Chips Stay Cool with New Heat-Sink Compounds.New thermally conductive compounds from Cool Polymers, Inc., Warwick, R.I., are replacing metals in electronic, automotive, chemical-processing, and medical/surgical applications where heat-transfer or heat-sink properties are crucial. Cost savings over metal are said to be 20-40%. Formed in early 1999, the company has formulated its CoolPoly conductive compounds both for its own custom molding and for others' use. The compounds contain conductive reinforcements, either ceramic or carbon, in resins ranging from polyolefins to polycarbonate A category of plastic materials used to make a myriad of products, including CDs and CD-ROMs. , PC/ABS PC/ABS Polycarbonate/Acrylonitrile Butadiene Styrene , nylons, LCP (Link Control Protocol) See PPP. LCP - Link Control Protocol , polyetherimide, and polysulfone. CoolPoly compounds are said to offer thermal conductivity up to 100 W/mK (watts per meter-degree Kelvin), or 100 to 500 times greater than standard polymers. CoolPoly boasts low CLTE CLTE Coefficient of Linear Thermal Expansion (plastics property) CLTE Center for Learning and Teaching Excellence CLTE Cost and Lead Time Estimate and low mold shrinkage. CoolPolymers offers both injection molding and extrusion compounds. It can also formulate materials that combine thermal and electrical conductivity. |
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