| About |
|---|
| LEXAN OQ4820 is a high viscosity grade with a UV cut-off up to 400 nm and a greater optical purity than standard resins. Fields of application for this material are optical lenses, f.i. in sun glasses and sunvisors market.&& |
| Product Description | |
|---|---|
| Supplier | SABIC |
| Generic | Polycarbonate |
| Material Status | Commercial: Active |
| Availabilitys | Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.20 | g/cm³ | ISO 1183 |
| Melt Volume Rate | |||
| 300℃，1.2 kg | 6.00 | cm³/10min | ISO 1133 |
| Shrinkage rate | |||
| MD | 0.50 to 0.70 | % | Internal Method |
| Water absorption rate | ISO 62 | ||
| Saturation, 23 ℃ | 0.35 | % | |
| Equilibrium, 23 ℃, 50% RH | 0.15 | % | |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Charpy Notched Impact Strength | |||
| -30℃ | 15 | kJ/m² | ISO 179/1eA |
| 23℃ | 75 | kJ/m² | ISO 179/1eA |
| 23℃ | 35 | kJ/m² | ISO 179/2C |
| Charpy Unnotch Impact strength | ISO 179/1eU | ||
| -30℃ | 无断裂 | ||
| 23℃ | 无断裂 | ||
| Impact strength of cantilever beam notch | ISO 180/1A | ||
| -30℃ | 12 | kJ/m² | |
| 23℃ | 70 | kJ/m² | |
| Notched impact strength of cantilever beam | ISO 180/1U |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 0.45 MPa, unannealed, 100 mm span | 138 | ℃ | ISO 75-2/Be |
| 1.8 MPa, unannealed, 100 mm span | 127 | ℃ | ISO 75-2/Ae |
| Vicat Softening Temp | |||
| B50 | 144 | ℃ | ISO 306 |
| B120 | 145 | ℃ | ISO 306/B120 |
| Ball pressure test | |||
| 125℃ | Pass | IEC 60695-10-2 | |
| Linear coefficient of thermal expansion | |||
| MD：23~80℃ | 7.0E-5 | 1/℃ | ISO 11359-2 |
| Thermal conductivity coefficient | 0.20 | W/m/K | ISO 8302 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Glowing wire flammability index | |||
| 1.0 mm | 850 | ℃ | IEC 60695-2-12 |
| Extreme oxygen index | 25 | % | ISO 4589-2 |
| optical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Transmittance | |||
| 2540 µm | 88.0 to 89.0 | % | ASTM D1003 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Ball hardness | |||
| H358/30 | 95.0 | MPa | ISO 2039-1 |
| Tensile modulus | 2350 | MPa | ISO 527-1-2 |
| tensile strength | ISO 527-2/50 | ||
| yield | 63.0 | MPa | |
| fracture | 70.0 | MPa | |
| Tensile strain | ISO 527-2/50 | ||
| yield | 6.0 | % | |
| fracture | 120 | % | |
| Bending modulus | 2300 | MPa | ISO 178 |
| bending strength | 90.0 | MPa | ISO 178 |
| Taber abraser | |||
| 1000 cycles, 1000 g, CS-17 wheels | 10.0 | mg | Internal Method |
| Process Conditions | |||
|---|---|---|---|
| Injection | Nominal value | Unit | Test method |
| drying temperature | 120 | °C | |
| Drying time | 2.0 to 4.0 | hr | |
| Recommended maximum moisture content | 0.020 | % | |
| Hopper temperature | 60.0 to 80.0 | °C | |
| Temperature at the rear of the barrel | 270 to 300 | °C | |
| Temperature in the middle of the barrel | 280 to 310 | °C | |
| Front temperature of material barrel | 290 to 320 | °C | |
| Nozzle temperature | 280 to 310 | °C | |
| Processing (melt) temperature | 290 to 320 | °C | |
| Mold temperature | 80.0 to 120 | °C | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Tensile Bar |
| 3. 0.079 in/min |
| 4. Yield |
| 5. 80*10*3 sp=62mm |
| 6. 80*10*3 |
| 7. 120*10*4 mm |
| 【 Disclaimer 】 Guangzhou Soliao Information Technology Co., Ltd. reserves all rights. The information in this data table was obtained from the manufacturer of the material on soliao.com. Soliao.com makes every effort to ensure the accuracy of this data. However, the search company does not assume any responsibility for the uncertainty and consequences caused to users by these data values and suggestions, and strongly recommends verifying the data values with the material supplier before the final selection of materials. |