Nano-bridge effect on thermal conductivity of hybrid polymer composites incorporating 1D and 2D nanocarbon fillersopen access
- Authors
- Jang, Ji-un; Lee, Seung Hwan; Kim, Jaewoo; Kim, Seong Yun; Kim, Seong Hun
- Issue Date
- Oct-2021
- Publisher
- Elsevier Ltd
- Keywords
- Analytical modelling; Particle-reinforcement; Polymer-matrix composites (PMCs); Thermal analysis; Thermal properties
- Citation
- Composites Part B: Engineering, v.222, pp.1 - 9
- Indexed
- SCIE
SCOPUS
- Journal Title
- Composites Part B: Engineering
- Volume
- 222
- Start Page
- 1
- End Page
- 9
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/140631
- DOI
- 10.1016/j.compositesb.2021.109072
- ISSN
- 1359-8368
- Abstract
- 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·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.
- Files in This Item
-
- Appears in
Collections - 서울 공과대학 > 서울 유기나노공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/140631)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.