Covestro Bayblend® T90 MF-20 Polycarbonate + ABS, Mineral Filled

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Covestro Bayblend® T90 MF-20 Polycarbonate + ABS, Mineral Filled
Categories:	Polymer; Thermoplastic; Polycarbonate (PC)
Material Notes:	Developmental product Injection molding grade 20 % mineral filled very good flow reduced coefficient of thermal dilatation tensile modulus = 5200 MPa Vicat/B 120 = 130 °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

Density	1.29 g/cc	ISO 1183
Moisture Absorption at Equilibrium	0.20 %	ISO 62
Water Absorption at Saturation	0.50 %	ISO 62
Viscosity	240000 cP @Shear Rate 1000 1/s, Temperature 260 °C	Melt; b.o. ISO 11443-A
Linear Mold Shrinkage, Flow	0.0030 - 0.0050 cm/cm @Thickness 3.00 mm	150x105x3 mm; 260 °C / MT 80 °C; b.o. ISO 2577
Linear Mold Shrinkage, Transverse	0.0025 - 0.0045 cm/cm @Thickness 3.00 mm	150x105x3 mm; 260 °C / MT 80 °C; b.o. ISO 2577
Melt Flow	15 g/10 min @Load 5.00 kg, Temperature 260 °C	estimated from MVR using room temperature density; ISO 1133

Mechanical Properties	Original Value	Comments
Tensile Strength at Break	50.0 MPa	50 mm/min; ISO 527-1/-2
Tensile Strength, Yield	60.0 MPa	50 mm/min; ISO 527-1/-2
Elongation at Break	9.0 %	50 mm/min; ISO 527-1/-2
Elongation at Yield	3.2 %	50 mm/min; ISO 527-1/-2
Tensile Modulus	4900 MPa	1 mm/min; ISO 527-1/-2
Izod Impact, Notched (ISO)	6.00 kJ/m² @Temperature -30.0 °C	ISO 180-A
	20.0 kJ/m² @Temperature 23.0 °C	ISO 180-A
Izod Impact, Unnotched (ISO)	50.0 kJ/m² @Temperature -30.0 °C	ISO 180-U
	100 kJ/m² @Temperature 23.0 °C	ISO 180-U

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+14 ohm-cm	IEC 60093
Surface Resistance	1.00e+16 ohm	IEC 60093
Dielectric Constant	3.2 @Frequency 1e+6 Hz	IEC 60250
	3.3 @Frequency 100 Hz	IEC 60250
Dielectric Strength	35.0 kV/mm	1 mm; IEC 60243-1
Dissipation Factor	0.0015 @Frequency 100 Hz	IEC 60250
	0.0032 @Frequency 1e+6 Hz	IEC 60250
Comparative Tracking Index	225 V	Solution A; IEC 60112

Thermal Properties	Original Value	Comments
CTE, linear, Parallel to Flow	40.0 µm/m-°C @Temperature 23.0 - 55.0 °C	ISO 11359-1,-2
CTE, linear, Transverse to Flow	56.0 µm/m-°C @Temperature 23.0 - 55.0 °C	ISO 11359-1,-2
Deflection Temperature at 0.46 MPa (66 psi)	127 °C	ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	111 °C	ISO 75-1/-2
Vicat Softening Point	128 °C @Load 5.10 kg	50°C/h; ISO 306
	130 °C @Load 5.10 kg	120°C/h; ISO 306
Flammability, UL94	HB @Thickness 0.850 mm	IEC 60695-11-10

Processing Properties	Original Value	Comments
Melt Temperature	260 °C	Injection Molding; ISO 294
Mold Temperature	80.0 °C	Injection Molding; ISO 294
	70.0 - 100 °C
Injection Velocity	240 mm/sec	ISO 294
Drying Temperature	100 - 110 °C
Dry Time	2.00 - 4.00 hour	Dry air dryer
	2.00 - 4.00 hour	Fresh air dryer (high speed dryer)
Moisture Content	0.010 - 0.050 %

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PB09743 / 92583

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