Le PET présente une bonne résistance aux acides dilués, alcools et huiles minérales à T° ambiante. Sensible à l'hydrolyse en milieu acide ou basique à chaud. Dégradation progressive par les UV sans stabilisants. Le PETG est plus résistant au stress-cracking chimique.
PET (Polyethylene terephthalate)
PET
PET (polyethylene terephthalate)
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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 | 1.27 to 1.42 g/cm³ ISO 1183 |
|---|---|
| Charpy notched impact | 1.0 to 9.1 kJ/m2 |
| Flexural modulus | 1690 to 2120 MPa ISO 178 |
| Flexural resistance | 110 MPa |
| Tensile modulus | 2060 to 3030 MPa ISO 527-1 |
| Tensile resistance | 24.0 to 58.7 MPa ISO 527-1, -2, Break |
| Tensile strain | 3.9 to 4.0 % 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
Injection between 265–290 °C, mould at 10–30 °C (amorphous) or 130–150 °C (semi-crystalline). Pre-drying imperative: 4–6 h at 160 °C. Highly hygroscopic → hydrolytic degradation if damp.
PET (code 1) is the most widely recycled plastic in the world. Well-established recycling processes enable the production of food-grade r-PET for bottles, textile fibres and engineering components. The target is 90% collection in the EU by 2029.
PET is the standard for food packaging (FDA, EFSA, EU Regulation 10/2011). Approved for all types of food, including carbonated drinks, oils, and acidic foods. Recycled r-PET can be certified food-grade after approved decontamination.
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