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PBT 2008FC 低分子量,食品级

添加时间:2013-05-24  信息来源:http://www.simibc.com/  作者:苏州希普能塑料
泰科纳PBT 2008FC
 
CELANEX 2008FC | PBT | Unfilled
 
Description
Celanex 2008FC is a general purpose, unreinforced polybutylene terephthalate with a good balance of mechanical properties and processability for use in melt blown 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) 0.17 % ISO 62
Mech Mechanical properties Value Unit Test Standard
Tensile modulus (1mm/min) 2600 MPa ISO 527-2/1A
Tensile stress at break (5mm/min) 60 MPa ISO 527-2/1A
Tensile strain at break (5mm/min) 5 % ISO 527-2/1A
Tensile stress at break (50mm/min) 47 MPa ISO 527-2/1A
Tensile strain at break (50mm/min) 2 % ISO 527-2/1A
Flexural modulus (23℃) 2200 MPa ISO 178
Flexural strength (23℃) 80 MPa ISO 178
Charpy impact strength @ 23℃ 38 kJ/m² ISO 179/1eU
Charpy impact strength @ -30℃ 44 kJ/m² ISO 179/1eU
Charpy notched impact strength @ 23℃ 2.8 kJ/m² ISO 179/1eA
Charpy notched impact strength @ -30℃ 2.1 kJ/m² ISO 179/1eA
Notched impact strength (Izod) @ 23℃ 3.1 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 57 ISO 75-1/-2
DTUL @ 0.45 MPa 155 ISO 75-1/-2
Coeff.of linear therm. expansion (parallel) 1.1 E-4/℃ ISO 11359-2
Coeff.of linear therm. expansion (normal) 1 E-4/℃ ISO 11359-2
Elec Electrical properties Value Unit Test Standard
Relative permittivity - 100 Hz 3.3 - IEC 60250
Relative permittivity - 1 MHz 3.2 - IEC 60250
Dissipation factor - 1 MHz 200 E-4 IEC 60250
Volume resistivity >1E13 Ohm*m IEC 60093
Surface resistivity >1E15 Ohm IEC 60093
Electric strength 15 kV/mm IEC 60243-1
Comparative tracking index CTI 350 - 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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