| About |
|---|
| LEXAN 945 Polycarbonate (PC) resin is a non-filled, injection moldable grade. This non-chlorinated, non-brominated flame retardant PC has an UL-94 V0 rating and is available in various opaque color options. LEXAN 945 is a general purpose resin designed to meet the needs of various applications.&& |
| Product Description | |
|---|---|
| Supplier | SABIC |
| Generic | Polycarbonate |
| Material Status | Commercial: Active |
| Features | Halogen free,Flame Characteristics,V-2,V-0,5VA |
| Availabilitys | North America,Asia Pacific,Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.19 | g/cm³ | ASTM D792 |
| Melt Flow Rate | |||
| 300℃，1.20kg | 10 | g/10min | ASTM D1238 |
| Shrinkage rate | |||
| MD：3.2 mm | 0.60 to 0.80 | % | Internal Method |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Tensile modulus | 2280 | MPa | ASTM D638 |
| tensile strength | |||
| fracture | 65.5 | MPa | ASTM D638 |
| yield | 62.1 | MPa | ASTM D638 |
| Tensile strain | |||
| fracture | 130 | % | ASTM D638 |
| yield | 6.0 | % | ASTM D638 |
| Bending modulus | |||
| 50 mm span | 2340 | MPa | ASTM D790 |
| bending strength | |||
| Yield, 50 mm span | 101 | MPa | ASTM D790 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| 23℃ | 800 | J/m | ASTM D256 |
| Dart impact equipped with measuring instruments | |||
| 23℃，Total Energy | 73.4 | J | ASTM D3763 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed, 3.2 mm | 127 | ℃ | ASTM D648 |
| 0.45 MPa, unannealed, 3.2 mm | 138 | ℃ | ASTM D648 |
| Vicat Softening Temp | 143 | ℃ | ASTM D1525 5 |
| Linear coefficient of thermal expansion | |||
| TD：-40~40℃ | 6.7E-5 | 1/℃ | ASTM E831 |
| MD：-40~40℃ | 6.7E-5 | 1/℃ | ASTM E831 |
| Relative temperature index | |||
| Electrical performance | 130 | ℃ | UL 746 |
| Strength mechanical performance | 130 | ℃ | UL 746 |
| Impact mechanical performance | 120 | ℃ | UL 746 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Arc resistance | PLC 7 | ASTM D495 | |
| Compared to the leakage tracing index | PLC 2 | UL 746 | |
| High Arc Burning Index (HAI) | PLC 3 | UL 746 | |
| High voltage arc marking rate | |||
| HVTR | PLC 4 | UL 746 | |
| Hot wire ignition | |||
| HWI | PLC 2 | UL 746 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | UL 94 | ||
| 0.80 mm | V-2 | UL 94 | |
| 1.10 mm | V-0 | UL 94 | |
| 3.00 mm | 5VA | UL 94 | |
| Glowing wire flammability index | |||
| 1.0 mm | 960 | ℃ | IEC 60695-2-12 |
| Igniting temperature of the hot wire | |||
| 1 mm | 875 | ℃ | IEC 60695-2-13 |
| Extreme oxygen index | 35 | % | ISO 4589-2 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature | 121 | °C | |
| Drying time | 3.0 to 4.0 | hr | |
| Drying time, maximum | 48 | hr | |
| Recommended maximum moisture content | 0.020 | % | |
| Recommended injection volume | 40 to 60 | % | |
| Barrel rear temperature | 271 to 293 | °C | |
| Barrel middle temperature | 282 to 304 | °C | |
| Barrel front temperature | 293 to 316 | °C | |
| Nozzle temperature | 288 to 310 | °C | |
| Processing (melt) temperature | 293 to 316 | °C | |
| Mold temperature | 71 to 93 | °C | |
| Back pressure | 0.345 to 0.689 | MPa | |
| Screw speed | 40 to 70 | rpm | |
| Vent depth | 0.025 to 0.076 | mm | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 2,0 in/min |
| 3. Type I, 2,0 in/min |
| 4. 0,051 in/min |
| 5. Rate A (50°C/h), Loading 2 (50 N) |
| 6. Tungsten Electrode |
| 7. Surface |
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