Celanese CoolPoly® E4501 Thermally Conductive Polycarbonate

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Celanese CoolPoly® E4501 Thermally Conductive Polycarbonate
Categories:	Polymer; Thermoplastic; Polycarbonate (PC)
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 E4501 is a thermally conductive injection molding resin based on a polycarbonate (PC) matrix. CoolPoly E4501 is electrically conductive. Thermally conductive polymers like CoolPoly E4501 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	1.28 g/cc	0.0462 lb/in³	ISO 1183
Linear Mold Shrinkage	0.0040 cm/cm	0.0040 in/in	ASTM D551
Linear Mold Shrinkage, Transverse	0.0050 cm/cm	0.0050 in/in	ASTM D551

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	43.0 MPa	6240 psi	ISO 527-1
Elongation at Break	1.6 %	1.6 %	ISO 527-1
Tensile Modulus	4.75 GPa	689 ksi	DAM; ISO 527-1
Flexural Strength	77.0 MPa	11200 psi	ISO 178
Flexural Modulus	4.70 GPa	682 ksi	DAM; ISO 178
Charpy Impact Unnotched	1.80 J/cm²	8.57 ft-lb/in²	ISO 179-1
Charpy Impact, Notched	0.400 J/cm²	1.90 ft-lb/in²	ISO 179-1

Thermal Properties	Metric	English	Comments
Specific Heat Capacity	1.41 J/g-°C	0.337 BTU/lb-°F	ASTM E1461
Thermal Conductivity	4.00 W/m-K	27.8 BTU-in/hr-ft²-°F	ASTM E1461

Processing Properties	Metric	English	Comments
Rear Barrel Temperature	280 - 290 °C	536 - 554 °F
Middle Barrel Temperature	290 - 300 °C	554 - 572 °F
Front Barrel Temperature	295 - 310 °C	563 - 590 °F
Melt Temperature	295 - 310 °C	563 - 590 °F
Mold Temperature	70.0 - 95.0 °C	158 - 203 °F
Drying Temperature	105 °C	221 °F
Dry Time	4 hour	4 hour
Dew Point	-30.0 °C	-22.0 °F
Injection Pressure	75.0 - 150 MPa	10900 - 21800 psi
Hold Pressure	55.0 - 100 MPa	7980 - 14500 psi
Back Pressure	0.100 - 0.400 MPa	14.5 - 58.0 psi
Screw Speed	100 - 150 rpm	100 - 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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