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Makroblend® DP7645

(PC+PET) blend, impact modified, Injection molding grade, unreinforced, applications: automotive radiator grills

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About

Product Types

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Material

Plastics
Impact resistant, Paintable, Heat resistant

General Characterization

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Storage Conditions

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Sampling

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Packaging Type

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Technical Properties & Datasheets

Property Name Standard Test condition Unit Value
Barrel Temperatures - Front - °C 250 - 260
Barrel Temperatures - Middle - °C 240 - 250
Barrel Temperatures - Nozzle - °C 260 - 270
Barrel Temperatures - Rear - °C 230 - 240
Dry Air Drying Temperature - °C 110 - 110
Dry Air Drying Time - h 2 - 4
Hold Pressure (% of injection pressure) - % 50 - 75
Melt Temperatures - °C 260 - 280
Moisture Content max. (%) - % <= 0,01
Mold Temperatures - °C 60 - 80
Peripheral Screw Speed - m/s 0.1 - 0.2
Plastic Back Pressure (specific) - bar 50 - 100
Shot-to-Cylinder Size - % 30 - 70
Standard Melt Temperature - °C 270
Vent Depth - mm 0.025 - 0.075
Property Name Standard Test condition Unit Value
Burning behavior UL 94 UL 94 0.8 mm Class HB
Burning behavior UL 94 (1.5 mm) UL 94 1.6 mm Class HB
Burning rate (US-FMVSS) ISO 3795 >=1.0 mm mm/min passed
Coefficient of linear thermal expansion, parallel ISO 11359-1,-2 23 to 55 °C 10^-4^/K 0.8
Coefficient of linear thermal expansion, transverse ISO 11359-1,-2 23 to 55 °C 10^-4^/K 0.8
Oxygen index ISO 4589-2 Method A % 20
Temperature of deflection under load ISO 75-1,-2 1.80 MPa °C 94
Thermal conductivity, cross-flow ISO 8302 23 °C; 50 % r. h. W/(m*K) 2
Vicat softening temperature ISO 306 50 N; 120 °C/h °C 133
Property Name Standard Test condition Unit Value
Ball indentation hardness ISO 2039-1 N/mm² 100
Charpy impact strength ISO 179-1eU -30 °C kJ/m² N
Charpy impact strength ISO 179-1eU 23 °C kJ/m² N
Charpy notched impact strength ISO 179-1eA 23 °C kJ/m² 55
Flexural modulus ISO 178 2 mm/min MPa 2100 - 2100
Flexural strain at flexural strength ISO 178 2 mm/min % 5.7 - 5.7
Flexural strength ISO 178 2 mm/min MPa 75
Flexural stress at 3.5 % strain ISO 178 2 mm/min MPa 65 - 65
Izod impact strength ISO 180-U -30 °C kJ/m² N
Izod impact strength ISO 180-U 23 °C kJ/m² N
Izod notched impact strength ISO 180-A -10 °C kJ/m² 45
Izod notched impact strength ISO 180-A 23 °C kJ/m² 50
Izod notched impact strength ISO 180-A -20 °C kJ/m² 23
Nominal strain at break ISO 527-1,-2 50 mm/min % > 50
Stress at break ISO 527-1,-2 50 mm/min MPa 40
Tensile modulus ISO 527-1,-2 1 mm/min MPa 2100 - 2100
Yield strain ISO 527-1,-2 50 mm/min % 4.5
Yield stress ISO 527-1,-2 50 mm/min MPa 50
Property Name Standard Test condition Unit Value
Göttfert melt viscosity Bayer test 165 s^-1^; 260 °C Pa*s 600
Melt volume-flow rate ISO 1133 260 °C; 5 kg cm³/10 min 12
Molding shrinkage, parallel/normal b.o. ISO 2577 Value range based on general practical experience (600bar) % 6 - 8
Post- shrinkage, parallel/normal b.o. ISO 2577 Value range based on general practical experience (1h; 90°C) % 0,1 - 0,2
Property Name Standard Test condition Unit Value
Comparative tracking index CTI IEC 60112 Solution A Rating 175
Dissipation factor IEC 60250 1 MHz 10^-4^ 144
Dissipation factor IEC 60250 100 Hz 10^-4^ 13
Electrical strength IEC 60243-1 1 mm kV/mm 33
Relative permittivity IEC 60250 1 MHz 3.3
Relative permittivity IEC 60250 100 Hz 3.2
Surface resistivity IEC 60093 Ohm >1E17
Volume resistivity IEC 60093 Ohm*m >1E15
Property Name Standard Test condition Unit Value
Injection molding-Injection velocity ISO 294 mm/s 200
Injection molding-Melt temperature ISO 294 °C 270 - 270
Injection molding-Mold temperature ISO 294 °C 70 - 70
Property Name Standard Test condition Unit Value
Bulk density ISO 60 g/cm³ 0.7
Density ISO 1183-1 kg/m³ 1200 - 1200
Water absorption (equilibrium value) ISO 62 23 °C; 50 % r. h. % 0.15
Water absorption (saturation value) ISO 62 Water at 23 °C % 0.3

Downloads

Technical Data Sheet
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Safety Data Sheet
No direct download available, please visit www.productsafetyfirst.covestro.com
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Sekantenmodul-Dehnung Makroblend® DP7645 (Multipoint Data Sheet)
Viscosity Shear Rate Makroblend® DP7645 (Multipoint Data Sheet)
Spannung-Dehnung Makroblend® DP7645 (Multipoint Data Sheet)
Stress-Strain Makroblend® DP7645 (Multipoint Data Sheet)
Secant modulus - Strain Makroblend® DP7645 (Multipoint Data Sheet)
Viskosität Schergeschwindigkeit Makroblend® DP7645 (Multipoint Data Sheet)

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