논문 해외 국제전문학술지(SCI급) Modeling the electrical resistivity of polymer composites with segregated structures
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2019-06
- 저자명 Sung-Hoon Park, Jinyoung Hwang, Gyeong-Su Park, Ji-Hwan Ha, Minsu Zhang, Dongearn Kim, Dong-Jin Yun, Sangeui Lee, Sang Hyun Lee
- 학술지명 Nature communications
- 발행국가 해외
- 논문언어 외국어
- 원문 링크 https://www.nature.com/articles/s41467-019-10514-4
홈페이지논문 초록 (Abstract)
Hybrid carbon nanotube composites with two different types of fillers have attracted considerable attention for various advantages. The incorporation of micro-scale secondary fillers creates an excluded volume that leads to the increase in the electrical conductivity. By contrast, nano-scale secondary fillers shows a conflicting behavior of the decreased electrical conductivity with micro-scale secondary fillers. Although several attempts have been made in theoretical modeling of secondary-filler composites, the knowledge about how the electrical conductivity depends on the dimension of secondary fillers was not fully understood. This work aims at comprehensive understanding of the size effect of secondary particulate fillers on the electrical conductivity, via the combination of Voronoi geometry induced from Swiss cheese models and the underlying percolation theory. This indicates a transition in the impact of the excluded volume, i.e., the adjustment of the electrical conductivity was measured in cooperation with loading of second fillers with different sizes.