TYPICAL DATA OF TRIREX® 3025U GRADE
| PROPERTY | UNIT | ASTM METHOD | TYPICAL DATA |
|---|---|---|---|
| Physical | |||
| Specific Gravity | - | D792 | 1.20 |
| Water Absorption (24 hours at 23℃) | % | D570 | 0.15 |
| Melt Flow Rate (300℃, 1.2kg) | g/10min | D1238 | 10 |
| MECHANICAL | |||
| Tensile Strength at yield | kgf/㎠ | D638 | 650 |
| Tensile Elongation at break | % | D638 | 160 |
| Flexural Strength at yield | kgf/㎠ | D790 | 900 |
| Flexural Modulus | kgf/㎠ | D790 | 21,000 |
| Izod Impact Strength, notched, 23℃ (1/8”) | kgf∙㎝/㎝ | D256 | 75 |
| Rockwell Hardness | R scale | D785 | 120 |
| THERMAL | |||
| HDT, 18.6 ㎏f/㎠ | ℃ | D648 | 132 |
| Coefficient of Linear Thermal Expansion | ㎜/㎜/℃ | D696 | 5~7 x 10-5 |
| ELECTRICAL | |||
| Volume Resistivity | Ω∙㎝ | D257 | 4E+16 |
| Dielectric Strength | kV/㎜ | D149 | 30 |
| Dielectric Constant | - | D150 | 2.85 |
| Dissipation Factor | - | D150 | 0.0092 |
| ARC Resistance | sec | D495 | 120 |
| OTHERS | |||
| UL-94 Flammability (0.5mm thickness) | - | (UL 94) | V-2 |
| Mold Shrinkage (3mm thickness) | % | D955 | 0.5~0.7 |
※The figures listed in this table are typical values obtained under the standard test methods and may not be applicable for products that are under different application condition.
PROCESSING GUIDE FOR TRIREX® 3025U GRADE
General processing conditions for TRIREX® 3025U are shown below.
Drying prior to processing is essential to ensure desired appearance and property performance.
| SPECIFICATION | UNIT | CONDITIONS |
|---|---|---|
| Drying Temperature | ℃ | 120 |
| Drying Time | hr | 3~4 |
| Moisture Content, Max | % | 0.02 |
| Melt Temperature | ℃ | 290~320 |
| Nozzle Temperature | ℃ | 290~310 |
| Front Temperature | ℃ | 290~310 |
| Middle Temperature | ℃ | 280~300 |
| Rear Temperature | ℃ | 270~290 |
| Mold Temperature | ℃ | 80~100 |
| Back Pressure | MPa | 0.4~0.6 |
| Screw Speed | rpm | 50~70 |
| Vent Depth | mm | 0.02~0.08 |
| Injection Pressure | MPa | 70~140 |
| Injection Speed | % | 50~80 |
| Hold Pressure | MPa | 35~60 |
| Injection Cushion | mm | 3~6 |