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Formula: PEEK
Form: Filament
Material: PEEK
CAS Number: 29658-26-2
Commodity: Polymers
PEEK Filament is a high performance thermoplastic from Goodfellow's extensive range of 3D printing materials. With 87 variations, PEEK offers excellent chemical and hydrolysis resistance, as well as high strength and stiffness even at elevated temperatures. This makes it ideal for use in demanding applications like aerospace components, oil and gas tooling, and automotive under-the-hood parts where thermal and chemical resistance is paramount. The range of PEEK filaments from Goodfellow enables optimization of printing parameters like layer adhesion and warpage behavior.
Tolerances
Filament
| Diameter | ±20% | |
|---|---|---|
| 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 |