CELANEX庐 PBTPBT-GF20CharacteristicsProcessingInjection MouldingDelivery formPelletsAdditivesRelease agentSpecial characteristicsHeat stabilised or stable to heatProduct TextCelanex 2300A GV1/20FC is a general purpose, 20% glass reinforced polybutylene terephthalate with a good balance of mechanical properties and processability for use in food contact applications in Europe. Celanex 2300A GV1/20FC contains an internal lubricant. Chemical abbreviation according to *** 1043-1: PBT GF20, Polybutylene terephthalate, 20 % glass fiber reinforced. Moulding compound *** 7792-1 PBT, MGMR, 08-070, GF20
ValueUnitTest NormMelting temperature, 10掳C/min225掳C*** 11357-1/-3Temperature of deflection under load, 1.8 MPa195掳C*** 75-1/-2Temperature of deflection under load, 0.45 MPa220掳C*** 75-1/-2Temperature of deflection under load, 8 MPa100掳C*** 75-1/-2Vicat softening temperature, 50掳C/h 50N215掳C*** 306Coefficient of linear thermal expansion (CLTE), parallel35E-6/K*** 11359-1/-2Thermal conductivity of melt0.156W/(m K)*** 22007-2Specific heat capacity of melt1840J/(kg K)*** 22007-4
ValueUnitTest NormHumidity absorption, 2mm0.15%Sim. to *** 62Water absorption, 2mm0.4%Sim. to *** 62Density1450kg/m鲁*** 1183Density of melt1230kg/m鲁
Injection
ValueUnitDrying RecommendedyesDrying Temperature140掳CDrying Time, Dehumidified Dryer4 - 6hProcessing Moisture Content鈮�0.01%Melt Temperature Optimum240掳CMin. melt temperature240掳CMax. melt temperature250掳CScrew tangential speed0.1 - 0.3m/sMold Temperature Optimum80掳CMin. mould temperature60掳CMax. mould temperature130掳CEjection temperature220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.
