| About |
|---|
| Product Description | |
|---|---|
| Supplier | Covestro |
| Generic | Polycarbonate |
| Material Status | Commercial: Negative |
| Features | Low Viscosity |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.20 | g/cm³ | ISO 1183 |
| Melt Flow Rate | |||
| 300℃，1.2 kg | 20 | g/10min | ISO 1133 |
| Melt Volume Rate | |||
| 300℃，1.2 kg | 19.0 | cm³/10min | ISO 1133 |
| Shrinkage rate | |||
| TD | 0.50 – 0.70 | % | ISO 2577 |
| MD | 0.50 – 0.70 | % | ISO 2577 |
| Water absorption rate | |||
| Saturation, 23 ℃ | 0.30 | % | ISO 62 |
| Equilibrium, 23 ℃, 50% RH | 0.12 | % | ISO 62 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Charpy Notched Impact Strength | ISO 7391 | ||
| 23℃，3 mm | 70 | kJ/m² | ISO 7391 |
| Charpy impact strength | |||
| 23℃，3 mm | No Break | ISO 179/1eU | |
| Impact strength of cantilever beam notch | |||
| 23℃，3 mm | 60 | kJ/m² | ISO 7391 |
| Multi axial instrumented impact energy | |||
| -30℃ | 65 | J | ISO 6603-2 |
| 23℃ | 55 | J | ISO 6603-2 |
| Multi axial instrumented peak impact force | |||
| -30℃ | 6000 | N | ISO 6603-2 |
| 23℃ | 5100 | N | ISO 6603-2 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed | 120 | ℃ | ISO 75-2/A |
| 0.45 MPa, unannealed | 132 | ℃ | ISO 75-2/B |
| Vicat Softening Temp | |||
| B50 | 139 | ℃ | ISO 306 |
| B120 | 140 | ℃ | ISO 306/B120 |
| Linear coefficient of thermal expansion | |||
| MD：23~55℃ | 6.5E-5 | 1/℃ | ISO 11359-2 |
| TD：23~55℃ | 6.5E-5 | 1/℃ | ISO 11359-2 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Tensile modulus | |||
| 23℃，1 mm/min | 2400 | MPa | ISO 527-1,-2 |
| tensile strength | |||
| Fracture, 23 ℃, 50 mm/min | 70.0 | MPa | ISO 527-1,-2 |
| Yield, 23 ℃, 50 mm/min | 67.0 | MPa | ISO 527-1,-2 |
| Tensile strain | |||
| Fracture, 23 ℃, 50 mm/min | 120 | % | ISO 527-1,-2 |
| Yield, 23 ℃, 50 mm/min | 6.1 | % | ISO 527-1,-2 |
| Nominal tensile fracture strain | |||
| 23℃，50 mm/min | > 50 | % | ISO 527-2/50 |
| Bending modulus | |||
| 23℃，2 mm/min | 2400 | MPa | ISO 178 |
| bending strength | ISO 178 | ||
| 3.50% strain, 23 ℃, 2 mm/min | 74.0 | MPa | ISO 178 |
| 23℃，2 mm/min | 100 | MPa | ISO 178 |
| Bending strain | 7.0 | % | ISO 178 |
| Ball hardness | 118 | N/mm² | ISO 2039-1 |
| Process Conditions | |||
|---|---|---|---|
| Injection | Nominal value | Unit | Test method |
| Melt Temperature | 280 – 320 | ℃ | |
| Standard melt temperature | 300 | ℃ | |
| Temperature of the feeding section of the material pipe | 250 – 260 | ℃ | |
| Temperature of the middle section of the material pipe | 270 – 290 | ℃ | |
| Temperature of the front section of the material pipe | 280 – 290 | ℃ | |
| Nozzle temperature | 290 – 300 | ℃ | |
| Mold temperature | 80 – 120 | ℃ | |
| Maintaining pressure (actual maximum injection pressure) | 50 – 75 | % | |
| Melt back pressure | 50 – 150 | bar | |
| Screw speed | 0.05 – 0.2 | m/s | |
| Injection volume | 30 – 70 | % | |
| Drying temperature under dry air | 120 | ℃ | |
| Drying time in dry air | 2 – 3 | h | |
| Maximum moisture content | ≤0. 02 | % | |
| Depth of exhaust groove | 0. 025 – 0. 075 | mm | |
| Notes |
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