| About |
|---|
| Description General Purpose Application Automotive (Head Lamp Bezel)&& |
| Product Description | |
|---|---|
| Supplier | LG Chemical |
| Generic | polybutylene terephthalate |
| Material Status | Commercial: Active |
| Availabilitys | North America,Latin America,Asia Pacific,Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.31 | g/cm³ | ASTM D792 |
| Melt Flow Rate | |||
| 250℃，2.16kg | 33 | g/10min | ASTM D1238 |
| Shrinkage rate | |||
| MD：2.0 mm | 1.8 to 2.0 | % | |
| MD：3.0 mm | 1.9 to 2.1 | % | |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | |||
| Yield, 3.20 mm | 56.9 | MPa | ASTM D638 |
| Tensile strain | |||
| Fracture, 3.20 mm | > 100 | % | ASTM D638 |
| Bending modulus | |||
| 3.20 mm | 250 | MPa | ASTM D790 |
| bending strength | |||
| 3.20 mm | 84.3 | MPa | ASTM D790 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| 23℃，6.4mm | 33 | J/m | ASTM D256 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 0.45 MPa, unannealed, 6.4 mm | 170 | ℃ | |
| 1.8 MPa, unannealed, 6.4 mm | 60.0 | ℃ | |
| Melting peak temperature | 223 | ℃ | ASTM D3418 |
| Relative temperature index | 140 | ℃ | UL 746 |
| Electrical performance | 140 | ℃ | UL 746 |
| Impact mechanical performance | 130 | ℃ | UL 746 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Volume resistivity | |||
| 23℃ | 1.0E+17 | ohms·cm | ASTM D257 |
| Dielectric strength | |||
| 23 ℃，1 mm | 23 | kV/mm | ASTM D149 |
| Arc resistance | PLC 5 | ASTM D495 | |
| Compared to the leakage tracing index | PLC 0 | UL 746 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | |||
| 0.71 mm | HB | ||
| 1.50 mm | HB | ||
| 3.30 mm | HB |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature | 120 | °C | |
| Drying time | 5.0 | hr | |
| Recommended maximum moisture content | 0.020 | % | |
| Barrel rear temperature | 240 to 250 | °C | |
| Barrel middle temperature | 245 to 255 | °C | |
| Barrel front temperature | 245 to 255 | °C | |
| Nozzle temperature | 250 to 260 | °C | |
| Processing (melt) temperature | 245 to 260 | °C | |
| Mold temperature | 30 to 50 | °C | |
| Back pressure | 29.4 | MPa | |
| Screw speed | 60 | rpm | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 2.0 in/min |
| 3. 0.20 in/min |
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