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PBT 1700FC 挤出级,食品级

添加时间:2013-05-23  信息来源:http://www.simibc.com/  作者:苏州希普能塑料
泰科纳PBT
 
CELANEX 1700FC | PBT | Unfilled
 
Description
Celanex 1700FC is a very high molecular weight extrusion grade of unreinforced polybutylene terephthalate for use in food contact applications.
 
ISO Data Physical properties Value Unit Test Standard
Phys Density 1310 kg/m³ ISO 1183
Mold shrinkage - parallel 1.8-2.0 % ISO 294-4
Mold shrinkage - normal 1.8-2.0 % ISO 294-4
Humidity absorption (23℃/50%RH) 0.2 % ISO 62
Mech Mechanical properties Value Unit Test Standard
Tensile modulus (1mm/min) 2500 MPa ISO 527-2/1A
Tensile stress at yield (50mm/min) 60 MPa ISO 527-2/1A
Tensile strain at yield (50mm/min) 6 % ISO 527-2/1A
Nominal strain at break (50mm/min) >50 % ISO 527-2/1A
Tensile stress at 50% strain (50mm/min) 28 MPa ISO 527-2/1A
Tensile stress at break (50mm/min) 35 MPa ISO 527-2/1A
Tensile strain at break (50mm/min) 120 % ISO 527-2/1A
Flexural modulus (23℃) 2200 MPa ISO 178
Flexural strength (23℃) 80 MPa ISO 178
Charpy impact strength @ 23℃ NB kJ/m² ISO 179/1eU
Charpy impact strength @ -30℃ 220 kJ/m² ISO 179/1eU
Charpy notched impact strength @ 23℃ 7.5 kJ/m² ISO 179/1eA
Charpy notched impact strength @ -30℃ 7 kJ/m² ISO 179/1eA
Notched impact strength (Izod) @ 23℃ 5.5 kJ/m² ISO 180/1A
Rockwell hardness 72 M-Scale ISO 2039-2
Therm Thermal properties Value Unit Test Standard
Melting temperature (10℃/min) 225 ISO 11357-1,-2,-3
Glass transition temperature (10℃/min) 60 ISO 11357-1,-2,-3
DTUL @ 1.8 MPa 50 ISO 75-1/-2
DTUL @ 0.45 MPa 150 ISO 75-1/-2
Vicat softening temperature B50 (50℃/h 50N) 182 ISO 306
Coeff.of linear therm. expansion (parallel) 1.1 E-4/℃ ISO 11359-2
Coeff.of linear therm. expansion (normal) 0.92 E-4/℃ ISO 11359-2
Limiting oxygen index (LOI) 22 % ISO 4589
Flammability at thickness h HB class UL94
thickness tested (h) 0.75 mm UL94
Eiec Electrical properties Value Unit Test Standard
Relative permittivity - 100 Hz 4 - IEC 60250
Relative permittivity - 1 MHz 3.6 - IEC 60250
Dissipation factor - 100 Hz 14 E-4 IEC 60250
Dissipation factor - 1 MHz 210 E-4 IEC 60250
Volume resistivity >1E13 Ohm*m IEC 60093
Surface resistivity >1E15 Ohm IEC 60093
Electric strength 23 kV/mm IEC 60243-1
Comparative tracking index CTI 600 - IEC 60112
SpecProd Test specimen production Value Unit Test Standard
Processing conditions acc. ISO 7792-2 - Internal
Injection molding melt temperature 243 ISO 294
Injection molding mold temperature 82 ISO 294
Injection molding flow front velocity 300 mm/s ISO 294
Injection molding hold pressure 48 MPa ISO 294
 
Processing
Pre Drying
Necessary low maximum residual moisture content: 0.02%
 
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℉ (-40℃) at 250℉ (121℃) for 4 hours.
 
For subsequent storage of the material in the dryer until processed (<= 60 h) it is necessary to lower the temperature to 100℃.
 
Drying time (h):4
Drying temperature (℃):120 - 130
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