VALOX™ 牌号 420 种类 PBT
产品说明 30% GR, excellent strength, stiffness and dimensional stability. High heat resistance. Appliance handles, spotlights, electric motors, connectors.

SABIC VALOX™ PBT 420 物性表

属性典型值UNITS测试手段
MECHANICAL
Tensile Stress, brk, Type I, 5 mm/min119MPaASTM D638
Tensile Strain, brk, Type I, 5 mm/min3%ASTM D638
Flexural Stress, brk, 1.3 mm/min, 50 mm span190MPaASTM D790
Flexural Modulus, 1.3 mm/min, 50 mm span7580MPaASTM D790
Hardness, Rockwell R118-ASTM D785
IMPACT
Izod Impact, unnotched, 23°C801J/mASTM D4812
Izod Impact, notched, 23°C85J/mASTM D256
THERMAL
HDT, 0.45 MPa, 6.4 mm, unannealed215°CASTM D648
HDT, 1.82 MPa, 6.4 mm, unannealed207°CASTM D648
CTE, -40°C to 40°C, flow2.52E-051/°CASTM E831
CTE, 60°C to 138°C, flow2.52E-051/°CASTM E831
Relative Temp Index, Elec140°CUL 746B
Relative Temp Index, Mech w/impact140°CUL 746B
Relative Temp Index, Mech w/o impact140°CUL 746B
PHYSICAL
Specific Gravity1.53-ASTM D792
Specific Volume0.66cm³/gASTM D792
Water Absorption, (23°C/24hrs)0.06%ASTM D570
Mold Shrinkage, flow, 1.5-3.2 mm0.3-0.5%SABIC method
Mold Shrinkage, flow, 3.2-4.6 mm0.5-0.8%SABIC method
Mold Shrinkage, xflow, 1.5-3.2 mm0.4-0.6%SABIC method
Mold Shrinkage, xflow, 3.2-4.6 mm0.6-0.9%SABIC method
ELECTRICAL
Volume Resistivity>3.2E+16Ω.cmASTM D257
Dielectric Strength, in air, 3.2 mm18.7kV/mmASTM D149
Dielectric Strength, in oil, 1.6 mm24kV/mmASTM D149
Relative Permittivity, 100 Hz3.8-ASTM D150
Relative Permittivity, 1 MHz3.7-ASTM D150
Dissipation Factor, 100 Hz0.002-ASTM D150
Dissipation Factor, 1 MHz0.02-ASTM D150
Arc Resistance, Tungsten {PLC}5PLC CodeASTM D495
High Voltage Arc Track Rate {PLC}1PLC CodeUL 746A
Comparative Tracking Index (UL) {PLC}0PLC CodeUL 746A
FLAME CHARACTERISTICS
UL Yellow Card LinkE207780-100173314--
UL Yellow Card Link 2E45587-236813--
UL Recognized, 94HB Flame Class Rating0.83mmUL 94
Oxygen Index (LOI)19%ASTM D2863
Injection Molding
Drying Temperature120°C
Drying Time3-4Hrs
Drying Time (Cumulative)12Hrs
Maximum Moisture Content0.02%
Melt Temperature250-265°C
Nozzle Temperature245-260°C
Front - Zone 3 Temperature250-265°C
Middle - Zone 2 Temperature245-260°C
Rear - Zone 1 Temperature240-255°C
Mold Temperature65-90°C
Back Pressure0.3-0.7MPa
Screw Speed50-80rpm
Shot to Cylinder Size40-80%
Vent Depth0.025-0.038mm
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