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

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Processing/Physical Characteristics - Mechanical properties - Thermal properties - Other properties - Processing Recommendation Injection Molding
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Processing/Physical CharacteristicsValueUnitTest Standard
ISO Data
Melt volume-flow rate, MVR 21 cm³/10min ISO 1133
Temperature 250 °C -
Load 2.16 kg -
Molding shrinkage, parallel 1.9 % ISO 294-4, 2577
Molding shrinkage, normal 1.8 % ISO 294-4, 2577
Mechanical propertiesValueUnitTest Standard
ISO Data
Tensile Modulus 2600 MPa ISO 527
Yield stress 56 MPa ISO 527
Yield strain 7 % ISO 527
Nominal strain at break 19 % ISO 527
Charpy notched impact strength, +23°C 3.3 kJ/m² ISO 179/1eA
Thermal propertiesValueUnitTest Standard
ISO Data
Melting temperature, 10°C/min 225 °C ISO 11357-1/-3
Glass transition temperature, 10°C/min 60 °C ISO 11357-1/-2
Other propertiesValueUnitTest Standard
Humidity absorption 0.2 % Sim. to ISO 62
Processing Recommendation Injection MoldingValueUnitTest Standard
Pre-drying - Temperature 120 °C -
Pre-drying - Time 4 h -
Processing humidity ≤0.02 % -
Melt temperature 235 - 260 °C -
Mold temperature 65 - 93 °C -
Characteristics
Processing
Injection Molding
Regional Availability
North America, Europe, Asia Pacific
Other text information
Injection molding
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.
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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