Enhanced Electrical and Thermal Conductivities of Polymer Composites with a Segregated Network of Graphene Nanoplateletsopen access
- Authors
- Kim, Ki Hoon; Jang, Ji-Un; Yoo, Gyun Young; Kim, Seong Hun; Oh, Myung Jun; Kim, Seong Yun
- Issue Date
- Aug-2023
- Publisher
- MDPI
- Keywords
- composites; segregated network; electrical conductivity; thermal conductivity; graphene
- Citation
- MATERIALS, v.16, no.15, pp.1 - 12
- Indexed
- SCIE
SCOPUS
- Journal Title
- MATERIALS
- Volume
- 16
- Number
- 15
- Start Page
- 1
- End Page
- 12
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/189624
- DOI
- 10.3390/ma16155329
- ISSN
- 1996-1944
- Abstract
- Introducing a segregated network constructed through the selective localization of small amounts of fillers can be a solution to overcome the limitations of the practical use of graphene-based conductive composites due to the high cost of fillers. In this study, polypropylene composites filled with randomly dispersed GNPs and a segregated GNP network were prepared, and their conductive properties were investigated according to the formation of the segregated structure. Due to the GNP clusters induced by the segregated structure, the electrical percolation threshold was 2.9 wt% lower than that of the composite incorporating randomly dispersed GNPs. The fully interconnected GNP cluster network inside the composite contributed to achieving the thermal conductivity of 4.05 W/m & BULL;K at 10 wt% filler content. Therefore, the introduction of a segregated filler network was suitable to simultaneously achieve excellent electrical and thermal conductivities at a low content of GNPs.
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Collections - 서울 공과대학 > 서울 유기나노공학과 > 1. Journal Articles
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