LEXAN™ 牌号 IR2840 种类 PC
产品说明 Low flow polycarbonate resin with mold release. FDA food contact compliant. Available in limited transparent tints, limited package types, and must meet minimum order quantity requirements.

SABIC LEXAN™ PC IR2840 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/min68MPaASTM D638
Tensile Strain, yld, Type I, 50 mm/min7%ASTM D638
Tensile Strain, brk, Type I, 50 mm/min135%ASTM D638
Tensile Modulus, 5 mm/min2310MPaASTM D638
Flexural Stress, yld, 1.3 mm/min, 50 mm span97MPaASTM D790
Flexural Modulus, 1.3 mm/min, 50 mm span2300MPaASTM D790
Tensile Stress, yield, 50 mm/min63MPaISO 527
Tensile Stress, break, 50 mm/min70MPaISO 527
Tensile Strain, yield, 50 mm/min6%ISO 527
Tensile Strain, break, 50 mm/min120%ISO 527
Tensile Modulus, 1 mm/min2350MPaISO 527
Flexural Stress, yield, 2 mm/min90MPaISO 178
Flexural Modulus, 2 mm/min2300MPaISO 178
IMPACT
Izod Impact, unnotched, 23°C3204J/mASTM D4812
Izod Impact, notched, 23°C850J/mASTM D256
Izod Impact, notched, -30°C139J/mASTM D256
Instrumented Dart Impact Total Energy, 23°C65JASTM D3763
Izod Impact, notched 80*10*4 +23°C65kJ/m²ISO 180/1A
Izod Impact, notched 80*10*4 -30°C10kJ/m²ISO 180/1A
Charpy 23°C, V-notch Edgew 80*10*4 sp=62mm95kJ/m²ISO 179/1eA
THERMAL
Vicat Softening Temp, Rate B/50154°CASTM D1525
HDT, 0.45 MPa, 6.4 mm, unannealed137°CASTM D648
HDT, 1.82 MPa, 6.4 mm, unannealed132°CASTM D648
CTE, -40°C to 40°C, flow6.E-051/°CISO 11359-2
CTE, -40°C to 40°C, xflow6.E-051/°CISO 11359-2
Ball Pressure Test, 125°C +/- 2°CPASSES-IEC 60695-10-2
Vicat Softening Temp, Rate B/50144°CISO 306
Vicat Softening Temp, Rate B/120145°CISO 306
HDT/Af, 1.8 MPa Flatw 80*10*4 sp=64mm127°CISO 75/Af
PHYSICAL
Specific Gravity1.2-ASTM D792
Density1.19g/cm³ASTM D792
Water Absorption, (23°C/24hrs)0.15%ASTM D570
Water Absorption, (23°C/Saturated)0.35%ASTM D570
Mold Shrinkage, flow, 3.2 mm0.5-0.7%SABIC method
Melt Flow Rate, 300°C/1.2 kgf7g/10 minASTM D1238
Density1.2g/cm³ISO 1183
Water Absorption, (23°C/saturated)0.35%ISO 62-1
Moisture Absorption (23°C / 50% RH)0.15%ISO 62
Melt Volume Rate, MVR at 300°C/1.2 kg6cm³/10 minISO 1133
OPTICAL
Light Transmission, 2.54 mm88%ASTM D1003
Haze, 2.54 mm1%ASTM D1003
Refractive Index1.586-ASTM D542
FLAME CHARACTERISTICS
UL Yellow Card LinkE121562-220863--
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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