PEEK Fiber

PEEK Fiber is a high-performance thermoplastic material offered by Goodfellow in 16 variations. Characterized by its excellent mechanical and chemical resistance properties, as well as its ability to perform in high temperature environments, PEEK Fiber is commonly used in aerospace, automotive, and oil and gas industry where durability and thermal stability are critical. With our selection of PEEK Fiber being available in an array of sizes and specifications, engineers can find the optimal solution for even the most demanding design projects.

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Properties

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$218.87each
5+ for $177.29ea
10+ for $161.97ea

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$272.75each
5+ for $220.93ea
10+ for $201.84ea

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$320.24each
5+ for $259.40ea
10+ for $236.98ea

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$405.19each
5+ for $328.20ea
10+ for $299.84ea

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Tolerances

Fiber

Filament Diameter		±25%
Number Of Yarns		±10%
Number Of Filaments		±10%
Tex Number		±10%
Length		+5% / -1%

Material Properties for Polymers

Chemical Resistance

Element	Value
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

Mechanical Properties

Element	Value
Coefficient of friction	0.18
Hardness - Rockwell	M99
Poisson's ratio	0.4
Elongation at break( % )	50
Tensile modulus( GPa )	3.7-4
Izod impact strength( J m⁻¹ )	85
Tensile strength( MPa )	70-100

Electrical Properties

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

Physical Properties

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

Thermal Properties

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