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PBT 2404 MT 含PTFE润滑,耐磨损

添加时间:2013-05-25  信息来源:http://www.simibc.com/  作者:苏州希普能塑料
泰科纳PBT
 
CELANEX® 2404 MT® 20/9107
CELANEX® 2404 MT® 80/4073
CELANEX® 2404 MT® 80/4074
CELANEX® 2404 MT® 80/4125
CELANEX® 2404 MT® NATURAL
 
CELANEX 2404 MT | PBT | Medical Technology
 
Description
Celanex 2404 MT Natural is an unreinforced PTFE filled PBT with improved friction, sliding, and wear properties that complies with the requirements of CFR 21 177.1660 of the Food and Drug Administration (FDA) and is listed in the Drug Master File (DMF) 10047 (US) / 10033 (EU) and the Device Master File (MAF) 443 (US) / 1078 (EU).. 2404 MT also complies with the corresponding EU and national registry regulatory requirements. 2404 MT has displayed excellent biocompatibility in tests corresponding to USP 23 class VI. Celanex 2404 MT contains no animal derived materials.
 
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 1340 kg/m³ ISO 1183
Melt volume rate (MVR) 21 cm³/10min ISO 1133
MVR test temperature 250 ISO 1133
MVR test load 2.16 kg ISO 1133
Mold shrinkage - parallel 1.8-2.0 % ISO 294-4
Mech Mechanical properties Value Unit Test Standard
Tensile modulus (1mm/min) 2600 MPa ISO 527-2/1A
Tensile stress at yield (50mm/min) 56 MPa ISO 527-2/1A
Tensile strain at yield (50mm/min) 7 % ISO 527-2/1A
Nominal strain at break (50mm/min) 19 % ISO 527-2/1A
Charpy notched impact strength @ 23℃ 3.3 kJ/m² ISO 179/1eA
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 55 ISO 75-1/-2
Vicat softening temperature B50 (50℃/h 50N) 190 ISO 306
Elec Electrical properties Value Unit Test Standard
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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