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PBT 4016 韧性良好,阻燃

添加时间:2013-05-27  信息来源:http://www.simibc.com/  作者:苏州希普能塑料
泰科纳PBT 4016
 
CELANEX® 4016 ED3002 BLACK
CELANEX® 4016 EF3001 NATURAL
 
CELANEX 4016 | PBT | Unfilled
 
Description
Non-exuding, unfilled, flame retardant polybutylene terephthalate which has an excellent balance of mechanical properties and processability. Celanex 4016 is well suited for applications requiring improved toughness.
 
Other Processing
Injection Molding
Rear Temperature    450-470(230-240) deg F (deg C)
Center Temperature  460-480(235-250) deg F (deg C)
Front Temperature   470-490(240-255) deg F (deg C)
Nozzle Temperature  480-490(250-255) deg F (deg C)
Melt Temperature    460-490(235-255) 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 50% clean and dry regrind may be used for the '16 series' flame retardant grades.
 
ISO Data Physical properties Value Unit Test Standard
Phys Density 1450 kg/m³ ISO 1183
Mold shrinkage - parallel 1.7-1.9 % ISO 294-4
Mold shrinkage - normal 1.7-1.9 % ISO 294-4
Humidity absorption (23℃/50%RH) 0.16 % ISO 62
Mech Mechanical properties Value Unit Test Standard
Tensile modulus (1mm/min) 2800 MPa ISO 527-2/1A
Tensile stress at yield (50mm/min) 55 MPa ISO 527-2/1A
Tensile strain at yield (50mm/min) 3.7 % ISO 527-2/1A
Nominal strain at break (50mm/min) 38 % ISO 527-2/1A
Tensile strain at break (50mm/min) 38 % ISO 527-2/1A
Flexural modulus (23℃) 2630 MPa ISO 178
Flexural strength (23℃) 76 MPa ISO 178
Charpy impact strength @ 23℃ 245 kJ/m² ISO 179/1eU
Charpy impact strength @ -30℃ 105 kJ/m² ISO 179/1eU
Charpy notched impact strength @ 23℃ 8.1 kJ/m² ISO 179/1eA
Charpy notched impact strength @ -30℃ 8.1 kJ/m² ISO 179/1eA
Unnotched impact str (Izod) @ 23℃ N kJ/m² ISO 180/1U
Notched impact strength (Izod) @ 23℃ 7.7 kJ/m² ISO 180/1A
Rockwell hardness 60 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) 48 ISO 11357-1,-2,-3
DTUL @ 1.8 MPa 62 ISO 75-1/-2
DTUL @ 0.45 MPa 159 ISO 75-1/-2
Coeff.of linear therm. expansion (parallel) 1 E-4/℃ ISO 11359-2
Coeff.of linear therm. expansion (normal) 1 E-4/℃ ISO 11359-2
Flammability at thickness h V-0 class UL94
thickness tested (h) 0.85 mm UL94
Elec Electrical properties Value Unit Test Standard
Relative permittivity - 100 Hz 3.1 - IEC 60250
Relative permittivity - 1 MHz 3.1 - 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 50 kV/mm IEC 60243-1
Comparative tracking index CTI 250 - 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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