| About |
|---|
| Product Description | |
|---|---|
| Supplier | Chang Chun |
| Generic | PBT/PC |
| Material Status | Commercial: Active |
| Features | Low warping,Good Dimensional Stability |
| Technical Data | |||
|---|---|---|---|
| MECHANICAL | Nominal value | Unit | Test method |
| tensile strength | 88.3-127.5 | MPa | ASTM D638 |
| Tensile strain | 2.5-4.5 | % | ASTM D638 |
| bending strength | 127.5-176.5 | MPa | ASTM D790 |
| Bending modulus | ≥6864.7 | MPa | ASTM D790 |
| Rockwell hardness | |||
| M-level | 93 | ASTM D785 | |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | 58.8-98.1 | J/m | ASTM D256 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| melting point | 225 | ℃ | DSC |
| Hot deformation temperature | |||
| 1.8 MPa | 138 | ℃ | ASTM D648 |
| 0.45 MPa | 200 | ℃ | ASTM D648 |
| Linear coefficient of thermal expansion | 2.5E-5 | /℃ | ASTM D696 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Dielectric constant | |||
| 60 Hz | 3.5 | ASTM D150 | |
| Dissipation factor | |||
| 60 Hz | 0.001 | ASTM D150 | |
| Volume resistivity | 10^15 | ohms·cm | ASTM D257 |
| Surface resistivity | 10^13 | ohms/sq | ASTM D257 |
| Dielectric strength | ＞20 | kV/mm | ASTM D149 |
| Arc resistance | 80 | sec | ASTM D495 |
| PHYSICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Water absorption rate | |||
| 24hr | 0.03 | % | ASTM D570 |
| Shrinkage rate | |||
| TD | 0.1-0.3 | % | ASTM D955 |
| MD | 0.3-0.6 | % | ASTM D955 |
| proportion | 1.59 | ASTM D792 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | V-0 | class | UL 94 |
| Process Conditions | |||
|---|---|---|---|
| Processing speed | Nominal value | Unit | Test method |
| Processing temperature | Nominal value | Unit | Test method |
| Processing pressure | Nominal value | Unit | Test method |
| injection speed | 中-快 | ||
| Screw speed | 60-100 | rpm | |
| Temperature of the rear section of the barrel | 240-250 | ℃ | |
| Temperature in the middle section of the barrel | 245-265 | ℃ | |
| Temperature of the front section of the material barrel | 260-275 | ℃ | |
| Nozzle temperature | 260-275 | ℃ | |
| Mold temperature | 30-80 | ℃ | |
| Injection Pressure | 49-117.6 | Mpa | |
| Secondary pressure | 29.4-78.5 | Mpa | |
| Back pressure | 0-0.29 | Mpa | |
| Notes |
|---|
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