Polyether ether ketone
| Identifiers | |
|---|---|
PubChem CID |
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| Properties | |
| (C19H12O3)n | |
| Molar mass | 288.3 g/mol |
| Density | 1.32 g/cm3 |
| Melting point | 343 °C (649 °F; 616 K) |
| Related compounds | |
Related compounds |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
| Polyether ether ketone | |
|---|---|
| Physical properties | |
| Density (ρ) | 1.32 g/cm3 |
| Water absorption—over 24 hours | 0.1% |
| Mechanical properties | |
| Young's modulus (E) | 3.6 GPa |
| Tensile strength (σt) | 90–100 MPa |
| Elongation (ε) at break | 50% |
| Notch test | 55 kJ/m2 |
| Thermal properties | |
| Melting temperature (Tm) | 343 °C |
| Glass transition temperature (Tg) | 143 °C |
| Thermal conductivity (k) | 0.25 W/(m⋅K) |
Polyether ether ketone (PEEK) is a beige coloured organic thermoplastic polymer in the polyaryletherketone (PAEK) family, used in engineering applications. It was invented in November 1978 and brought to market in the early 1980s by part of Imperial Chemical Industries (ICI), the PEEK division was acquired through a management buyout, giving rise to Victrex PLC.