CALIBRE™ MEGARAD™ 2081-12

About
CALIBRE™ MEGARAD 2081-12 Polycarbonate resin provides end-users of radiation sterilized medical devices a color closer to the water-clear look of the natural resin. When exposed to high energy radiation (gamma or electron beam), CALIBRE MEGARAD 2081-12 resin can reduce the color shift by 50% compared to general purpose polycarbonate resins. CALIBRE 2081-12 resin has undergone biocompatibility testing based on ISO 10993 (Biological Evaluation of Medical Devices) and is suitable for use in approved medical applications. Main Characteristics: Stabilized for high energy radiation Tested under ISO 10993 and USP Transparent Contains mold release Applications: Medical applications&&

Product Description
SupplierTrinseo
GenericPolycarbonate
Material StatusCommercial: Active
FeaturesGood Clarity,E-beam disinfection,Biocompatible,Radiation disinfection
AvailabilitysEurope
Process MethodsInjection Molding

Technical Data
PHYSICALNominal valueUnitTest method
Density1.20g/cm³ASTM D792 , ISO 1183/A
Melt Flow Rate
300℃,1.20kg12g/10minASTM D1238,ISO 1133
Shrinkage rate 
MD0.50 to 0.70%ASTM D955
MD0.50 to 0.70%ISO 294-4
Water absorption rate ASTM D570 , ISO 62
23℃,24hr0.15%ASTM D570,ISO 62
Equilibrium, 23 ℃, 50% RH0.32%ASTM D570,ISO 62

IMPACTNominal valueUnitTest method
Charpy Notched Impact Strength
23℃25kJ/m²ISO 179/1eA
Impact strength of cantilever beam notch 
23℃750J/mASTM D256
23℃65kJ/m²ISO 180-A
Notched impact strength of cantilever beam
23℃无断裂 ASTM D256 , ISO 180
Dart impact equipped with measuring instruments
23 ℃, total energy86.9JASTM D3763
Tensile impact strength378kJ/m²ASTM D1822

THERMALNominal valueUnitTest method
Hot deformation temperature 
0.45 MPa, annealed134ASTM D648
1.8 MPa, unannealed121ASTM D648
1.8 MPa, unannealed123ISO 75-2/A
1.8 MPa, annealed125ASTM D648
Vicat Softening Temp
B50141ISO 306
Linear coefficient of thermal expansion
MD:-40~82℃6.8E-51/℃ASTM D696

Electrical performanceNominal valueUnitTest method
Volume resistivity2.0E+17ohms·cmASTM D257
Dielectric strength17kV/mmASTM D149,IEC 60243-1
Dielectric constant ASTM D150
60 Hz3.00 ASTM D150
1 MHz3.00 ASTM D150
Dissipation factor ASTM D150
50 Hz1.0E-3 ASTM D150
1 MHz2.0E-3 ASTM D150

optical performanceNominal valueUnitTest method
Refractive index1.586 ASTM D542 , ISO 489
Transmittance85.0%ASTM D1003
Haze1.0%ASTM D1003

MECHANICALNominal valueUnitTest method
Rockwell hardness ASTM D785
M-level73 ASTM D785
R-level118 ASTM D785
Tensile modulus 
2270MPaASTM D638
2300MPaISO 527-2/50
tensile strength 
yield64.3MPaASTM D638
yield65.2MPaISO 527-2/50
fracture69.1MPaASTM D638
fracture69.6MPaISO 527-2/50
Tensile strain 
yield6.3%ASTM D638
yield6.1%ISO 527-2/50
fracture150%ASTM D638
fracture150%ISO 527-2/50
Bending modulus 
2200MPaASTM D790
2300MPaISO 178
bending strength 
100MPaASTM D790
95.8MPaISO 178
Wear resistance45%ASTM D1044

Notes
1. Typical properties: these are not to be construed as specifications.
2. 2.0 in/min
3. Method I (3 point load), 0.079 in/min
4. 0.079 in/min
5. 3-points
6. 11.1 ft/sec
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