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PBT 4202 含15%玻纤增强,表面光洁度良好

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 4202
 
CELANEX® 4202 EC3939 GRAY
CELANEX® 4202 ED3002 BLACK
CELANEX® 4202 EF3001 NATURAL
CELANEX® 4202 ES3144 RED
 
CELANEX 4202 | PBT | Glass Reinforced
 
Description
Celanex 4202 is a 15% glass reinforced, impact modified polybutylene terephthalate with excellent surface appearance.
 
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   470-500(240-260) deg F (deg C)
Nozzle Temperature  480-500(250-260) deg F (deg C)
Melt Temperature    460-500(235-260) 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 25% clean and dry regrind may be used.
 
ISO Data Physical properties Value Unit Test Standard
Phys Density 1380 kg/m³ ISO 1183
Mold shrinkage - parallel 0.4 % ISO 294-4
Mold shrinkage - normal 0.9 % ISO 294-4
Humidity absorption (23℃/50%RH) 0.16 % ISO 62
Mech Mechanical properties Value Unit Test Standard
Tensile modulus (1mm/min) 5200 MPa ISO 527-2/1A
Tensile stress at break (5mm/min) 86 MPa ISO 527-2/1A
Tensile strain at break (5mm/min) 4.4 % ISO 527-2/1A
Flexural modulus (23℃) 5100 MPa ISO 178
Flexural strength (23℃) 141 MPa ISO 178
Charpy impact strength @ 23℃ 52 kJ/m² ISO 179/1eU
Charpy impact strength @ -30℃ 37 kJ/m² ISO 179/1eU
Charpy notched impact strength @ 23℃ 10.7 kJ/m² ISO 179/1eA
Charpy notched impact strength @ -30℃ 5.7 kJ/m² ISO 179/1eA
Notched impact strength (Izod) @ 23℃ 11.7 kJ/m² ISO 180/1A
Therm Thermal properties Value Unit Test Standard
Melting temperature (10℃/min) 225 ISO 11357-1,-2,-3
Glass transition temperature (10℃/min) 44 ISO 11357-1,-2,-3
DTUL @ 1.8 MPa 183 ISO 75-1/-2
DTUL @ 0.45 MPa 216 ISO 75-1/-2
Coeff.of linear therm. expansion (parallel) 0.36 E-4/℃ ISO 11359-2
Coeff.of linear therm. expansion (normal) 1 E-4/℃ ISO 11359-2
thickness tested (h) 0.79 mm UL94
Elec Electrical properties Value Unit Test Standard
Relative permittivity - 100 Hz 3.4 - IEC 60250
Relative permittivity - 1 MHz 3.2 - IEC 60250
Dissipation factor - 1 MHz 200 E-4 IEC 60250
Volume resistivity 2E14 Ohm*m IEC 60093
Surface resistivity 1E17 Ohm IEC 60093
Electric strength 22 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 260 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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