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Celanex PBT 1632Z

添加时间:2013-05-02  信息来源:http://www.simibc.com/  作者:苏州希普能塑料

CELANEX® 1632Z EC3932SP20 GRAY
CELANEX® 1632Z ED3002 BLACK
CELANEX® 1632Z EF3022 NATURAL
CELANEX® 1632Z ES3144 RED

 

CELANEX 1632Z | PBT | Glass Reinforced

 

Description
Celanex 1632Z is a general purpose, 15% fiberglass reinforced polybutylene terephthalate with a good balance of mechanical properties and processability.

 

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 1410 kg/m³ ISO 1183
Mold shrinkage - parallel 0.3-0.5 % ISO 294-4
Humidity absorption (23℃/50%RH) 0.1 % 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) 95 MPa ISO 527-2/1A
Tensile strain at break (5mm/min) 5.4 % ISO 527-2/1A
Flexural modulus (23℃) 5400 MPa ISO 178
Flexural strength (23℃) 155 MPa ISO 178
Charpy notched impact strength @ 23℃ 5.4 kJ/m² ISO 179/1eA
Notched impact strength (Izod) @ 23℃ 5.3 kJ/m² ISO 180/1A
Rockwell hardness 90 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 189 ISO 75-1/-2
DTUL @ 0.45 MPa 217 ISO 75-1/-2
Coeff.of linear therm. expansion (parallel) 0.4 E-4/℃ ISO 11359-2
Coeff.of linear therm. expansion (normal) 1.1 E-4/℃ ISO 11359-2
Flammability at thickness h HB class UL94
thickness tested (h) 0.8 mm UL94
SpecProd Test specimen production Value Unit Test Standard
Processing conditions acc. ISO Feb-92 - 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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