dynamic fatigue and radiation, but it is difficult to process and very expensive. Filled grades, including ones designed for bearing-type applications, are also used.

Applications include flexible printed circuit boards (film), fibres and monofilaments, injection moulded engineering components and items used in aerospace and radiation environments.

   

Electrical Properties

Dielectric constant @1kHz 3.3
Dielectric strength ( kV mm-1 ) 23.6
Dissipation factor @ 1kHz 0.004
Surface resistivity ( Ohm/sq ) 2x1016
Volume resistivity ( Ohmcm ) 1016

Mechanical Properties

Coefficient of friction 0.26
Compressive strength ( MPa ) 206
Elongation at break ( % ) 12
Hardness - Rockwell M88
Izod impact strength ( J m-1 ) 69
Tensile modulus ( GPa ) 4.5
Tensile strength ( MPa ) 110

Physical Properties

Density ( g cm-3 ) 1.31
Flammability V-0
Radiation resistance Good
Water absorption - over 24 hours ( % ) <0.20

Thermal Properties

Coefficient of thermal expansion ( x10-6 K-1 ) 38
Heat-deflection temperature - 1.8MPa ( C ) 175
Thermal conductivity @0.25C ( W m-1 K-1 )
Upper working temperature ( C ) 260
All information and technical data are given as a guide only. Although every effort has been made to ensure that the information is correct, no warranty is given as to its completeness or accuracy.

Buy Polyetherketoneketone on-line

We stock and supply the following standard forms:
Granule
Granule

Choose a form to search our on-line catalog  

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