Makrolon® LED2247

About
MVR (300°C/1.2 kg) 35 cm³/10 min; low viscosity; high optical transmittance; UV stabilized; easy release; LED Lighting, optics and lenses; injection molding – melt temperature 280 – 320°C&&

Product Description
SupplierCovestro
GenericPolycarbonate
Material StatusCommercial: Active
FeaturesWeather resistance is good,Good Clarity,Low Viscosity,Good stripping performance
AvailabilitysAfrica & Middle East ,North America,Latin America,Asia Pacific,Europe
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Density1.19g/cm³ISO 1183
Apparent density0.66g/cm³ISO 60
Melt Volume Rate
300℃,1.2 kg34.0cm³/10minISO 1133
Shrinkage rate
TD0.50 to 0.70%ISO 2577
MD0.50 to 0.70%ISO 2577
TD:280℃,2.0 mm0.70%ISO 294-4
MD:2.0 mm0.65%ISO 294-4
Water absorption rate
Saturation, 23 ℃0.30%
Equilibrium, 23 ℃, 50% RH0.12%

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength
23 ℃, localized fracture55kJ/m²
Charpy Unnotch Impact strength
-60℃无断裂 
-30℃无断裂 
23℃无断裂 
Impact strength of cantilever beam notch
-30 ℃, completely fractured12kJ/m²
23 ℃, localized fracture65kJ/m²
Multi axial instrumented impact energy
-30℃60.0J
23℃55.0J
Multi axial instrumented peak impact force
-30℃5900N
23℃4900N

THERMALNominal valueUnitTest method
Hot deformation temperature
0.45 MPa, unannealed136ISO 75-2/B
1.8 MPa, unannealed123ISO 75-2/A
Glass transition temperature144ISO 11357-2
Vicat Softening Temp
B50143ISO 306
B120145ISO 306/B120
Linear coefficient of thermal expansion
MD:23~55℃6.5E-51/℃
TD:23~55℃6.5E-51/℃
Thermal conductivity coefficient
23℃0.20W/m/KISO 8302

Electrical performanceNominal valueUnitTest method
Surface resistivity1.0E+16ohmsIEC 60093
Volume resistivity
23℃1.0E+16ohms·cmIEC 60093
Dielectric strength
23 ℃,1 mm34kV/mmIEC 60243-1
Relative permittivity
23℃,100 Hz3.10 
23℃,1 MHz3.00 
Dissipation factor
23℃,100 Hz5.0E-4 
23℃,1 MHz9.0E-3 
Compared to the leakage tracing index
Solution A250V
Solution B125V

optical performanceNominal valueUnitTest method
Refractive index1.584 ISO 489
Transmittance
1000 µm90.0%
2000 µm90.0%
3000 µm89.0%
4000 µm89.0%
Haze
3000 µm< 0.50%ISO 14782

Supplementary informationNominal valueUnitTest method
ISO ShortnamePC,MRT,(,,)-24-9 ISO 7391

MECHANICALNominal valueUnitTest method
Ball hardness115MPaISO 2039-1
Tensile modulus
23℃2350MPaISO 527-1-2
tensile strength
Yield, 23 ℃63.0MPa
Fracture, 23 ℃60.0MPa
Tensile strain
Yield, 23 ℃6.0%
Fracture, 23 ℃120%
Nominal tensile fracture strain
23℃> 50%ISO 527-2/50
Bending modulus
23℃2350MPaISO 178
bending strength
23℃97.0MPa
3.50% strain, 23 ℃73.0MPa
Bending strain7.1%ISO 178

Notes
1. Typical properties: these are not to be construed as specifications.
2. 60x60x2mm, 500 bar
3. 0.079 in/min
4. 2 mm/min
5. Type 1, Edgewise, Notch A
6. 3mm
7. 3.2mm
8. 10°C/min
9. Across Flow
10. Method A
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