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This is the free Material Data Center Datasheet of CELANEX® 2000-3 - PBT - Celanese

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Propriedades mecânicas - Propriedades térmicas - Propriedades elétricas - Outras propriedades - Recomendação de processamento Moldagem por injeção
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Propriedades mecânicasValorUnidadeMétodo de ensaio
ISO Dados
Módulo de tração 2700 MPa ISO 527
Tensão no escoamento 60 MPa ISO 527
Deformação no escoamento 4 % ISO 527
Resistência ao impacto Charpy , +23°C 100 kJ/m² ISO 179/1eU
Res. impacto Charpy c/entalhe, +23°C 4 kJ/m² ISO 179/1eA
Propriedades térmicasValorUnidadeMétodo de ensaio
ISO Dados
Temperatura de deflexão térmica, 1.80 MPa 55 °C ISO 75-1/-2
Temperatura de deflexão térmica, 0.45 MPa 155 °C ISO 75-1/-2
Propriedades elétricasValorUnidadeMétodo de ensaio
ISO Dados
Constante dielétrica, 1MHz 3.2 - IEC 62631-2-1
Resistividade volumétrica específica >1E13 Ohm*m IEC 62631-3-1
Resistência elétrica 15 kV/mm IEC 60243-1
Outras propriedadesValorUnidadeMétodo de ensaio
Absorção de água 0.45 % Sim. to ISO 62
Absorção de umidade 0.2 % Sim. to ISO 62
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
Aditivos
Lubrificantes, Desmoldante
Disponibilidade regional
América do Norte, Europa, Ásia Pacífico
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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