Hanyang University
College of Engineering
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Faculty
| Prof. Kim Seong-hun's Team Developed New Theoretical Equation for Improving Nanocomposites' Thermal Conductivity | |
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작성자 : 한양대학교 공과대학(help@hanyang.ac.kr) 작성일 : 21.08.17 조회수 : 308 URL : |
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Electronic device miniaturizing involves many instances of heat release in the integration of components, which leads to device defects. Therefore, numerous research on incorporating graphene and carbon nanotubes as fillers for controlling heat have been conducted. The joint research team, comprised of Professor Kim Seong-hun, Professor Kim Seong-yun from Chonbuk National University, and Jang Ji-un, a doctorate student at Hanyang University's Department of Organic and Nano System Engineering, developed a theoretical equation that could predict the heat conductivity of composite materials with the nanohybrid fillers incorporated based on the nanostructure. The nanohybrid fillers in the composite material are composed of two fillers, carbon nanotube and graphene. The research team created hybrid polymer composites that are filled with graphene and carbon nanotube and observed nano bridges in which hybrid fillers are connected three-dimensionally, using the Micro-CT. They could identify the relationship between the nano-bridge effect and the thermal conductivity of hybrid polymer composites. The research team suggested a KJL (Kim-Jang-Lee) model, named after the research team members’ initials, based on the research discoveries and experiment results. The research team confirmed that the materials’ thermal conduction for controlling heat could be accurately calculated by the proposed model and could predict the construction of hybrid composites with optimum heat release based on the model. The research result was published in the recent online edition of the international academic journal Composites Part B: Engineering, and it will be printed on October 1st, 2021. The research paper is titled, "Nano-bridge effect on thermal conductivity of hybrid polymer composites incorporating 1D and 2D nanocarbon fillers."
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