Celanese VECTRA E820i LCP, 40% Specialty

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Celanese VECTRA E820i LCP, 40% Specialty
Categories:	Polymer; Thermoplastic; Liquid Crystal Polymer (LCP); Liquid Crystal Polymer (LCP), 40% Glass Fiber Filled
Material Notes:	Very easy flowing grade with excellent platability, very good heat resistance and mechanical properties. Mineral filled VECTRA should in principle be predried. Because of the necessary low maximum residual moisture content the use of dry air dryers is recommended. The dew point should be =< - 40° C. The time between drying and processing should be as short as possible. For subsequent storage of the material in the dryer until processed the temperature does not need to be lowered for grades A, B, C, D and V (<= 24 h). Information provided by Celanese Corporation.
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Physical Properties	Metric	English	Comments

Density	1.78 g/cc	0.0643 lb/in³	ISO 1183
Linear Mold Shrinkage, Flow	0.0030 cm/cm	0.0030 in/in	ISO 294-4
Linear Mold Shrinkage, Transverse	0.012 cm/cm	0.012 in/in	ISO 294-4

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	60	60	ISO 2039-2
Tensile Strength at Break	100 MPa	14500 psi	5mm/min; ISO 527-2/1A
Elongation at Break	3.5 %	3.5 %	5mm/min; ISO 527-2/1A
Tensile Modulus	8.50 GPa	1230 ksi	1mm/min; ISO 527-2/1A
Flexural Strength	130 MPa	18900 psi	ISO 178
Flexural Modulus	9.00 GPa	1310 ksi	ISO 178
Izod Impact, Notched (ISO)	4.00 kJ/m²	1.90 ft-lb/in²	ISO 180/1A
Izod Impact, Unnotched (ISO)	45.0 kJ/m² @Temperature 23.0 °C	21.4 ft-lb/in² @Temperature 73.4 °F	ISO 180/1U
Charpy Impact Unnotched	5.40 J/cm²	25.7 ft-lb/in²	ISO 179/1eU
Charpy Impact, Notched	0.800 J/cm²	3.81 ft-lb/in²	ISO 179/1eA

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+13 ohm-cm	1.00e+13 ohm-cm	IEC 60093
Surface Resistance	1.00e+15 ohm	1.00e+15 ohm	IEC 60093
Dielectric Constant	3.6 @Frequency 1e+6 Hz	3.6 @Frequency 1e+6 Hz	IEC 60250
Dissipation Factor	0.0165 @Frequency 1e+6 Hz	0.0165 @Frequency 1e+6 Hz	IEC 60250
Arc Resistance	180 sec	180 sec
Comparative Tracking Index	175 V	175 V	IEC 60112

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	17.0 µm/m-°C	9.44 µin/in-°F	ISO 11359-2
CTE, linear, Transverse to Flow	57.0 µm/m-°C	31.7 µin/in-°F	ISO 11359-2
Melting Point	335 °C	635 °F	ISO 11357-1,-2,-3
Deflection Temperature at 1.8 MPa (264 psi)	220 °C	428 °F	ISO 75-1, -2
Deflection Temperature at 8.0 MPa	130 °C	266 °F	ISO 75-1, -2
Vicat Softening Point	203 °C	397 °F	B50 (50°C/h 50N); ISO 306
Flammability, UL94	V-0	V-0

Processing Properties	Metric	English	Comments
Processing Temperature	20.0 - 30.0 °C	68.0 - 86.0 °F	hopper
	80.0 - 120 °C	176 - 248 °F	cavity
Feed Temperature	60.0 - 80.0 °C	140 - 176 °F
Zone 1	315 - 325 °C	599 - 617 °F
Zone 2	320 - 330 °C	608 - 626 °F
Zone 3	325 - 335 °C	617 - 635 °F
Zone 4	330 - 340 °C	626 - 644 °F
Die Temperature	335 - 345 °C	635 - 653 °F
Melt Temperature	335 - 345 °C	635 - 653 °F
	340 °C	644 °F	ISO 294
Mold Temperature	100 °C	212 °F	ISO 294
Injection Velocity	150 mm/sec	5.91 in/sec	ISO 294
Drying Temperature	170 °C	338 °F
Dry Time	4 - 6 hour	4 - 6 hour
Moisture Content	0.010 %	0.010 %	Necessary low maximum
Injection Pressure	69.0 MPa	10000 psi	ISO 294
	50.0 - 150.0 MPa	7250 - 21750 psi
Hold Pressure	50.0 - 150.0 MPa	7250 - 21750 psi
Back Pressure	<= 3.00 MPa	<= 435 psi
Screw Speed	80 rpm @Diameter 40.0 mm	80 rpm @Diameter 1.57 in
	140 rpm @Diameter 25.0 mm	140 rpm @Diameter 0.984 in
	200 rpm @Diameter 16.0 mm	200 rpm @Diameter 0.630 in
Hot-Working Temperature	335 - 345 °C	635 - 653 °F

Descriptive Properties
Injection molding	Yes
Injection speed	very fast
Special Information	For MID applications mold temperature between 120 - 140°C are recommended.

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