LEXAN™ 牌号 OQ2720 种类 PC
产品说明 Ophthalmic/safety lens market. OQ2xxx series in all transparent tints. Dedicated equipment, stringent production control conditions.

SABIC LEXAN™ PC OQ2720 物性表

属性典型值UNITS测试手段
MECHANICAL
Tensile Stress, yld, Type I, 50 mm/min62MPaASTM D638
Tensile Stress, brk, Type I, 50 mm/min68MPaASTM D638
Tensile Strain, brk, Type I, 50 mm/min135%ASTM D638
Flexural Stress, yld, 1.3 mm/min, 50 mm span96MPaASTM D790
Flexural Modulus, 1.3 mm/min, 50 mm span2340MPaASTM D790
IMPACT
Izod Impact, notched, 23°C907J/mASTM D256
Tensile Impact Strength, Type S640kJ/m²ASTM D1822
Instrumented Dart Impact Energy @ peak, 23°C65JASTM D3763
THERMAL
HDT, 1.82 MPa, 6.4 mm, unannealed132°CASTM D648
PHYSICAL
Specific Gravity1.2-ASTM D792
Mold Shrinkage, flow, 3.2 mm0.5-0.7%SABIC method
Melt Flow Rate, 300°C/1.2 kgf7.5g/10 minASTM D1238
OPTICAL
Light Transmission, 2.54 mm89%ASTM D1003
Haze, 2.54 mm0.6%ASTM D1003
Refractive Index1.586-ASTM D542
Yellowness Index0-ASTM D1925
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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