PEKK (polyetheretherketone) is a high-performance semicrystalline aromatic polyketone belonging to the PEEK family of polymers, offering excellent thermal stability, chemical resistance, and mechanical strength at elevated temperatures. It is widely used in aerospace, automotive, and oil & gas industries where components must withstand demanding thermal and chemical environments—including aircraft fuel system components, engine nacelle parts, and downhole drilling tools. Engineers select PEKK over standard engineering plastics when weight savings and high-temperature performance are critical, and over PEEK when slightly different thermal or processing characteristics provide advantages for specific applications.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Strength(σc) | 246.0 | MPa | — | ||
Elongation at Break(εf) | 11.50 | - | — | ||
Flexural Strength (MOR)(σf) | 119.0 | MPa | — | ||
Hardness (Vickers)(HV) | 412.3 | HV | — | ||
Ultimate Tensile Strength(σUTS) | 101.7 | MPa | — | ||
Young's Modulus(E) | 3.016 | GPa | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | 432.8 | K | — | ||
Melting Point / Solidus(Tm) | 607.7 | K | — | ||
Maximum Service Temperature(Tmax) | 718.2 | K | — |