PEEK - Polieteroketon
PEEK is a high performance material with the unusual combination of high temperature resistance, excellent chemical resistance, and superb mechanical characteristics. The top operating temperature in air is about 250°C and for short-term operation up to 310°C.
| Properties | Unit | Value | Test method |
| General properties | |||
| Density | g/cm3 | 1,31 | ISO 1183 |
| Moisture absorption till saturation (in normal climate 23°C) | % | 0,2 | ISO 62 |
| Water absorption till saturation (in water at 23°C) | % | 0,45 | ISO 62 |
| Mechanical properties | |||
| Tensile stress at field (v = 50 mm/min) | N/mm2 | 110 | ISO 527 - 2 |
| Tensile stress at break (v = 5 mm/min) | N/mm2 | - | ISO 527 - 2 |
| Nominal percentage elongation at break | % | 20 | ISO 527 - 2 |
| Tensile modulus of elasticity | N/mm2 | 4400 | ISO 527 - 2 |
| Flexural modulus of elasticity | N/mm2 | - | ISO 178 |
| Ball indentation hardness, 30 sec. value (Value przy 30 sek.) | N/mm2 | 230 | ISO 2039 - 1 |
| Rockwell hardness | M 105 | - | ISO 2039 - 2 |
| Notched impact strength wg Charpy’ego (23°C) | kJ/m2 | without friction | ISO 179/1eU |
| Notched impact strength wg Charpy’ego (23°C) | kJ/m2 | 3,5 | ISO 179/1eA |
| Thermal properties | |||
| Temperature for using in air (maximum) | °C | 310 | max. short-term |
| Temperature for using in air (maximum) | °C | 250 | max. long-term |
| Temperature for using in air (minimum) | ° | - | - |
| Heat distortion temperature (HDT A process) | ° | 160 | ISO 75 - 2 |
| Coefficient of linear expansion, at length (23-60) °C | 10-4/K | 0,5 | DIN 53752 |
| Thermal conductivity at 23°C | W/(K*m) | 0,25 | DIN 52612 |
| Flammability according to UL standard | grade | V 0 | UL 94 |
| Vicat softening temperature (VST/B/50) | ° | - | ISO 306 |
| Melting point DSC (10K/min) | ° | 340 | ISO 3146 |
| Electrical properties | |||
| Specific insulation resistance [>] | Ohm*m | 1012 | IEC 60093 |
| Specyficzny Surface resistance [>] | Ohm | 1013 | IEC 60093 |
| Dielectric constant (przy 1 MHz*) | 106 Hz | 3,6 | IEC 60250 |
| Dielectric constant (przy 100 MHz*) | 102 Hz | 3,2 | IEC 60250 |
| Dissipation factor (przy 1 MHz*) | 106 Hz | 0,002 | IEC 60250 |
| Dissipation factor (przy 100 MHz*) | 102 Hz | 0,001 | IEC 60250 |
| Dielectric strength K20/K20 (w oleju transformatorowym) | kV/mm | 24 | IEC 60243 - 1 |
| Comparative tracking index (CTI) | - | 150 | IEC 60112 |