【摘 要】
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As a widely used engineering polymer, epoxy resin has been successfully employed in high-performance components and setups. However, the poor thermal and friction properties of traditional epoxy resin greatly limit its application in many extreme environm
【机 构】
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Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education,Dalia
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As a widely used engineering polymer, epoxy resin has been successfully employed in high-performance components and setups. However, the poor thermal and friction properties of traditional epoxy resin greatly limit its application in many extreme environments. In this work, a new kind of epoxy–Ti3C2 with three- dimensional nanosheets (3DNS) composite which was designed by freeze-drying method showed up excellent thermal and friction properties. As a result, the coefficient of thermal expansion (CTE) of epoxy–Ti3C23DNS 3.0 composites was 41.9 ppm/K at 40 ℃, which was lower than that of the traditional epoxy resin (46.7 ppm/K), and the thermal conductivity (TC) was also improved from 0.176 to 0.262 W/(m?K). Meanwhile, epoxy–Ti3C23DNS 1.0 composites showed up the best friction property, with wear rate 76.3％ lower than that of epoxy resin. This work is significant for the research of high-performance composite materials.
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