LEXAN™ 牌号 121M 种类 PC
产品说明 Non-halogenated. 17.5 MFR, for small, intricate parts. Improved internal mold release.

SABIC LEXAN™ PC 121M 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/min66MPaASTM D638
Tensile Strain, yld, Type I, 50 mm/min7%ASTM D638
Tensile Strain, brk, Type I, 50 mm/min120%ASTM D638
Flexural Stress, yld, 1.3 mm/min, 50 mm span100MPaASTM D790
Flexural Modulus, 1.3 mm/min, 50 mm span2350MPaASTM D790
IMPACT
Izod Impact, unnotched, 23°C2140J/mASTM D4812
Izod Impact, notched, 23°C820J/mASTM D256
Izod Impact, notched, -30°C200J/mASTM D256
Falling Dart Impact (D 3029), 23°C169JASTM D3029
Instrumented Dart Impact Total Energy, 23°C77JASTM D3763
THERMAL
Vicat Softening Temp, Rate B/50143°CASTM D1525
HDT, 0.45 MPa, 3.2 mm, unannealed137°CASTM D648
HDT, 1.82 MPa, 3.2mm, unannealed132°CASTM D648
CTE, -40°C to 40°C, flow6.36E-051/°CASTM E831
CTE, -40°C to 40°C, xflow6.5E-051/°CASTM E831
Specific Heat1.26J/g-°CASTM C351
Thermal Conductivity0.19W/m-°CASTM C177
PHYSICAL
Specific Gravity1.2-ASTM D792
Specific Volume0.83cm³/gASTM D792
Density1.19g/cm³ASTM D792
Water Absorption, (23°C/24hrs)0.15%ASTM D570
Water Absorption, (23°C/Saturated)0.35%ASTM D570
Water Absorption, equilibrium, 100°C0.58%ASTM D570
Mold Shrinkage, flow, 3.2 mm0.5-0.8%SABIC method
Melt Flow Rate, 300°C/1.2 kgf17.5g/10 minASTM D1238
OPTICAL
Light Transmission, 2.54 mm88%ASTM D1003
Haze, 2.54 mm1%ASTM D1003
Refractive Index1.586-ASTM D542
Injection Molding
Drying Temperature120°C
Drying Time3-4Hrs
Drying Time (Cumulative)48Hrs
Maximum Moisture Content0.02%
Melt Temperature280-305°C
Nozzle Temperature275-300°C
Front - Zone 3 Temperature280-305°C
Middle - Zone 2 Temperature270-295°C
Rear - Zone 1 Temperature260-280°C
Mold Temperature70-95°C
Back Pressure0.3-0.7MPa
Screw Speed40-70rpm
Shot to Cylinder Size40-60%
Vent Depth0.025-0.076mm
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