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Polyetheretherketone ( PEEK )

Material Information

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Standard products are available in these forms
Fiber Film Granule Mesh Monofilament Powder Rod Sheet Tube
Fiber Film Granule Mesh Monofilament Powder Rod Sheet Tube

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Common Brand Names:
Victrex, Zyex
 
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. PEEK is amber in color and usually semi-crystalline and opaque, except thin films are usually amorphous and transparent. 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 available as special order items.

Applications include flexible PCBs (film), fibers and monofilaments, injection moulded engineering components and items used in aerospace and radiation environments.

   

Chemical Resistance

Acids - concentrated Good-Poor
Acids - dilute Good
Alcohols Good
Alkalis Good
Aromatic hydrocarbons Good
Greases and Oils Good
Halogenated Hydrocarbons Good
Halogens Good-Poor
Ketones Good-Poor

Electrical Properties

Dielectric constant @1kHz 3.2-3.3 @ 50Hz-10Khz
Dielectric strength ( kV mm-1 ) 190 @ 50µm
Dissipation factor @ 1MHz 0.003
Volume resistivity ( Ohmcm ) 1015-1016

Mechanical Properties

Coefficient of friction 0.18
Elongation at break ( % ) 50
Hardness - Rockwell M99
Izod impact strength ( J m-1 ) 85
Poisson's ratio 0.4
Tensile modulus ( GPa ) 3.7-4.0
Tensile strength ( MPa ) 70-100

Physical Properties

Density ( g cm-3 ) 1.26 - 1.32
Flammability V-0 @ 1.5mm
Limiting oxygen index ( % ) 35
Radiation resistance Good
Resistance to Ultra-violet Fair
Water absorption - equilibrium ( % ) 0.5
Water absorption - over 24 hours ( % ) 0.1-0.3

Thermal Properties

Coefficient of thermal expansion ( x10-6 K-1 ) 47/108
Heat-deflection temperature - 0.45MPa ( C ) >260
Heat-deflection temperature - 1.8MPa ( C ) 160
Specific heat ( J K-1 kg-1 ) 1340
Thermal conductivity @23C ( W m-1 K-1 ) 0.25
Upper working temperature ( C ) 250

Properties for Polyetheretherketone Chopped Fiber

Property Value
Density g cm-3 1.30
Extension to break % 19
Modulus - 10 % GPa 4.2
Modulus - 2 % cN/Tex 500
Modulus - 5 % GPa 4.35
Shrinkage @180C % 1.1
Tenacity - Knot cN/Tex 36
Tenacity - Loop cN/Tex 40
Specific Tenacity cN/tex 61
Tensile strength MPa 790

Properties for Polyetheretherketone Fiber

Property Value
Density g cm-3 1.30
Extension to break % 19
Modulus - 10 % GPa 4.2
Modulus - 2 % cN/Tex 500
Modulus - 5 % GPa 4.35
Shrinkage @180C % 1.1
Tenacity - Knot cN/Tex 36
Tenacity - Loop cN/Tex 40
Specific Tenacity cN/tex 61
Tensile strength MPa 790

Properties for Polyetheretherketone Film

Property Value
Density g cm-3 1.26 - amorphous
Dielectric Constant @ 1MHz 3.3
Dielectric Strength @25µm thick kV mm-1 110-150
Dissipation Factor @1MHz 0.005
Extension to break - Longitudinal % 240
Extension to break - Transverse % 240
Flammability VTM-1 @ 0.1mm
Initial Tear Strength g µm-1 35-50
Permeability to Oxygen @25C x10-13 cm3. cm cm-2 s-1 Pa-1 0.1
Permeability to Water @38C x10-13 cm3. cm cm-2 s-1 Pa-1 200
Shrinkage % 0.5 @150C
Specific Heat kJ kg-1 K-1 1.45
Tensile modulus - Longitudinal GPa 2.6
Tensile modulus - Transverse GPa 2.6
Tensile strength - Longitudinal MPa 120
Tensile strength - Transverse MPa 120

Properties for Polyetheretherketone Monofilament

Property Value
Material Type A Type B Type C
Density g cm-3 1.30 1.30 1.30
Extension to break % 38 35 20
Modulus - 10 % GPa 1.85 2.8 3.4
Modulus - 2 % cN/Tex 382 438 474
Modulus - 5 % GPa 2.7 3.7 3.9
Shrinkage @180C % 1.8 8.4 3.0
Tenacity cN/Tex 34 30 60
Tenacity - Knot cN/Tex 28 23 34
Tenacity - Loop cN/Tex 25 19 17
Tensile strength GPa 0.44 0.39 0.78

Buy Polyetheretherketone on-line

Standard products are available in these forms
Fiber Film Granule Mesh Monofilament Powder Rod Sheet Tube
Fiber Film Granule Mesh Monofilament Powder Rod Sheet Tube

Choose a form to search our on-line catalog  

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