"PEEK" redirects here. For the command in computing, see PEEK and POKE.
Polyether ether ketone
Identifiers
PubChem CID
19864017
Properties
Chemical formula
(C19H12O3)n
Molar mass
288.3 g/mol
Density
1320 kg/m3
Melting point
343 °C (649 °F; 616 K)
Related compounds
Related compounds
Hydroquinone
4,4'-Difluorobenzophenone
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chemical compound
Polyether ether ketone
Physical properties
Density (ρ)
1320 kg/m3
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)
[1]
Polyether ether ketone (PEEK) is a colourless organic thermoplastic polymer in the polyaryletherketone (PAEK) family, used in engineering applications. It was invented in November 1978[2] and brought to market in the early 1980s by part of Imperial Chemical Industries (ICI) that later became Victrex PLC.[3]
^van der Vegt, A.K.; Govaert, L.E. (2003). Polymeren, van keten tot kunstof (in Dutch) (5th ed.). DUP Blue. ISBN 90-407-2388-5.
^"Victrex celebrates 40 years of PEEK success". Victrex. Retrieved 2021-11-01.
^"Why PEEK?". drakeplastics.com. Retrieved 23 April 2018.
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