| About |
|---|
| MVR (300 °C/1.2 kg) 19 cm³/10 min; general purpose; low viscosity; UV stabilized; easy release; injection molding – melt temperature 280 – 320 °C; available in transparent, translucent and opaque colors&& |
| Product Description | |
|---|---|
| Supplier | Covestro |
| Generic | Polycarbonate |
| Material Status | Commercial: Active |
| Features | Weather resistance is good,Low Viscosity,Good stripping performance |
| Availabilitys | Latin America,Africa & Middle East ,North America,Europe,Asia Pacific |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.2 | g/cm³ | ISO 1183 |
| Shrinkage rate | |||
| MD：2.0 mm | 0.65 | % | ISO 294-4 |
| TD：2.0 mm | 0.70 | % | ISO 294-4 |
| Water absorption rate | |||
| 23℃，24hr | 0.30 | % | ISO 62 |
| 23℃，50% RH | 0.12 | % | ISO 62 |
| Melt Flow Rate | |||
| 300℃，1.20kg | 19.0 | g/10min | ISO 1133 |
| optical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Refractive index | 1.58 | ISO 489 | |
| Transmittance | |||
| 1000 μm | 89.0 | % | ISO 13468-2 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 0.45 MPa, unannealed | 136 | ℃ | ISO 75-2/Bf |
| 1.8 MPa, annealed | 124 | ℃ | ISO 75-2/Af |
| Vicat Softening Temp | |||
| B50 | 143 | ℃ | ISO 306 |
| Linear coefficient of thermal expansion | |||
| MD | 6.5E-5 | 1/℃ | ISO 11359-2 |
| TD | 6.5E-5 | 1/℃ | ISO 11359-2 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Volumetric resistance | 1.0e+15 | Ω.cm | IEC 60093 |
| Surface resistance | 1.0E+16 | Ω.cm | IEC 60093 |
| Insulation strength | |||
| 25 | KV/mm | IEC 60243-1 | |
| Dielectric constant | |||
| 23℃ | 3.00 | 1 MHz | IEC 60250 |
| Dissipation factor | |||
| 23℃ | 5.0E-4 | 100 Hz | IEC 60250 |
| 23℃ | 9.0E-3 | 1 MHz | IEC 60250 |
| Compared to the leakage tracing index | 250 | V | IEC 60112 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | |||
| 0.75mm | V-2 | UL 94 | |
| 1.50mm | V-2 | UL 94 | |
| 2.60mm | V-2 | UL 94 | |
| 2.70mm | HB | UL-94 | |
| 3.00mm | HB | UL-94 | |
| 6.00mm | HB | UL-94 | |
| Extreme oxygen index | 27 | % | ISO 4589-2 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Charpy Notched Impact Strength | |||
| 23℃ | 65 | kJ/m² | ISO 179/1eA |
| -30℃ | 14 | kJ/m² | ISO 179/1eA |
| Impact strength of cantilever beam notch | |||
| 23℃ | 75 | kJ/m² | ISO 180-1A |
| -30℃ | 12 | kJ/m² | ISO 180-1A |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Ball hardness | 116 | MPa | ISO 2039-1 |
| tensile strength | |||
| 23℃ | 66.0 | MPa | ISO 527-2 |
| Tensile strain | |||
| Fracture, 23 ℃ | > 50 | % | ISO 527-2 |
| Tensile modulus | |||
| 23℃ | 2400 | MPa | ISO 527-2 |
| Tensile creep modulus | |||
| 1 Hr | 2200 | MPa | ISO 899-1 |
| 1000 Hr | 1900 | MPa | ISO 899-1 |
| bending strength | |||
| 23℃ | 98.0 | MPa | ISO 178 |
| Bending modulus | |||
| 23℃ | 2350 | MPa | ISO 178 |
| 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 – 270 | ℃ | |
| Temperature of the middle section of the material pipe | 270 – 290 | ℃ | |
| Temperature of the front section of the material pipe | 285 – 305 | ℃ | |
| Nozzle temperature | 270 – 305 | ℃ | |
| Mold temperature | 70 – 110 | ℃ | |
| Maintaining pressure (actual maximum injection pressure) | 50 – 75 | % | |
| Melt back pressure | 70 – 110 | bar | |
| Screw speed | 0.05 – 0.2 | m/s | |
| Injection volume | 30 – 70 | % | |
| Drying temperature under dry air | 120 | ℃ | |
| Drying time in dry air | 4 | h | |
| Maximum moisture content | ≤0. 02 | % | |
| Depth of exhaust groove | 0. 025 – 0. 075 | mm | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Pellets |
| 3. 60x60x2 mm, 500 bar |
| 4. 0.079 in/min |
| 5. 2 mm/min |
| 6. Based on ISO 179-1eA, 3 mm |
| 7. Based on ISO 180-A, 3 mm |
| 8. 10°C/min |
| 9. Cross-flow |
| 10. Procedure A |
| 11. Method A |
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