Makroblend® KU2-7912/4

(PC+PBT) blend; impact modified; high toughness at low temperatures; unreinforced

Brand: Makroblend
Available in: Europe Middle-East and Africa, Latin America, North America, Asia Pacific

Typical values

Property	Value	Unit	Test method	Condition
Thermal properties
Temperature of Deflection under Load (HDT)	82	°C	ISO 75-1,-2	1.80 MPa
Temperature of Deflection under Load (HDT)	106	°C	ISO 75-1,-2	0.45 MPa
Vicat Softening Temperature	120	°C	ISO 306	50 N; 120 °C/h
Melting Temperature	223	°C	ISO 11357-1,-3	10 °C/min
Coefficient of Linear Thermal Expansion (CLTE), parallel	0.9	10⁻⁴/K	ISO 11359-1,-2	23 to 55 °C
Coefficient of Linear Thermal Expansion (CLTE), normal	0.9	10⁻⁴/K	ISO 11359-1,-2	23 to 55 °C
Burning Behavior	HB		UL 94	1.6 mm
Burning Rate (FMVSS-302)	PASSED		ISO 3795	≥ 1.0 mm
Oxygen Index	21	%	ISO 4589-2	Method A
Thermal Conductivity, through-plane	0.2	W/(m·K)	ISO 8302	23 °C; 50 % r. h.
Glow Wire Test (GWFI)	700	°C	IEC 60695-2-12	2.0 mm
Rheological properties
Melt Volume-flow Rate (MVR)	16	cm³/10 min	ISO 1133-1	260 °C/5 kg
Molding Shrinkage, parallel/normal	0.7 – 0.9	%	b. o. ISO 2577	Value range based on general practical experience; 600 bar
Post-Molding Shrinkage, parallel/normal	0.1 – 0.2	%	b. o. ISO 2577	Value range based on general practical experience; 1 h 90 °C
Göttfert Melt Viscosity	670	Pa·s	Bayer test	260 °C; 165 s⁻¹
Mechanical properties (23 °C; 50 % r. h.)
Tensile Modulus	2050	MPa	ISO 527-1,-2	1 mm/min
Yield Stress	50	MPa	ISO 527-1,-2	50 mm/min
Yield Strain	4	%	ISO 527-1,-2	50 mm/min
Stress at Break	45	MPa	ISO 527-1,-2	50 mm/min
Nominal Strain at Break	≥ 50	%	ISO 527-1,-2	50 mm/min
Flexural Modulus	2100	MPa	ISO 178	2 mm/min
Flexural Strength	75	MPa	ISO 178	2 mm/min
Flexural Stress at 3.5 % Flexural Strain	66	MPa	ISO 178	2 mm/min
Flexural Strain at Flexural Strength	5.5	%	ISO 178	2 mm/min
Izod Notched Impact Strength	60	kJ/m²	ISO 180/A	23 °C
Izod Notched Impact Strength	52	kJ/m²	ISO 180/A	-20 °C
Izod Notched Impact Strength	45	kJ/m²	ISO 180/A	-30 °C
Charpy Notched Impact Strength	60	kJ/m²	ISO 179-1/1eA	23 °C
Charpy Notched Impact Strength	45	kJ/m²	ISO 179-1/1eA	-30 °C
Ball Indentation Hardness	100	N/mm²	ISO 2039-1	358 N
Other properties (23 °C)
Water Absorption (Saturation Value)	0.6	%	ISO 62	Water at 23 °C
Water Absorption (Equilibrium Value)	0.2	%	ISO 62	23 °C; 50 % r. h.
Density	1200	kg/m³	ISO 1183-1
Bulk Density	700	kg/m³	ISO 60	Pellets
Electrical properties (23 °C; 50 % r. h.)
Relative Permittivity	3.2		IEC 60250	100 Hz
Relative Permittivity	3.1		IEC 60250	1 MHz
Dielectric Dissipation Factor	15	10⁻⁴	IEC 60250	100 Hz
Dielectric Dissipation Factor	130	10⁻⁴	IEC 60250	1 MHz
Volume Resistivity	1.00E+15	Ω·m	IEC 62631-3-1
Surface Resistivity	1.00E+17	Ω	IEC 62631-3-2
Electric Strength	35	kV/mm	IEC 60243-1	1 mm
Comparative Tracking Index (CTI)	500	V	IEC 60112	Solution A
Comparative Tracking Index (CTI M)	100		IEC 60112	Solution B
Electrolytic Corrosion	A1		IEC 60426
Processing conditions for test specimens
Injection Molding - Melt Temperature	260	°C	ISO 294-1
Injection Molding - Mold Temperature	70	°C	ISO 294-1
Injection Molding - Injection Velocity	200	mm/s	ISO 294-1
Recommended processing and drying conditions
Dry Air Drying Temperature	105	°C
Dry Air Drying Time	2 – 4	h
Moisture Content max. (%)	0 – 0.02	%
Melt Temperatures	250 – 270	°C
Standard Melt Temperature	260	°C
Barrel Temperatures	230 – 240	°C		Rear
Barrel Temperatures	240 – 250	°C		Middle
Barrel Temperatures	250 – 260	°C		Front
Barrel Temperatures	260 – 270	°C		Nozzle
Mold Temperatures	60 – 80	°C
Hold Pressure (% of Injection Pressure)	50 – 75	%
Plastic Back Pressure (specific)	50 – 100	bar
Peripheral Screw Speed	0.1 – 0.2	m/s
Shot-to-Cylinder Size	30 – 70	%
Vent Depth	0.025 – 0.075	mm

Documents

Technical Data Sheet
en
Safety Data Sheet
en_DE
Viskosität Schergeschwindigkeit
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Secant modulus - Strain
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Viscosity Shear Rate
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Spannung-Dehnung
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Specific Volume-Temperature (pvT)
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Spezifisches Volumen-Temperatur (pvT)
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Sekantenmodul-Dehnung
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Stress-Strain
en

EU-CLP

Hazard Classes / Hazard Categories

According to Regulation (EC) No 1272/2008 on classification, labelling

and packaging of substances and mixtures (the 'CLP Regulation')

No classification in accordance with the Regulation (EC) No. 1272/2008.

GB-CLP

Hazardous classification under EU-CLP is not yet available; therefore, the product is not yet placed on the market within the EU-REACh regulatory area.

Typical values

Documents

Hazard information

EU-CLP

GB-CLP

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