Le PE présente une excellente résistance chimique générale : acides, bases, solvants polaires et solutions salines. Sensible aux solvants aromatiques et chlorés à chaud. Perméabilité aux gaz plus élevée que PET ou PA. Inertie chimique idéale pour l'emballage alimentaire.
HDPE (High-density polyethylene), UHMW
PE
HDPE (High-Density Polyethylene), UHMW
Commodity Plastics
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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 | 0.946 to 0.964 g/cm³ ASTM D1505 |
|---|---|
| Charpy notched impact | 4.0 to 28 kJ/m2 |
| Flexural modulus | 581 to 1330 MPa ASTM D790 |
| Flexural resistance | 25 MPa |
| Tensile modulus | 800 MPa |
| Tensile resistance | 19.0 to 32.3 MPa ASTM D638, Yield |
| Tensile strain | 94 to 360 % ISO 527-1, -2, Break |
Chemical resistance and characteristics
Chemical resistance
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Recommended applications
- Food and household packaging, water and gas pipes, tanks and containers, packaging films, geomembranes, toys, laboratory equipment, chemical containers, caps, cable sheathing
Frequently asked questions
Injection at 180–250 °C, mould at 20–60 °C. Low viscosity → good filling. High shrinkage (1.5–3.0 %) → adjustment of mould dimensions essential. Crystallisation influenced by cooling rate. No pre-drying required.
HDPE (code 2, LDPE code 4) is one of the most recycled plastics globally. Well-established collection streams. Mechanical recycling is common. The value of recycled material is significant.
PE is one of the most approved materials for food contact (FDA, EU regulation, EFSA). Widely used in food packaging, drinking water pipes (HDPE PE 100), and bottles. Excellent chemical inertness for all types of food.
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