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This is the free Material Data Center Datasheet of CELANEX® PBT 357 FR - PBT - Celanese

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Caracteristicas de procesamiento y fisicas - Propiedades mecánicas - Propiedades térmicas - Otras propiedades
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Caracteristicas de procesamiento y fisicasValorUnidadesMétodo de ensayo
ISO Data
Indice de fluidez volumétrico, MVR 0.8 cm³/10min ISO 1133
Temperatura 250 °C -
Carga 2.16 kg -
Contracción posterior al moldeo, paralelo 0.7 % ISO 294-4, 2577
Contracción posterior al moldeo, normal 0.6 % ISO 294-4, 2577
Propiedades mecánicasValorUnidadesMétodo de ensayo
ISO Data
Módulo de tracción 1981 MPa ISO 527
Esfuerzo de fluencia 47 MPa ISO 527
Alarg. en límite elástico 4.9 % ISO 527
Resistencia al impacto Charpy, +23°C N kJ/m² ISO 179/1eU
Resistencia al impacto Charpy c/entalla, +23°C 17 kJ/m² ISO 179/1eA
Resistencia al impacto Charpy c/entalla, -30°C 9 kJ/m² ISO 179/1eA
Propiedades térmicasValorUnidadesMétodo de ensayo
ISO Data
Estabilidad al calor, 1.80 MPa 94 °C ISO 75-1/-2
Estabilidad al calor, 0.45 MPa 105 °C ISO 75-1/-2
Temp. reblandecimiento Vicat, B 113 °C ISO 306
Otras propiedadesValorUnidadesMétodo de ensayo
Densidad 1280 kg/m³ ISO 1183
Características
Procesamiento y forma de entrega
Moldeo por inyección
Forma de suministro
Sémola
Demás información
Moldeo por inyección
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 480-520(249-271) deg F (deg C)
Center Temperature 480-530(249-276) deg F (deg C)
Front Temperature 480-530(249-276) deg F (deg C)
Nozzle Temperature 480-530(249-276) deg F (deg C)
Melt Temperature 480-520(249-271) deg F (deg C)
Mold Temperature 80-180(27-82) deg F (deg C)
Back Pressure 50-100 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.
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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