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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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Caratteristiche Fisiche - Proprietà Meccaniche - Proprietà Termiche - Altre Proprietà
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Caratteristiche FisicheValoreUnitáNorma del test
ISO Data
Indice di fusione di volume, MVR 16 cm³/10min ISO 1133
Temperatura 265 °C -
Carico 2.16 kg -
Proprietà MeccanicheValoreUnitáNorma del test
ISO Data
Modulo a trazione 10200 MPa ISO 527
Carico unitario a rottura 150 MPa ISO 527
Deformazione a rottura 2.5 % ISO 527
Resistenza all'urto Charpy, +23°C 55 kJ/m² ISO 179/1eU
Resistenza all'urto Charpy, -30°C 51 kJ/m² ISO 179/1eU
Resistenzia all'urto Charpy con intaglio, +23°C 10 kJ/m² ISO 179/1eA
Resistenzia all'urto Charpy con intaglio, -30°C 10 kJ/m² ISO 179/1eA
Proprietà TermicheValoreUnitáNorma del test
ISO Data
Temp.di inflessione sotto carico, 1.80 MPa 204 °C ISO 75-1/-2
Temp.di inflessione sotto carico, 0.45 MPa 222 °C ISO 75-1/-2
Altre ProprietàValoreUnitáNorma del test
Massa volumica 1550 kg/m³ ISO 1183
Caratteristiche
Processabilità e Forma di Forni
Stampaggio ad Iniezione
Forma fisica disponibile
Pellet, Nero
Additivi
Agente di distacco
Disponibilità geografica
Asia Oceano Pacifico
Altre informazioni
Stampaggio ad Iniezione

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.
Disclaimer
Copyright Altair Engineering GmbH. Altair Engineering GmbH assumes no liability for the system to be free of errors. The user takes sole responsibility for the use of this data under the exclusion of every liability from Altair Engineering GmbH; this is especially valid for claims of compensation resulting from consequential damages. Altair explicitly points out that any decision about the application of materials must be double checked with the producer of this material. This includes all contents of this system. Copyright laws are applicable for the content of this system.
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