CELANEX庐 PBTPBTCharacteristicsProcessingInjection MouldingDelivery formPelletsAdditivesRelease agentProduct TextCelanex 2402MT is an unfilled and nucleated, easy flow PBT grade for injection molding processing.
Celanex 2402MT is a special grade developed for medical industry applications and complies with:
CFR 21 (177.1660) of the Food and Drug Administration (FDA) and is listed in the Drug Master File (DMF 10047 (US) / 10033 (EU)) and the Device Master File (MAF 443 (US) / 1078 (EU))
the corresponding EU and national registry regulatory requirements
biocompatibility in tests corresponding to USP 23 Class VI/*** 10993
ValueUnitTest NormMelting temperature, 10掳C/min225掳C*** 11357-1/-3Glass transition temperature, 10掳C/min60掳C*** 11357-1/-3Temperature of deflection under load, 1.8 MPa60掳C*** 75-1/-2Temperature of deflection under load, 0.45 MPa160掳C*** 75-1/-2Vicat softening temperature, 50掳C/h 50N190掳C*** 306Coefficient of linear thermal expansion (CLTE), parallel110E-6/K*** 11359-1/-2
Flammability
ValueUnitTest NormBurning Behav. at thickness hHBclassIEC 60695-11-10Thickness tested0.8mmIEC 60695-11-10
Physical/Other properties
ValueUnitTest NormHumidity absorption, 2mm0.2%Sim. to *** 62Water absorption, 2mm0.45%Sim. to *** 62Density1310kg/m鲁*** 1183
Injection
ValueUnitDrying RecommendedyesDrying Temperature140掳CDrying Time, Dehumidified Dryer4 - 6hProcessing Moisture Content鈮�0.01%Melt Temperature Optimum250掳CMin. melt temperature240掳CMax. melt temperature260掳CScrew tangential speed0.1 - 0.3m/sMold Temperature Optimum80掳CMin. mould temperature60掳CMax. mould temperature130掳CEjection temperature192掳CAdditional informationInjection molding
To minimize the volatile content in the final product, dry the resin to 鈮�0.01% water content. In injection molding, use the lowest possible melt temperature (recommended 240 掳C) and shortest feasible residence time (recommended 2-3 minutes). Store the parts in a ventilated, clean area before use. If assistance is needed please contact your Celanese account representative.
These recommendations are based on internal Celanese testing. For drying and injection molding conditions outside the above parameters, customer must test for and verify suitably low volatiles emissions on molded articles to confirm the final product is suitably pure for its intended use.
Processing Notes
Pre-Drying
To avoid hydrolytic degradation during processing, CELANEX resins have to be dried to a moisture level equal to or less than 0.01%. Drying should be done in a dehumidifying hopper dryer capable of dewpoints <-40掳C (-40掳F) at 140掳C (284掳F) for 4-6 hours.
Storage
For subsequent storage of the material in the dryer until processed (<= 60 h) it is necessary to lower the temperature to 100掳 C.
