东莞市腾烁化工有限公司
韩国SK化工SKYGREEN PETG S2008是高功能PETG树脂“SKYGREEN”是不含有Bisphenol A的环保型材料，透明性与耐化学性优异，快速替代PC、PMMA、PVC等原有材料，并且加工功能与成型功能卓越，从化妆品容器、电子零部件、建筑材料、光学薄膜等生活用品至产业材料领域里广泛地应用。
| Properties | Test | Method Unit | Values |
|---|---|---|---|
| Physical Properties | |||
| Specific | Gravity ASTM D792 | - | 1.27 |
| Mold shrinkage | ASTM D955 | % | 0.3 - 0.6 |
| Rockwell Hardness | ASTM D785 | R-Scale | 110 |
| Water Absorption | ASTM D570 | % | 0.2 |
| Mechanical Properties | |||
| Tensile Strength at Yield | ASTM D638 | MPa (kgf/cm2) | 50 (510) |
| Tensile Strength at Break | ASTM D638 | MPa (kgf/cm2) | 28 (286) |
| Elongation at Break | ASTM D638 | % | 140 |
| Flexural Strength at Yield | ASTM D790 | MPa (kgf/cm2) | 73 (745) |
| Flexural Modulus | ASTM D790 | MPa (kgf/cm2) | 2100 (21430) |
| Izod Impact Strength | ASTM D256 (Notched, @23℃) | J/m (kgf-cm/cm) | 100 (10.2) |
| Thermal Properties | |||
| Heat Distortion Temperature | ASTM D648 (@ 0.455 MPa) | ℃(℉) | 70 (158) |
| Vicat Softening Temperature | ASTM D1525 (@ 1 kg load) | ℃(℉) | 83 (181) |
| Glass Transition Temp.(Tg) | DSC method | ℃(℉) | 180 (176) |
| Optical Properties | |||
| Haze | ASTM D1003 | % | < 1 |
| Total Transmittance | ASTM D1003 | M% | 91 |
| Electrical Properties | |||
| Dielectric Strength | ASTM D149 (short-time, 500V/s) | kV/mm | 15 |
| Volume Resistivity | ASTM D257 | ?·cm | 10 |
| Dielectric Constant | ASTM D150 (@ 1MHz) | - | 2.5 |
| Dissipation Factor | ASTM D150 (@ 1MHz) | - | 0.023 |
以下是韩国SK化工SKYGREEN PETG S2008物性表参数
韩国SK化工SKYGREEN PETG S2008 Hydrolytic Degradation
| Drying Temperature | 65℃ (149℉) |
|---|---|
| Drying Time | Min.6 Hours / Max.12 Hours |
| Air Flow of Dry Air | > 0.065 m3/min per kg/hr (1cfm per lb/hr) |
| Dew Poing of Dry Air | > -30℃, -40℃ is better for good drying |
| Residual Moisture Contents | > 0.05% (500ppm) |
| Capacity of Hopper | 6-12 times extruder output |
| Height / Diameter Ratio | > 2:1, 3:1 is better for plug flow of materials |
| Insulation | Insulate well to improve the efficiency |
| Monitoring | Inlet Air Temperature & Drew Point |
韩国SK化工SKYGREEN PETG S2008注塑条件
| Setting Temp | 1st Pressure | 2nd Pressure (Holding Pressure) | Back Pressure |
|---|---|---|---|
| 55 bar | 40, 40, 35 bar | 5 bar | |
| Time | Injection Time | 2nd Pressure Time | Cooling Time |
| 2.0 sec. | 15 sec. | 15 sec. | |
| Speed | Speed V12 | Speed V21 | Cycle Time |
| 8 mm/sec | 8 mm/sec | 36 sec | |
| Screw | Refill Speed | rpm | Stroke |
| 50 % | 100 rpm | 62 mm |
