Le PEEK offre une résistance chimique quasi universelle : excellente tenue aux acides concentrés, bases, solvants organiques, huiles et carburants. Seuls les acides forts oxydants (H2SO4 concentré, HNO3 fumant) et les solvants très polaires à chaud peuvent l'affecter.
PEEK (Polyetheretherketone) – carbon nano-charge
PEEK
PEEK (Polyétheréthercétone) – nano-charge carbone
Polyketone (PK)
Reinforced carbon nanotubes
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Injection Moulding
Transparent Food Contact Recycled Biobased flame-retardant UV resistant
✓ This material meets the criteria ~ Specialized grades may meet this criteria
Quality Scores
Mechanics
Thermal
Chemical
UV ageing
Injection moulding difficulty
Recycling
Performance profile
Mechanical properties
| Density | 1.32 to 1.49 g/cm³ ASTM D792 |
|---|---|
| Charpy notched impact | 6 kJ/m2 |
| Flexural modulus | 4110 to 12900 MPa ASTM D790 |
| Flexural resistance | 160 MPa |
| Tensile modulus | 3920 to 13100 MPa ASTM D638 |
| Tensile resistance | 82.7 to 190 MPa ASTM D638 |
| Tensile strain | 2.0 to 3.0 % ASTM D638, Yield |
Chemical resistance and characteristics
Chemical resistance
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Recommended applications
- Film
- General purpose
- Containers
- Packaging
- Bags
- Tanks
- Food packaging
- Industrial applications
- Soufflé film
- Plumbing
Frequently asked questions
Injection at 360–400 °C, mould at 150–200 °C. Strict pre-drying: 6–8 hours at 150 °C. Requires high-performance injection moulding machines with a thermal barrier. Very high viscosity → high injection pressure. Moderate shrinkage (1.0–1.5 %).
PEEK is difficult to recycle economically. Production scrap is carefully recovered and reground for mixing into filled grades. Chemical recycling remains in the research stage.
Certain PEEK grades are approved for food contact (FDA, EU Regulation 10/2011) and medical applications (USP Class VI, ISO 10993). They are used in high-temperature food processing equipment and sterilisable surgical instruments.
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