LEXAN™ 牌号 VR2820 种类 PC
产品说明 Low flow, UV stabilized polycarbonate resin with mold release. Available in limited transparent tints, limited package types, and must meet minimum order quantity requirements.

SABIC LEXAN™ PC VR2820 物性表

属性典型值UNITS测试手段
MECHANICAL
Tensile Stress, yld, Type I, 50 mm/min63MPaASTM D638
Tensile Stress, brk, Type I, 50 mm/min65MPaASTM D638
Tensile Strain, yld, Type I, 50 mm/min7%ASTM D638
Tensile Strain, brk, Type I, 50 mm/min110%ASTM D638
Tensile Modulus, 50 mm/min2350MPaASTM D638
Flexural Stress, yld, 1.3 mm/min, 50 mm span93MPaASTM D790
Flexural Modulus, 1.3 mm/min, 50 mm span2300MPaASTM D790
IMPACT
Izod Impact, notched, 23°C900J/mASTM D256
THERMAL
HDT, 1.82 MPa, 3.2mm, unannealed124°CASTM D648
CTE, -40°C to 95°C, flow6.84E-051/°CASTM E831
PHYSICAL
Specific Gravity1.2-ASTM D792
Mold Shrinkage, flow, 3.2 mm0.5-0.7%SABIC method
Melt Flow Rate, 300°C/1.2 kgf7g/10 minASTM D1238
FLAME CHARACTERISTICS
UL Yellow Card LinkE121562-548558--
Injection Molding
Drying Temperature120°C
Drying Time3-4Hrs
Drying Time (Cumulative)48Hrs
Maximum Moisture Content0.02%
Melt Temperature310-330°C
Nozzle Temperature305-325°C
Front - Zone 3 Temperature310-330°C
Middle - Zone 2 Temperature300-320°C
Rear - Zone 1 Temperature290-310°C
Mold Temperature80-115°C
Back Pressure0.3-0.7MPa
Screw Speed40-70rpm
Shot to Cylinder Size40-60%
Vent Depth0.025-0.076mm
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