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Improvement of insulating and thermal properties of SiO2-coated copper nanowire composites
유석규,김주헌 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.0
Copper nanowire/epoxy terminated poly (dimethyl siloxane) (ETDS) composites were prepared and used as thermal interface materials (TIMs). The surfaces of copper nanowire were coated with SiO2 to enhance their thermal and mechanical properties in the ETDS matrix. The thermal conductivity of CuNW/ETDS composites continuously increased with an increasing loading of CuNW filler. Moreover, at fixed particle loadings, an increased thermal conductivity was observed in surface-modified composites (CuNW@SiO2/ETDS). The effects of SiO2-coated copper nanowire were investigated using thermal conductivity prediction models. The storage modulus graphs illustrated the enhancement achieved by surface treatment of CuNW. In addition, the SiO2-coated copper nanowire composites showed decreased electrical conductivity as compared to the raw copper nanowire composites. Thus, these SiO2-coated copper nanowire/ETDS composites may be used as thermal interface materials in the electronics industry.