Yanfei Xu, an assistant professor of mechanical and industrial engineering at the University of Massachusetts Amherst, is co-author of a study that shows how to build polymer films that conduct heat as well or better than some metals and ceramics. The researchers say they can transform polymers that usually function as thermal insulators, into highly efficient thermal conductors that can transfer heat four times higher than stainless steel. But these heat conducting polymers are still electrical insulating. The findings are published in the journal Nature Communications.
Strong, light polymers with high heat conductivity have many uses including as parts for cell phones, computers and other electronic devices where there is a need to transfer heat away from the internal processors and screens. They are lightweight, durable, flexible, corrosion resistant and easy to process. These polymer films are expected to offer unique advantages over traditional heat conductors, such as metals and ceramics.
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