In this study,a liquid metal-based thermal interface material with low contact thermal resistance and high thermal conductivity was developed by synergistically chemically modifying the liquid metal interface using oleic acid and thiol.The material primarily utilizes the interaction of the carboxyl groups in oleic acid and the thiol groups in thiol with the liquid metal interface,as well as the reaction between oleic acid and thiol to form sulfonate esters,thereby achieving synergistic stabilization of the liquid metal interface.The developed liquid metal-based thermal interface material exhibits low contact thermal resistance (as low as 0.01 mm2·K·W-1) and high thermal conductivity (up to 8.5 W·m-1·K-1),and demonstrates good CPU cooling performance.The results of this study provide new insights into the development of highly efficient liquid metal-based thermal interface materials.
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