| About |
|---|
| Description Light diffusion Application (LED) Lamp cover, Signboard Lighting decoration of electronic device&& |
| Product Description | |
|---|---|
| Supplier | LG Chemical |
| Generic | Polycarbonate |
| Material Status | Commercial: Active |
| Features | Low Light Diffusion |
| Availabilitys | North America,Latin America,Asia Pacific,Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.20 | g/cm³ | ASTM D792 |
| Melt Flow Rate | |||
| 300℃，1.20kg | 22 | g/10min | ASTM D1238 |
| Shrinkage rate | |||
| MD：3.2 mm | 0.50 to 0.80 | % | ASTM D955 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| 23℃，3.2mm | 69 | J/m | ASTM D256 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed, 6.4 mm | 128 | ℃ | ASTM D648 |
| Relative temperature index | 80.0 | ℃ | UL 746 |
| Electrical performance | 80.0 | ℃ | UL 746 |
| Impact mechanical performance | 80.0 | ℃ | UL 746 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | |||
| 0.80 mm | V-2 | ||
| 1.60 mm | V-2 |
| optical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Transmittance | |||
| 1000 µm | 89.0 | % | JIS K7361 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Rockwell hardness | |||
| R-level | 118 | ASTM D785 | |
| tensile strength | |||
| Yield, 3.20 mm | 61.8 | MPa | ASTM D638 |
| Tensile strain | |||
| Fracture, 3.20 mm | > 100 | % | ASTM D638 |
| Bending modulus | |||
| 6.40 mm | 2260 | MPa | ASTM D790 |
| bending strength | |||
| 6.40 mm | 93.2 | MPa | ASTM D790 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature | 100 to 120 | °C | |
| Drying time | 3.0 to 5.0 | hr | |
| Recommended maximum moisture content | 0.020 | % | |
| Barrel rear temperature | 250 to 270 | °C | |
| Barrel middle temperature | 270 to 290 | °C | |
| Barrel front temperature | 280 to 300 | °C | |
| Nozzle temperature | 280 to 300 | °C | |
| Processing (melt) temperature | 290 to 310 | °C | |
| Mold temperature | 60 to 100 | °C | |
| Back pressure | 0.981 to 3.92 | MPa | |
| Screw speed | 40 to 70 | rpm | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 2.0 in/min |
| 3. 0.59 in/min |
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