PC (polycarbonate) – carbon fibres
Reinforced carbon fibres
✓ This material meets the criteria ~ Specialized grades may meet this criteria
| Density | 1.23 to 1.43 g/cm³ ISO 1183 |
|---|---|
| Charpy notched impact | 4.9 to 9.1 kJ/m2 |
| Flexural modulus | 6490 to 16800 MPa ISO 178 |
| Flexural resistance | 190 MPa |
| Tensile modulus | 7230 to 19100 MPa ISO 527-1 |
| Tensile resistance | 93.2 to 166 MPa ISO 527-1, -2, Break |
| Tensile strain | 1.2 to 2.7 % ISO 527-1, -2, Yield |
CF grades require slightly higher temperatures and pressures. Very abrasive → carbide tooling is mandatory. Almost isotropic shrinkage is very low. Electrical conductivity must be taken into account in the design of parts.
The PC is recyclable (code 7). Chemical depolymerisation allows for the recovery of BPA and diphenyl carbonate. Mechanical recycling is common in industry but degrades transparency and impact resistance after several cycles.
PC-FDA grades are approved for food contact. Beware of older grades that may contain BPA. Modern BPA-free grades comply with EU regulation 10/2011 for certain uses. Always check the specific grade.