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Makroblend® UT250

(PC+PET)-blend, impact modified, easy release, injection molding. Makroblend UT250 offers high heat resistance, good chemical resistance and flowability. Additionally, molded parts from UT250 having exceptional dimensional stability.

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About

Product Types

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Material

Plastics
Impact resistant, Dimensionally stable, Chemical resistant, 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 255 - 265
Barrel Temperatures - Middle - °C 250 - 260
Barrel Temperatures - Nozzle - °C 255 - 270
Barrel Temperatures - Rear - °C 245 - 255
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 50 - 100
Peripheral Screw Speed - m/s 0.05 - 0.2
Plastic Back Pressure (specific) - bar 50 - 150
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
Temperature of deflection under load ISO 75-1,-2 0.45 MPa °C 125
Temperature of deflection under load ISO 75-1,-2 1.80 MPa °C 110
Vicat softening temperature ISO 306 50 N; 120 °C/h °C 140
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 -30 °C kJ/m² 30
Charpy notched impact strength ISO 179-1eA 23 °C kJ/m² 70
Flexural modulus ISO 178 2 mm/min MPa 2300 - 2300
Flexural strain at flexural strength ISO 178 2 mm/min % 6.1 - 6.1
Flexural strength ISO 178 2 mm/min MPa 88
Flexural stress at 3.5 % strain ISO 178 2 mm/min MPa 72 - 72
Izod impact strength ISO 180-1C -30 °C kJ/m² N
Izod impact strength ISO 180-1C 23 °C kJ/m² N
Izod notched impact strength ISO 180-A 23 °C kJ/m² 60
Izod notched impact strength ISO 180-A -20 °C kJ/m² 40
Izod notched impact strength ISO 180-A -30 °C kJ/m² 25
Nominal strain at break ISO 527-1,-2 50 mm/min % >50
Stress at break ISO 527-1,-2 50 mm/min MPa 50
Tensile modulus ISO 527-1,-2 1 mm/min MPa 2250 - 2250
Yield strain ISO 527-1,-2 50 mm/min % 5
Yield stress ISO 527-1,-2 50 mm/min MPa 55
Property Name Standard Test condition Unit Value
Melt volume-flow rate ISO 1133 265 °C; 5 kg cm³/10 min 22
Molding shrinkage, parallel/normal b.o. ISO 2577 Value range based on general practical experience (600bar) % 0.6 - 0.8
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 250
Dissipation factor IEC 60250 1 MHz 10^-4^ 146
Dissipation factor IEC 60250 100 Hz 10^-4^ 16
Electrical strength IEC 60243-1 1 mm kV/mm 34
Relative permittivity IEC 60250 1 MHz 3.0
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
Drying temperature ISO 294 °C 110
Drying time ISO 294 h 4 - 4
Injection molding-Injection velocity ISO 294 mm/s 200
Injection molding-Melt temperature ISO 294 °C 265 - 265
Injection molding-Mold temperature ISO 294 °C 70 - 70
Residual humidity ISO 294 % <0.01
Property Name Standard Test condition Unit Value
Density ISO 1183-1 kg/m³ 1220 - 1220
Water absorption (equilibrium value) ISO 62 23 °C; 50 % r. h. % 0.2
Water absorption (saturation value) ISO 62 Water at 23 °C % 0.55

Downloads

Technical Data Sheet
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Safety Data Sheet
No direct download available, please visit www.productsafetyfirst.covestro.com
Download
Viskosität Schergeschwindigkeit Makroblend® UT250 (Multipoint Data Sheet)
Viscosity Shear Rate Makroblend® UT250 (Multipoint Data Sheet)

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