Jang, Ji-un Lee, Seung Hwan Kim, Jaewoo Kim, Seong Yun Kim, Seong Hun 2024-01-19T13:32:52Z 2024-01-19T13:32:52Z 2022-01-10 2021-10-01 1359-8368 https://pubs.kist.re.kr/handle/201004/116269 Numerous studies have been reported on thermal interface materials based on synergistic hybrid effects, however, most of them contain only fragmentary experimental results and the related model has been rarely proposed to explain the effects exactly. Herein, the thermal conductivities of the composites were systematically evaluated according to various filler contents and ratios. It was found that the fraction of the secondary filler inducing the maximum synergistic effect decreased as the total filler content increased. In addition, when the fraction was higher than the optimum fraction, the anti-synergistic effect occurred. At the optimum fraction, effective phonon transfer was induced due to the improved filler network formation of graphene nanoplatelet (GNP)-carbon nanotube (CNT), thereby achieving high thermal conductivity of 7.69 W/m center dot K at fGNP = 27.69 vol% and fCNT = 0.57 vol%. Moreover, the Kim-Jang-Lee (KJL) model for the synergistic effect was proposed by introducing filler-ratio variables into the critical percolation equation reported previously, and the KJL model for the anti-synergistic effect was proposed based on the rule of mixture of composites filled with the optimal connected filler network and filled with the excessive secondary filler. English ELSEVIER SCI LTD WALLED CARBON NANOTUBE GRAPHITE NANOPLATELET EPOXY COMPOSITE GRAPHENE NITRIDE Nano-bridge effect on thermal conductivity of hybrid polymer composites incorporating 1D and 2D nanocarbon fillers Article 10.1016/j.compositesb.2021.109072 1 COMPOSITES PART B-ENGINEERING, v.222 COMPOSITES PART B-ENGINEERING 222 scie scopus 000688597900001 2-s2.0-85107926176 Engineering, Multidisciplinary Materials Science, Composites Engineering Materials Science Article WALLED CARBON NANOTUBE GRAPHITE NANOPLATELET EPOXY COMPOSITE GRAPHENE NITRIDE Polymer-matrix composites (PMCs) Particle-reinforcement Thermal properties Analytical modelling Thermal analysis