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Material Comparison

Product Info
Product Name
Brand Name
Usages
Properties
Certificates
PC/PBT KU2-7912/4 BK COVESTRO GERMANY
Makroblend® 
film、Printer、shoes
wear resistant、High elasticity、Fast forming cycle
UL
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Plastic Datasheets

physical property
Test Condition
Test Method
Unit
PC/PBT/COVESTRO GERMANY/KU2-7912/4 BK
Apparent density
ISO60
g/cm³
0
Density/specific gravity
23°C
ISO1183
g/cm³
1
Melt volume flow rate
260°C/5.0kg
ISO1133
cm3/10min
1
Water absorption rate
饱和,23°C
ISO62
%
0
Water absorption rate
平衡,23°C,50%RH
ISO62
%
0
Mechanical performance
Test Condition
Test Method
Unit
PC/PBT/COVESTRO GERMANY/KU2-7912/4 BK
Nominal tensile fracture strain
23°C
ISO527-2/50
%
>
Tensile modulus
23°C
ISO527-2/1
Mpa
2
Tensile strain
屈服,23°C
ISO527-2/50
%
4
Tensile stress
屈服,23°C
ISO527-2/50
Mpa
5
Tensile stress
断裂,23°C
ISO527-2/50
Mpa
4
Bending modulus 2
23°C
ISO178
Mpa
2
Bending strain 3
23°C
ISO178
%
5
Bending stress 2
23°C
ISO178
Mpa
7
Bending stress 2
3.5%Strain,23°C
ISO178
Mpa
6
Thermal performance
Test Condition
Test Method
Unit
PC/PBT/COVESTRO GERMANY/KU2-7912/4 BK
ThermalConductivity5
23°C
ISO8302
W/m/K
0
Hot deformation temperature
0.45MPa,未退火
ISO75-2/B
°C
1
Hot deformation temperature
1.8MPa,未退火
ISO75-2/A
°C
8
Melting temperature 5
ISO11357-3
°C
2
Vicat softening temperature
ISO306/B120
°C
1
Linear coefficient of thermal expansion
MD:23到55°C
ISO11359-2
cm/cm/°C
9
Linear coefficient of thermal expansion
TD:23to55°C
ISO11359-2
cm/cm/°C
9
Electrical performance
Test Condition
Test Method
Unit
PC/PBT/COVESTRO GERMANY/KU2-7912/4 BK
Surface resistivity
IEC60093
ohms
>
Dielectric strength
23°C,1.00mm
IEC60243-1
KV/mm
3
Leakage Trace Index
解决方案A
IEC60112
V
5
Leakage Trace Index
解决方案B
IEC60112
V
1
Volume resistivity
23°C
IEC60093
ohms·cm
>
Impact performance
Test Condition
Test Method
Unit
PC/PBT/COVESTRO GERMANY/KU2-7912/4 BK
Charpy Notched Impact Strength
-30°C
ISO179/1eA
kJ/m²
4
Charpy Notched Impact Strength
23°C
ISO179/1eA
kJ/m²
6
Impact strength of cantilever beam gap
-30°C
ISO180/A
kJ/m²
4
Impact strength of cantilever beam gap
-20°C
ISO180/A
kJ/m²
5
Impact strength of cantilever beam gap
23°C
ISO180/A
kJ/m²
6
hardness
Test Condition
Test Method
Unit
PC/PBT/COVESTRO GERMANY/KU2-7912/4 BK
Ball pressure hardness
ISO2039-1
Mpa
1
flammability
Test Condition
Test Method
Unit
PC/PBT/COVESTRO GERMANY/KU2-7912/4 BK
Extreme Oxygen Index 6
ISO4589-2
%
2
Burning wire flammability index
2.0mm
IEC60695-2-12
°C
7
Supplementary Information
Test Condition
Test Method
Unit
PC/PBT/COVESTRO GERMANY/KU2-7912/4 BK
GottfertMeltViscosity7
260°C
内部方法
Pa·s
6