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This is the free Material Data Center Datasheet of CELANEX® 2302 GV1/30LT ED4868 Black - (PBT+PET)-GF30 - Celanese

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加工/物理特性价值单位Test Standard
ISO数据
熔体体积流动速度, MVR 16 cm³/10min ISO 1133
温度 265 °C -
载荷 2.16 kg -
机械性能价值单位Test Standard
ISO数据
拉伸模量 10200 MPa ISO 527
断裂应力 150 MPa ISO 527
断裂伸长率 2.5 % ISO 527
无缺口简支梁冲击强度, +23°C 55 kJ/m² ISO 179/1eU
简支梁冲击强度, -30°C 51 kJ/m² ISO 179/1eU
简支梁缺口冲击强度, +23°C 10 kJ/m² ISO 179/1eA
简支梁缺口冲击强度, -30°C 10 kJ/m² ISO 179/1eA
热性能价值单位Test Standard
ISO数据
热变形温度, 1.80 MPa 204 °C ISO 75-1/-2
热变形温度, 0.45 MPa 222 °C ISO 75-1/-2
其它性能价值单位Test Standard
密度 1550 kg/m³ ISO 1183
典型数据
加工方法
注塑
供货形式
粒料, 黑色
添加剂
脱模助剂
地区供应
亚太
其他信息
注塑成型

To avoid hydrolytic degradation during processing, CELANEX resins have to be dried to a moisture level equal to or less than 0,02%. The drying should be done in a dry-air dryer (dew point < -30°C) with a temperature of 120 to 140 °C and a drying time of 2 to 4 hours. In case of longer residence times in the dry-air dryer, the temperature should be reduced to 100°C.

The time between drying and processing should be kept as short as possible. The processing machine feed hopper should be closed during the processing operation.


Melt Temperature 255-275 °C
Mold Temperature *) 80-100 °C
Maximum Barrel Residence Time **) 5-10 min
Injection Speed medium-fast
Holding Pressure  1000bar
Nozzle Design open design preferred

Injection speed, injection pressure and holding pressure have to be optimized to the individual article geometry. To avoid material degradation during processing low back pressure and minimum screw speed have to be used.

Fast fill rates are recommended to ensure uniform melt delivery to the cavity and prevent premature freezing. Surface appearance is directly affected by injection rate.

Celanese recommends only externally heated hot runner systems.

*) This product can be processed over mold temperatures of 60-100°C (140-212°F); however, for optimizing surface appearance, dimensional stability and part performance, mold surface temperatures of at least 80°C (176°F) are preferred. For moulded parts with especially high requirements to the surface quality or dimensional stability, a mold temperature of up to 100 °C can be advantageous.
**) If the cylinder temperatures are higher than the recommended maximum temperatures, the max. residence time in the barrel has to be reduced.
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