Samyang(三养)TRIREX PC SM3-3018H是一种高冲击,高流动聚碳酸酯，比重是1.18g/cm³，熔流率（熔体流动速率）(300°C/1.2 kg)8g/17min，有着优异的机械特性，很好的尺寸稳定性及良好的电气特性，应用于移动通讯。
以下是PC(聚碳酸酯)SM3-3018H/Samyang(三养)物性表参数
| PROPERTY | UNIT | ASTM METHOD | TYPICAL DATA |
|---|---|---|---|
| Physical | |||
| Specific Gravity | - | D792 | 1.18 |
| Water Absorption (24 hours at 23℃) | % | D570 | 0.15 |
| Melt Flow Rate (300℃, 1.2kg) | g/10min | D1238 | 17 |
| MECHANICAL | |||
| Tensile Strength at yield | kgf/㎠ | D638 | 590 |
| Tensile Elongation at break | % | D638 | 120 |
| Flexural Strength at yield | kgf/㎠ | D790 | 750 |
| Flexural Modulus | kgf/㎠ | D790 | 20,000 |
| Izod Impact Strength, notched, 23℃ (1/8”) | kgf∙㎝/㎝ | D256 | 70 |
| THERMAL | |||
| HDT, 18.6 ㎏f/㎠ | ℃ | D648 | 130 |
| ELECTRICAL | |||
| OTHERS | |||
| UL-94 Flammability (1.5mm thickness) | - | (UL 94) | V-0 |
| UL-94 Flammability (2.5mm thickness WT, BK) | V-0, 5VB | ||
| UL-94 Flammability (3.0mm thickness) | V-0, 5VB | ||
| 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® SM3-3018H GRADE
General processing conditions for TRIREX® SM3-3018H 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 | ℃ | 280~310 |
| Nozzle Temperature | ℃ | 270~300 |
| Front Temperature | ℃ | 270~300 |
| Middle Temperature | ℃ | 270~300 |
| Rear Temperature | ℃ | 220~260 |
| Mold Temperature | ℃ | 60~90 |
| Back Pressure | MPa | 0.4~0.6 |
| Screw Speed | rpm | 50~70 |
| Vent Depth | mm | 0.02~0.08 |
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