Celanese CoolPoly® D5502 Thermally Conductive Liquid Crystalline Polymer

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Celanese CoolPoly® D5502 Thermally Conductive Liquid Crystalline Polymer
Categories:	Polymer; Thermoplastic; Liquid Crystal Polymer (LCP)
Material Notes:	CoolPoly D 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 D series is electrically non-conductive and can be used for its dielectric properties. CoolPoly D5502 is a thermally conductive injection molding resin based on a liquid crystal polymer matrix. CoolPoly D5502 is electrically insulative. Thermally conductive polymers like CoolPoly D5502 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	Original Value	Comments

Density	1.70 g/cc	ISO 1183
Water Absorption	<= 0.10 %	ISO 62
Linear Mold Shrinkage	0.0040 - 0.0070 cm/cm	ASTM D551

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	69.0 MPa	ISO 527-1
Elongation at Break	0.60 %	ISO 527-1
Tensile Modulus	25.0 GPa	ISO 527-1
Flexural Strength	130 MPa	ISO 178
Flexural Modulus	13.0 GPa	ISO 178
Charpy Impact Unnotched	0.370 J/cm²	ISO 179-1
Charpy Impact, Notched	0.290 J/cm²	ISO 179-1

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+14 ohm-cm	ASTM D257
Surface Resistivity per Square	1.00e+12 ohm	ASTM D257

Thermal Properties	Original Value	Comments
Specific Heat Capacity	1.00 J/g-°C	ASTM E1461
Thermal Conductivity	1.50 W/m-K	ASTM E1461
Deflection Temperature at 0.46 MPa (66 psi)	260 °C	ISO 75-1/-2
Deflection Temperature at 1.8 MPa (264 psi)	270 °C	ISO 75-1/-2
Flammability, UL94	V-0 @Thickness 1.00 mm

Processing Properties	Original Value	Comments
Rear Barrel Temperature	330 - 360 °C
Middle Barrel Temperature	340 - 370 °C
Front Barrel Temperature	345 - 380 °C
Nozzle Temperature	350 - 382 °C
Melt Temperature	349 - 393 °C
Mold Temperature	93.0 - 177 °C
Drying Temperature	180 °C
Dry Time	2 - 4 hour
Moisture Content	0.010 %
Dew Point	-34.0 °C
Injection Pressure	35.0 - 70.0 MPa
Hold Pressure	7.00 - 35.0 MPa
Back Pressure	0.000 - 0.350 MPa
Screw Speed	75 - 150 rpm

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