| About |
|---|
| Product Description | |
|---|---|
| Supplier | SUQING |
| Generic | polybutylene terephthalate |
| Material Status | Commercial: Negative |
| Features | Low contractility,HB |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.62 | g/cm³ | ASTM D792 |
| Specific volume | 0.621 | cm³/g | ASTM D792 |
| Shrinkage rate | Internal Method | ||
| TD | 0.40 to 0.60 | % | Internal Method |
| TD | 0.60 to 0.80 | % | Internal Method |
| Water absorption rate | |||
| 24hr | 0.070 | % | ASTM D570 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| 23℃ | 75 | J/m | ASTM D256 |
| 23℃ | 430 | J/m | ASTM D4812 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed, 6.4 mm | 199 | ℃ | ASTM D648 |
| 0.45 MPa, unannealed, 6.4 mm | 216 | ℃ | ASTM D648 |
| Linear coefficient of thermal expansion | |||
| MD | ASTM E831 | ||
| -40 to 40 ℃ | 2.5E-5 | cm/cm/℃ | ASTM E831 |
| 60 to 138 ℃ | 2.5E-5 | cm/cm/℃ | ASTM E831 |
| Relative temperature index | |||
| Electrical performance | 140 | ℃ | UL 746 |
| Strength mechanical performance | 140 | ℃ | UL 746 |
| Impact mechanical performance | 140 | ℃ | UL 746 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Volume resistivity | 1.3E+15 | ohms·cm | ASTM D257 |
| Dielectric strength | ASTM D149 | ||
| 1.6 mm in oil | 30 | kV/mm | ASTM D149 |
| 3.2 mm in air | 24 | kV/mm | ASTM D149 |
| Dielectric constant | ASTM D150 | ||
| 100 Hz | 4.30 | ASTM D150 | |
| 1 MHz | 4.00 | ASTM D150 | |
| Dissipation factor | ASTM D150 | ||
| 100 Hz | 1.0E-3 | ASTM D150 | |
| 1 MHz | 0.020 | ASTM D150 | |
| Arc resistance | PLC 6 | 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 1 | UL 746 | |
| Hot wire ignition | |||
| HWI | PLC 0 | UL 746 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| 0.80 mm | HB | UL 94 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | |||
| fracture | 75.8 | MPa | ASTM D638 |
| Bending modulus | |||
| 50 mm span | 8270 | MPa | ASTM D790 |
| bending strength | |||
| Fracture, 50 mm span | 124 | MPa | ASTM D790 |
| Rockwell hardness | |||
| R-level | 109 | ASTM D785 |
| Special value | Nominal value | Unit | Test method |
|---|---|---|---|
| MD | 0.30 to 0.40 | % | Internal Method |
| MD | 0.40 to 0.60 | % | Internal Method |
| Process Conditions | |||
|---|---|---|---|
| Injection | Nominal value | Unit | Test method |
| drying temperature | 121 | °C | null |
| Drying time | 3.0 to 4.0 | hr | null |
| Drying time, maximum | 12 | hr | null |
| Recommended maximum moisture content | 0.020 | % | null |
| Suggested injection volume | 40 to 80 | % | null |
| Temperature at the rear of the barrel | 243 to 254 | °C | null |
| Temperature in the middle of the barrel | 249 to 260 | °C | null |
| Front temperature of material barrel | 254 to 266 | °C | null |
| Nozzle temperature | 254 to 271 | °C | null |
| Processing (melt) temperature | 254 to 277 | °C | null |
| Mold temperature | 66 to 93 | °C | null |
| Back pressure | 0.345 to 0.689 | MPa | null |
| Screw speed | 50 to 80 | rpm | null |
| Exhaust hole depth | 0.025 to 0.038 | mm | null |
| Notes |
|---|
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