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Formula: PEEK
Form: Granules
Material: PEEK
CAS Number: 29658-26-2
Commodity: Polymers
Nominal Granule Size:
6mm
Viscosity:
Medium Viscosity
PEEK Granules are a high-performance thermoplastic offered in a variety of 14 forms and sizes. This extensive range provides options for different mechanical, thermal and chemical properties. The granular form makes PEEK suitable for injection molding, extrusion and compounding applications across aerospace, automotive, oil and gas, and semiconductor industries where heat resistance, stiffness and chemical resistance are required. PEEK's versatility sees it being used across a range of plastic components and high-tech composites.
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 |