Celanese CoolPoly® E2 Thermally Conductive Liquid Crystalline Polymer

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Celanese CoolPoly® E2 Thermally Conductive Liquid Crystalline Polymer
Categories:	Polymer; Thermoplastic; Liquid Crystal Polymer (LCP)
Material Notes:	CoolPoly E series of thermally conductive plastics transfers heat, a characteristic previously unavailable in injection molding grade polymers. CoolPoly is lightweight, netshape moldable and allows design freedom in applications previously restricted to metals. The E series is electrically conductive and provides inherent EMI/RFI shielding characteristics. CoolPoly E2 is a thermally conductive injection molding resin based on a liquid crystalline (LCP) matrix. CoolPoly E2 is electrically conductive. Thermally conductive polymers like CoolPoly E2 cool faster than standard injection molding grade resins. Information provided by Cool Polymers, Inc. Celanese acquired Cool Polymers in 2014.
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Physical Properties	Metric	English	Comments

Density	1.84 g/cc	0.0665 lb/in³	ISO 1183
Water Absorption	0.10 %	0.10 %	ISO 62
Linear Mold Shrinkage	0.0010 - 0.0030 cm/cm	0.0010 - 0.0030 in/in	ASTM D551

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	75.0 MPa	10900 psi	ISO 527-1
Elongation at Break	0.26 %	0.26 %	ISO 527-1
Tensile Modulus	20.0 GPa	2900 ksi	ISO 527-1
Flexural Strength	135 MPa	19600 psi	ISO 178
Flexural Modulus	32.0 GPa	4640 ksi	ISO 178
Charpy Impact Unnotched	0.500 J/cm²	2.38 ft-lb/in²	ISO 179-1
Charpy Impact, Notched	0.200 J/cm²	0.952 ft-lb/in²	ISO 179-1

Electrical Properties	Metric	English	Comments
Volume Resistivity	70 ohm-cm	70 ohm-cm	ASTM D257
Surface Resistivity per Square	1.0 ohm	1.0 ohm	ASTM D257

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	8.20 µm/m-°C @Temperature 20.0 °C	4.56 µin/in-°F @Temperature 68.0 °F	ISO 11359-2
CTE, linear, Transverse to Flow	9.10 µm/m-°C @Temperature 20.0 °C	5.06 µin/in-°F @Temperature 68.0 °F	ISO 11359-2
Specific Heat Capacity	0.900 J/g-°C	0.215 BTU/lb-°F	ASTM E1461
Thermal Conductivity	20.0 W/m-K	139 BTU-in/hr-ft²-°F	ASTM E1461
Deflection Temperature at 0.46 MPa (66 psi)	260 °C	500 °F	ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	270 °C	518 °F	ISO 75-1/-2
Flammability, UL94	V-0 @Thickness 1.00 mm	V-0 @Thickness 0.0394 in

Processing Properties	Metric	English	Comments
Rear Barrel Temperature	332 - 360 °C	630 - 680 °F
Middle Barrel Temperature	338 - 371 °C	640 - 700 °F
Front Barrel Temperature	343 - 382 °C	649 - 720 °F
Nozzle Temperature	349 - 382 °C	660 - 720 °F
Melt Temperature	349 - 393 °C	660 - 739 °F
Mold Temperature	93.0 - 177 °C	199 - 351 °F
Drying Temperature	180 °C	356 °F
Dry Time	2 - 4 hour	2 - 4 hour
Moisture Content	0.010 %	0.010 %
Dew Point	-34.0 °C	-29.2 °F
Injection Pressure	103 - 138 MPa	14900 - 20000 psi
Hold Pressure	2.00 - 8.00 MPa	290 - 1160 psi
Back Pressure	0.000 - 0.350 MPa	0.000 - 50.8 psi
Screw Speed	75 - 150 rpm	75 - 150 rpm

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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