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Covestro Makroblend® KU 2-7915 Polycarbonate + PBT, Impact Grade

Category Polymer , Thermoplastic , Polycarbonate (PC) , Polycarbonate/Polybutylene Terephthalate (PBT) Blend, Unreinforced , Polyester, TP , Polybutylene Terephthalate (PBT)
Manufacturer Covestro
Trade Name Makroblend®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Covestro Makroblend® KU 2-7915 Polycarbonate + PBT, Impact Grade.pdf
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Material Notes:
ISO 7792-1-PC/PBT,MHPR,-020(PC+PBT)-blendsimpact modifiedInjection molding gradeexcellent toughness at low temperaturesideal for painted applicationsunreinforcedPreprocessingMax. Water content
Physical Properties Metric English Comments
Density 1.20 g/cc
0.0434 lb/in³
ISO 1183
1.02 g/cc

@Temperature 260 °C
0.0368 lb/in³

@Temperature 500 °F
Melt
Water Absorption 0.50 %
0.50 %
Similar to ISO 62
Moisture Absorption at Equilibrium 0.20 %
0.20 %
Similar to ISO 62
Melt Flow 16 g/10 min

@Load 5.00 kg,
Temperature 260 °C
16 g/10 min

@Load 11.0 lb,
Temperature 500 °F
ISO 1133
Mechanical Properties Metric English Comments
Tensile Strength, Yield 50.0 MPa
7250 psi
ISO 527-1/-2
Elongation at Break >= 50 %
>= 50 %
Nominal; ISO 527-1/-2
Elongation at Yield 4.0 %
4.0 %
ISO 527-1/-2
Tensile Modulus 2.10 GPa
305 ksi
ISO 527-1/-2
Charpy Impact Unnotched NB
NB
ISO 179/1eU
NB

@Temperature -30.0 °C
NB

@Temperature -22.0 °F
ISO 179/1eU
Charpy Impact, Notched 6.50 J/cm²
30.9 ft-lb/in²
ISO 179/1eA
5.00 J/cm²

@Temperature -30.0 °C
23.8 ft-lb/in²

@Temperature -22.0 °F
ISO 179/1eA
Thermal Properties Metric English Comments
CTE, linear, Parallel to Flow 90.0 µm/m-°C
50.0 µin/in-°F
ISO 11359-1/-2
CTE, linear, Transverse to Flow 90.0 µm/m-°C
50.0 µin/in-°F
ISO 11359-1/-2
Specific Heat Capacity 1.82 J/g-°C
0.435 BTU/lb-°F
Melt
Thermal Conductivity 0.179 W/m-K
1.24 BTU-in/hr-ft²-°F
Melt
Melting Point 222 °C
432 °F
ISO 11357-1/-3
Deflection Temperature at 0.46 MPa (66 psi) 106 °C
223 °F
ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi) 85.0 °C
185 °F
ISO 75-1/-2
Flammability, UL94 HB

@Thickness 1.60 mm
HB

@Thickness 0.0630 in
IEC 60695-11-10
HB

@Thickness 0.800 mm
HB

@Thickness 0.0315 in
IEC 60695-11-10
Oxygen Index 21 %
21 %
ISO 4589-1/-2
Electrical Properties Metric English Comments
Volume Resistivity >= 1.00e+13 ohm-cm
>= 1.00e+13 ohm-cm
IEC 60093
Surface Resistance >= 1.00e+15 ohm
>= 1.00e+15 ohm
IEC 60093
Dielectric Constant 3.1

@Frequency 1.00e+6 Hz
3.1

@Frequency 1.00e+6 Hz
IEC 60250
3.2

@Frequency 100 Hz
3.2

@Frequency 100 Hz
IEC 60250
Dielectric Strength 30.0 kV/mm
762 kV/in
IEC 60243-1
Dissipation Factor 0.0010

@Frequency 100 Hz
0.0010

@Frequency 100 Hz
IEC 60250
0.012

@Frequency 1.00e+6 Hz
0.012

@Frequency 1.00e+6 Hz
IEC 60250
Comparative Tracking Index 600 V
600 V
IEC 60112
Processing Properties Metric English Comments
Melt Temperature 250 - 270 °C
482 - 518 °F
260 °C
500 °F
Injection Molding; ISO 294
Mold Temperature 60.0 - 80.0 °C
140 - 176 °F
70.0 °C
158 °F
Injection Molding; ISO 10724
Ejection Temperature 170 °C
338 °F
Injection Velocity 200 mm/sec
7.87 in/sec
ISO 294
Descriptive Properties Value Comments
Availability Asia Pacific
Europe
India
Near East/Africa
North America
South and Central America
Eff. thermal diffusivity (m²/s) 9.64E-08
Feature Release agent
Form Pellets
Process Injection Molding
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