Covestro Makrolon® Rx1452 Polycarbonate

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Covestro Makrolon® Rx1452 Polycarbonate
Categories:	Polymer; Thermoplastic; Polycarbonate (PC); Polycarbonate, Molded
Material Notes:	MVR (300 °C/1.2 kg) 16 cm³/10 min; medical devices; low viscosity; easy release; injection molding - melt temperature 280 - 320 °C As of 1 September 2015, Bayer MaterialScience was separated from Bayer AG and officially adopted its new name – Covestro.
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Physical Properties	Original Value	Comments

Bulk Density	0.660 g/cc	pellets; IOS 60
Density	1.20 g/cc	ISO 1183
Moisture Absorption at Equilibrium	0.12 %	ISO 62
Water Absorption at Saturation	0.30 %	ISO 62
Linear Mold Shrinkage	0.0060 - 0.0080 cm/cm	parallel/normal; b.o. ISO 2577
Linear Mold Shrinkage, Flow	0.0070 cm/cm	60x60x2 mm; 280 °C / MT 80 °C; 500 bar; ISO 294-4
Linear Mold Shrinkage, Transverse	0.0070 cm/cm	60x60x2 mm; 280 °C / MT 80 °C; 500 bar; ISO 294-4
Melt Flow	17 g/10 min @Load 1.20 kg, Temperature 300 °C	ISO 1133

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	70.0 MPa	50 mm/min; ISO 527-1/-2
Tensile Strength, Yield	68.0 MPa	50 mm/min; ISO 527-1/-2
Elongation at Break	>= 50 %	Nominal, 50 mm/min; ISO 527-1/-2
	130 %	50 mm/min; ISO 527-1/-2
Elongation at Yield	6.0 %	50 mm/min; ISO 527-1/-2
Tensile Modulus	2400 MPa	1 mm/min; ISO 527-1/-2
Flexural Strength	100 MPa	2 mm/min; ISO 178
Flexural Yield Strength	78.0 MPa @Strain 3.2 %	2 mm/min; ISO 178
Flexural Modulus	2.40 GPa	2 mm/min; ISO 178
Flexural Strain at Yield	6.8 %	2 mm/min; ISO 178
Izod Impact, Notched (ISO)	12.0 kJ/m² @Thickness 3.00 mm, Temperature -30.0 °C	complete break; ISO 7391/b.o. ISO 180-A
	65.0 kJ/m² @Thickness 3.00 mm, Temperature 23.0 °C	partial break; ISO 7391/b.o. ISO 180-A
Charpy Impact Unnotched	NB	ISO 179/1eU
	NB @Temperature -30.0 °C	ISO 179/1eU
Impact	5300	Puncture - maximum force (N); ISO 6603-2
	6200 @Temperature -30.0 °C	Puncture - maximum force (N); ISO 6603-2
Puncture Energy	60.0 J	ISO 6603-2
	65.0 J @Temperature -30.0 °C	ISO 6603-2

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	65.0 µm/m-°C @Temperature 23.0 - 55.0 °C	ISO 11359-1/-2
CTE, linear, Transverse to Flow	65.0 µm/m-°C @Temperature 23.0 - 55.0 °C	ISO 11359-1/-2
Thermal Conductivity	0.200 W/m-K	cross-flow; ISO 8302
Hot Ball Pressure Test	118 °C	ISO 2039-1
	132 °C	IEC 60695-10-2
Deflection Temperature at 0.46 MPa (66 psi)	132 °C	ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	120 °C	ISO 75-1/-2
Vicat Softening Point	140 °C	50°C/h 50N; ISO 306
	141 °C	120°C/h 50N; ISO 306
Flash Point	480 °C	ignition; ASTM D1929
	550 °C	self ignition; ASTM D1929

Optical Properties	Original Value	Comments
Haze	1.0 % @Thickness 76.2 mm	ISO 14782
Transmission, Visible	86 % @Thickness 76.2 mm	ISO 13468-2

Processing Properties	Original Value	Comments
Melt Temperature	280 °C	Injection Molding; ISO 294
Mold Temperature	80.0 °C	Injection Molding; ISO 294
Injection Velocity	200 mm/sec	ISO 294

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