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This is the free Material Data Center Datasheet of CELANEX® XFR 6842 GF30 - PBT-GF30 - Celanese

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Texto del producto
Celanex XFR 6842 GF30 is a halogen and antimony free flame retardant (V-0 @ 0.4 mm) 30% glass reinforced PBT grade with good processability and no corrosive emissions during processing. It is suitable for parts requiring enhanced tracking resistance, toughness, and flame retardancy at < 0.75 mm wall thickness and It is well suited for electrical connector applications where its UL approved 50% regrind use capability allows maximum use of purchased product.. The product is WEEE and RoHS compliant.

Flammability @1.6mm nom. thickn.V-0-
Flammability @0.8mm nom. thickn.V-0UL recognition (0.8)
Flammability @0.4mm nom. thickn.V-0UL recognition (0.4)
Flammability at thickness h (0.4 mm)V-0UL recognition (h)
Caracteristicas de procesamiento y fisicasValorUnidadesMétodo de ensayo
ISO Data
Indice de fluidez volumétrico, MVR 18 cm³/10min ISO 1133
Temperatura 250 °C -
Carga 5 kg -
Contracción posterior al moldeo, paralelo 0.4 % ISO 294-4, 2577
Contracción posterior al moldeo, normal 0.9 % ISO 294-4, 2577
Propiedades mecánicasValorUnidadesMétodo de ensayo
ISO Data
Módulo de tracción 10000 MPa ISO 527
Resistencia a la tracción 102 MPa ISO 527
Alargamiento a rotura 2 % ISO 527
Resistencia al impacto Charpy, +23°C 35 kJ/m² ISO 179/1eU
Resistencia al impacto Charpy c/entalla, +23°C 6.9 kJ/m² ISO 179/1eA
Propiedades térmicasValorUnidadesMétodo de ensayo
ISO Data
Temperatura de fusión, 10°C/min 225 °C ISO 11357-1/-3
Estabilidad al calor, 1.80 MPa 203 °C ISO 75-1/-2
Temp. reblandecimiento Vicat, B 207 °C ISO 306
Combustibilidad a 1.5mm esp. nom. V-0 class IEC 60695-11-10
Combustibilidad a espesor h V-0 class IEC 60695-11-10
Espesores de probeta 0.4 mm -
Yellow Card disponible - -
Combustibilidad 5V a espesor h 5VA class IEC 60695-11-20
Espesores de probeta 1.5 mm -
Yellow Card disponible - -
Propiedades eléctricasValorUnidadesMétodo de ensayo
ISO Data
Constante dieléctrica, 1MHz 3.6 - IEC 62631-2-1
Factor de pérdidas dieléctricas, 1MHz 140 E-4 IEC 62631-2-1
Resistividad volumétrica específica >1E13 Ohm*m IEC 62631-3-1
Resistividad superficial específica >1E15 Ohm IEC 62631-3-2
Otras propiedadesValorUnidadesMétodo de ensayo
Absorción de humedad 0.2 % Sim. to ISO 62
Densidad 1530 kg/m³ ISO 1183
Características
Procesamiento y forma de entrega
Moldeo por inyección
Forma de suministro
Sémola
Características especiales
Resistencia mejorada al fuego, Sin halógeno
Características
Low Emission
Certifications
RoHS
Disponibilidad regional
Norteamérica, Europa
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 <-40°F (-40°C) at 250-285°F (120-140°C) for 4-6 hours.
Melt Temperature. 250-265 °C
Mold Temperature *): 75-90 °C
Maximum Barrel Residence Time **): 5-10 min
Injection Speed: high
Peripheral screw speed: max.0,25 m/sec
Back Pressure: 10-30 bar
Injection Pressure: 600-1000 bar
Holding Pressure: 400-800 bar

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. For grades containing flame retardants, a maximum temperature of 265 °C should not be exceeded.

Ticona recommends only externally heated hot runner systems.

*) 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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