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This is the free Material Data Center Datasheet of CELANEX® 2002SW1 - PBT - Celanese

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Caractéristiques des transformations/physiques - Propriétés mécaniques - Propriétés thermiques - Propriétés diverses - Recommandations pour la transformation Moulage par injection
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Caractéristiques des transformations/physiquesValeurUnitéNorme du test
ISO Data
Indice de fluidité à chaud en volume, MVR 21 cm³/10min ISO 1133
Température 250 °C -
Charge 2.16 kg -
Retrait au moulage, parallèle 1.9 % ISO 294-4, 2577
Retrait au moulage, perpendiculaire 1.8 % ISO 294-4, 2577
Propriétés mécaniquesValeurUnitéNorme du test
ISO Data
Module en traction 2600 MPa ISO 527
Contrainte d'écoulement 56 MPa ISO 527
Déformation au seuil d'écoulement 7 % ISO 527
Déformation nominale à la rupture 19 % ISO 527
Résistance au choc Charpy (entaillé), +23°C 3.3 kJ/m² ISO 179/1eA
Propriétés thermiquesValeurUnitéNorme du test
ISO Data
Température de fusion, 10°C/min 225 °C ISO 11357-1/-3
Température de transition vitreuse, 10°C/min 60 °C ISO 11357-1/-2
Propriétés diversesValeurUnitéNorme du test
Absorption d'humidité 0.2 % Sim. to ISO 62
Recommandations pour la transformation Moulage par injectionValeurUnitéNorme du test
Pré-séchage - température 120 °C -
Pré-séchage - temps 4 h -
L'humidité de traitement ≤0.02 % -
Température de la matière fondue 235 - 260 °C -
Température du moule 65 - 93 °C -
Caractéristiques
Transformation
Moulage par injection
Disponibilité régionale
Amérique du nord, Europe, Asia Pacific
Autres informations
Moulages par injection
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 <-40°F (-40°C) at 250°F (120°C) for minimum 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.
Conditions générales
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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