TPO (Thermoplastic Olefin) – glass fibres
Reinforced fibreglass
✓ This material meets the criteria ~ Specialized grades may meet this criteria
| Density | 0.970 to 1.15 g/cm³ ISO 1183 |
|---|---|
| Charpy notched impact | 6.0 to 12 kJ/m2 |
| Flexural modulus | 4250 to 6150 MPa ISO 178 |
| Flexural resistance | 160 MPa |
| Tensile modulus | 4030 to 5900 MPa ISO 527-1 |
| Tensile resistance | 48.4 to 86.9 MPa ISO 527-1, -2, Break |
| Tensile strain | 3.0 to 4.1 % ISO 527-1, -2, Break |
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.
PLA is industrially compostable (EN 13432) in 12 weeks at 55 °C. Mechanical recycling is possible but the systems are not well-developed as PLA contaminates PET and PE streams. Specific collection systems are therefore required.
PLA is FDA and EFSA approved for food contact at ambient temperature. Used in cold food packaging (salads, yoghurts). Do not use in contact with hot food (> 50 °C) or in microwave ovens.