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This is the free Material Data Center Datasheet of CELANEX® 6035GB20 - PBT-GB20 - Celanese

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Características de processamento/físicasValorUnidadeMétodo de ensaio
ISO Dados
Contração após a moldagem, paralelo 1.5 % ISO 294-4, 2577
Contração após a moldagem, perpendicular 1.5 % ISO 294-4, 2577
Propriedades mecânicasValorUnidadeMétodo de ensaio
ISO Dados
Módulo de tração 3300 MPa ISO 527
Tensão na ruptura 46 MPa ISO 527
Deformação na ruptura 8.5 % ISO 527
Resistência ao impacto Charpy , +23°C 22 kJ/m² ISO 179/1eU
Resistência ao impacto Charpy, -30°C 19 kJ/m² ISO 179/1eU
Res. impacto Charpy c/entalhe, +23°C 1.7 kJ/m² ISO 179/1eA
Res. impacto Charpy c/entalhe, -30°C 2.8 kJ/m² ISO 179/1eA
Dureza Shore D 80 - ISO 7619-1
Propriedades térmicasValorUnidadeMétodo de ensaio
ISO Dados
Temperatura de fusão, 10°C/min 225 °C ISO 11357-1/-3
Temp. de transição vítrea, 10°C/min 50 °C ISO 11357-1/-2
Temperatura de deflexão térmica, 1.80 MPa 72 °C ISO 75-1/-2
Temperatura de deflexão térmica, 0.45 MPa 168 °C ISO 75-1/-2
Coef. de expansão térmica linear, paralelo 77 E-6/K ISO 11359-1/-2
Coef. de expansão térmica linear, perpend. 77 E-6/K ISO 11359-1/-2
Propriedades elétricasValorUnidadeMétodo de ensaio
ISO Dados
Constante dielétrica, 100Hz 3.7 - IEC 62631-2-1
Constante dielétrica, 1MHz 3.5 - IEC 62631-2-1
Fator de dissipação dielétrica, 1MHz 170 E-4 IEC 62631-2-1
Resistividade volumétrica específica >1E13 Ohm*m IEC 62631-3-1
Resistividade superficial específica >1E15 Ohm IEC 62631-3-2
Resistência elétrica 30 kV/mm IEC 60243-1
Outras propriedadesValorUnidadeMétodo de ensaio
Absorção de umidade 0.19 % Sim. to ISO 62
Densidade 1460 kg/m³ ISO 1183
Recomendação de processamento Moldagem por injeçãoValorUnidadeMétodo de ensaio
Pré-secagem - temperatura 121 °C -
Pré-secagem - tempo 4 h -
Umidade do processamento ≤0.02 % -
Temperatura da massa 235 - 260 °C -
Temperatura do molde 65 - 93 °C -
Características
Processamento
Moldagem por injeção
Forma de entrega
Granulos
Outras informações
Moldagem por injeção
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.
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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