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Covestro Makroblend® KU 2-7940 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 Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Covestro Makroblend® KU 2-7940 Polycarbonate + PBT, Impact Grade.pdf
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Material Notes:
Developmental productISO 7792-1-PC/PBT,MHPR,-020(PC+PBT)-blendsimpact modifiedInjection molding gradehigh toughness at low temperaturesunreinforcedPreprocessingMax. Water content
Physical Properties Metric English Comments
Density 1.20 g/cc
0.0434 lb/in³
ISO 1183
Water Absorption 0.50 %
0.50 %
Similar to ISO 62
Moisture Absorption at Equilibrium 0.20 %
0.20 %
Similar to ISO 62
Melt Flow 30 g/10 min

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

@Load 11.0 lb,
Temperature 500 °F
estimated from MVR using room temperature density; ISO 1133
Mechanical Properties Metric English Comments
Tensile Strength, Yield 55.0 MPa
7980 psi
ISO 527-1/-2
Elongation at Break >= 50 %
>= 50 %
Nominal; ISO 527-1/-2
Elongation at Yield 4.5 %
4.5 %
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 5.20 J/cm²
24.7 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
Vicat Softening Point 122 °C
252 °F
50°C/h 50N; ISO 306
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
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
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
Feature Release agent
Form Pellets
Process Injection Molding
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