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Rulon Bearings

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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 PropertiesOriginal ValueComments
Density 1.78 g/ccISO 1183
Linear Mold Shrinkage, Flow 0.0030 cm/cmISO 294-4
Linear Mold Shrinkage, Transverse 0.012 cm/cmISO 294-4
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell M 60ISO 2039-2
Tensile Strength at Break 100 MPa5mm/min; ISO 527-2/1A
Elongation at Break 3.5 %5mm/min; ISO 527-2/1A
Tensile Modulus 8500 MPa1mm/min; ISO 527-2/1A
Flexural Strength 130 MPaISO 178
Flexural Modulus 9000 MPaISO 178
Izod Impact, Notched (ISO) 4.00 kJ/m²ISO 180/1A
Izod Impact, Unnotched (ISO) 45.0 kJ/m²
@Temperature 23.0 °C
ISO 180/1U
Charpy Impact Unnotched 54.0 kJ/m²ISO 179/1eU
Charpy Impact, Notched 8.00 kJ/m²ISO 179/1eA
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 1.00e+13 ohm-cmIEC 60093
Surface Resistance 1.00e+15 ohmIEC 60093
Dielectric Constant 3.6
@Frequency 1e+6 Hz
IEC 60250
Dissipation Factor 0.0165
@Frequency 1e+6 Hz
IEC 60250
Arc Resistance 180 sec
Comparative Tracking Index 175 VIEC 60112
 
Thermal PropertiesOriginal ValueComments
CTE, linear, Parallel to Flow 17.0 µm/m-°CISO 11359-2
CTE, linear, Transverse to Flow 57.0 µm/m-°CISO 11359-2
Melting Point 335 °CISO 11357-1,-2,-3
Deflection Temperature at 1.8 MPa (264 psi) 220 °CISO 75-1, -2
Deflection Temperature at 8.0 MPa 130 °CISO 75-1, -2
Vicat Softening Point 203 °CB50 (50°C/h 50N); ISO 306
Flammability, UL94 V-0
 
Processing PropertiesOriginal ValueComments
Processing Temperature 20.0 - 30.0 °Chopper
 80.0 - 120 °Ccavity
Feed Temperature 60.0 - 80.0 °C
Zone 1 315 - 325 °C
Zone 2 320 - 330 °C
Zone 3 325 - 335 °C
Zone 4 330 - 340 °C
Die Temperature 335 - 345 °C
Melt Temperature 335 - 345 °C
 340 °CISO 294
Mold Temperature 100 °CISO 294
Injection Velocity 150 mm/secISO 294
Drying Temperature 170 °C
Dry Time 4 - 6 hour
Moisture Content 0.010 %Necessary low maximum
Injection Pressure 69.0 MPaISO 294
 7250 - 21750 psi
Hold Pressure 7250 - 21750 psi
Back Pressure <= 435 psi
Screw Speed 80 rpm
@Diameter 40.0 mm
 140 rpm
@Diameter 25.0 mm
 200 rpm
@Diameter 16.0 mm
Hot-Working Temperature 335 - 345 °C
 
Descriptive Properties
Injection moldingYes
Injection speedvery fast
Special InformationFor MID applications mold temperature between 120 - 140°C are recommended.

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