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This is the free Material Data Center Datasheet of CELANEX® 3202-2 - PBT - Celanese

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加工/物理特性 - 机械性能 - 热性能 - 其它性能 - 加工推荐（注塑）
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加工/物理特性价值单位Test Standard
ISO数据
模塑收缩率, 平行 0.6 % ISO 294-4, 2577
机械性能价值单位Test Standard
ISO数据
断裂应力 115 MPa ISO 527
断裂伸长率 3.2 % ISO 527
热性能价值单位Test Standard
ISO数据
熔融温度, 10°C/min 225 °C ISO 11357-1/-3
其它性能价值单位Test Standard
吸湿性 0.1 % 类似ISO 62
密度 1450 kg/m³ ISO 1183
加工推荐（注塑）价值单位Test Standard
预干燥-温度 121 °C -
预干燥-时间 4 h -
加工湿度 ≤0.02 % -
注塑熔体温度 235 - 260 °C -
模具温度 65 - 93 °C -
典型数据
加工方法
注塑
添加剂
脱模助剂
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%. Drying should be done in a dehumidifying hopper dryer capable of dewpoints <-30°F (-34°C) at 250°F (121°C) for 4 hours.
Rear Temperature 450-470(230-240) deg F (deg C)
Center Temperature 460-480(235-250) deg F (deg C)
Front Temperature 470-500(240-260) deg F (deg C)
Nozzle Temperature 480-500(250-260) deg F (deg C)
Melt Temperature 460-500(235-260) deg F (deg C)
Mold Temperature 150-200(65-93) deg F (deg C)
Back Pressure 0-50 psi
Screw Speed Medium
Injection Speed Fast

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. Overheating of the material has to be avoided, in particular for flame retardant grades. Up to 25% clean and dry regrind may be used.
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