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Makrolon® LED2247

MVR (300 °C/1.2 kg) 35 cm³/10 min; low viscosity; high optical transmittance; UV stabilized; easy release; LED Lighting, optics and lenses

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About

Product Types

  • Polycarbonate

Material

Plastics
Dimensionally stable, UV stable, Heat resistant, Optical quality

General Characterization

No data available

Storage Conditions

No data available

Sampling

No data available

Packaging Type

No data available

Technical Properties & Datasheets

Property Name Standard Test condition Unit Value
Barrel Temperatures - Front - °C 260 - 270
Barrel Temperatures - Middle - °C 250 - 260
Barrel Temperatures - Nozzle - °C 260 - 270
Barrel Temperatures - Rear - °C 230 - 240
Dry Air Drying Temperature - °C 120 - 120
Dry Air Drying Time - h 2 - 3
Hold Pressure (% of injection pressure) - % 50 - 75
Melt Temperatures - °C 250 - 300
Moisture Content max. (%) - % <= 0,02
Mold Temperatures - °C 80 - 120
Peripheral Screw Speed - m/s 0.05 - 0.2
Plastic Back Pressure (specific) - bar 50 - 150
Shot-to-Cylinder Size - % 30 - 70
Standard Melt Temperature - °C 270
Vent Depth - mm 0.025 - 0.075
Property Name Standard Test condition Unit Value
Coefficient of linear thermal expansion, parallel ISO 11359-1,-2 23 to 55 °C 10^-4^/K 0.65
Coefficient of linear thermal expansion, transverse ISO 11359-1,-2 23 to 55 °C 10^-4^/K 0.65
Glass transition temperature ISO 11357-1,-2 10 °C/min °C 144
Temperature of deflection under load ISO 75-1,-2 0.45 MPa °C 136
Temperature of deflection under load ISO 75-1,-2 1.80 MPa °C 123
Thermal conductivity, cross-flow ISO 8302 23 °C; 50 % r. h. W/(m*K) 0.2
Vicat softening temperature ISO 306 50 N; 120 °C/h °C 145
Vicat softening temperature ISO 306 50 N; 50 °C/h °C 143 - 143
Property Name Standard Test condition Unit Value
Ball indentation hardness ISO 2039-1 N/mm² 115
Charpy impact strength ISO 179-1eU -30 °C kJ/m² N
Charpy impact strength ISO 179-1eU -60 °C kJ/m² N
Charpy impact strength ISO 179-1eU 23 °C kJ/m² N
Flexural modulus ISO 178 2 mm/min MPa 2350 - 2350
Flexural strain at flexural strength ISO 178 2 mm/min % 7.1 - 7.1
Flexural strength ISO 178 2 mm/min MPa 97
Flexural stress at 3.5 % strain ISO 178 2 mm/min MPa 73 - 73
Nominal strain at break ISO 527-1,-2 50 mm/min % > 50
Puncture energy ISO 6603-2 -30 °C J 60
Puncture energy ISO 6603-2 23 °C J 55 - 55
Puncture maximum force ISO 6603-2 -30 °C N 5900
Puncture maximum force ISO 6603-2 23 °C N 4900 - 4900
Strain at break b.o. ISO 527-1,-2 50 mm/min % 120
Stress at break ISO 527-1,-2 50 mm/min MPa 60
Tensile modulus ISO 527-1,-2 1 mm/min MPa 2350 - 2350
Yield strain ISO 527-1,-2 50 mm/min % 6
Yield stress ISO 527-1,-2 50 mm/min MPa 63
Property Name Standard Test condition Unit Value
Haze for transparent materials ISO 14782 3 mm % < 0.5
Luminous transmittance (clear transparent materials) ISO 13468-2 1 mm % 90
Luminous transmittance (clear transparent materials) ISO 13468-2 2 mm % 90
Luminous transmittance (clear transparent materials) ISO 13468-2 4 mm % 89
Luminous transmittance (clear transparent materials) ISO 13468-2 3 mm % 89
Refractive index ISO 489 Procedure A 1.584
Property Name Standard Test condition Unit Value
Molding shrinkage, parallel/normal b.o. ISO 2577 Value range based on general practical experience % 0.5 - 0.7
Property Name Standard Test condition Unit Value
Comparative tracking index CTI IEC 60112 Solution A Rating 250
Comparative tracking index CTI M IEC 60112 Solution B Rating 125M
Dissipation factor IEC 60250 1 MHz 10^-4^ 90
Dissipation factor IEC 60250 100 Hz 10^-4^ 5
Electrical strength IEC 60243-1 1 mm kV/mm 34
Relative permittivity IEC 60250 1 MHz 3.0
Relative permittivity IEC 60250 100 Hz 3.1
Surface resistivity IEC 60093 Ohm 1E16
Volume resistivity IEC 60093 Ohm*m 1E14
Property Name Standard Test condition Unit Value
Injection molding-Injection velocity ISO 294 mm/s 200
Injection molding-Melt temperature ISO 294 °C 280 - 280
Injection molding-Mold temperature ISO 294 °C 80 - 80
Property Name Standard Test condition Unit Value
Bulk density ISO 60 kg/m³ 660
Density ISO 1183-1 kg/m³ 1190 - 1190
Water absorption (equilibrium value) ISO 62 23 °C; 50 % r. h. % 0.12
Water absorption (saturation value) ISO 62 Water at 23 °C % 0.3

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Technical Data Sheet
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Safety Data Sheet
No direct download available, please visit www.productsafetyfirst.covestro.com
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