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) – glass fibres
PEEK
PEEK (Polyétheréthercétone) – fibres de verre
Polyketone (PK)
Reinforced fibreglass
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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 | 1.50 to 1.54 g/cm³ ISO 1183 |
|---|---|
| Charpy notched impact | 2.9 to 12 kJ/m2 |
| Flexural modulus | 5490 to 36500 MPa ISO 178 |
| Flexural resistance | 240 MPa |
| Tensile modulus | 5850 to 13300 MPa ISO 527-1 |
| Tensile resistance | 79.0 to 188 MPa ISO 527-1, -2 |
| Tensile strain | 2.0 to 3.5 % ISO 527-1, -2, 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
GF grades require higher injection pressures. Strongly anisotropic shrinkage (perpendicular to fibres > along axis). Increased nozzle and mould wear — nitrided steels recommended. Drying identical to base grade.
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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