VALOX™ 牌号 337 种类 PBT
产品说明 Low temperature impact PBT. Automotive applications: underhood power distribution boxes and covers.

SABIC VALOX™ PBT 337 物性表

属性典型值UNITS测试手段
MECHANICAL
Tensile Stress, yld, Type I, 50 mm/min39MPaASTM D638
Tensile Strain, yld, Type I, 50 mm/min3.9%ASTM D638
Flexural Stress, yld, 1.3 mm/min, 50 mm span56MPaASTM D790
Flexural Modulus, 1.3 mm/min, 50 mm span1790MPaASTM D790
IMPACT
Izod Impact, unnotched, 23°C3204J/mASTM D4812
Izod Impact, unnotched, -30°C3204J/mASTM D4812
Izod Impact, notched, 23°C870J/mASTM D256
Izod Impact, notched, -30°C801J/mASTM D256
THERMAL
HDT, 0.45 MPa, 6.4 mm, unannealed98°CASTM D648
HDT, 1.82 MPa, 6.4 mm, unannealed47°CASTM D648
PHYSICAL
Specific Gravity1.22-ASTM D792
Water Absorption, (23°C/24hrs)0.1%ASTM D570
Mold Shrinkage, flow, 3.2 mm2.4-2.7%SABIC method
Mold Shrinkage, xflow, 3.2 mm2.4-2.7%SABIC method
Melt Flow Rate, 250°C/5.0 kgf12.7g/10 minASTM D1238
Melt Viscosity1200Pa-sSABIC method
Injection Molding
Drying Temperature120°C
Drying Time3 - 4Hrs
Drying Time (Cumulative)12Hrs
Maximum Moisture Content0.02%
Melt Temperature245 - 260°C
Nozzle Temperature240 - 255°C
Front - Zone 3 Temperature245 - 260°C
Middle - Zone 2 Temperature240 - 255°C
Rear - Zone 1 Temperature230 - 250°C
Mold Temperature50 - 75°C
Back Pressure0.3 - 0.7MPa
Screw Speed50 - 100rpm
Shot to Cylinder Size40 - 80%
Vent Depth0.013 - 0.025mm
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