Chemically modified boron nitride-epoxy terminated dimethylsiloxane composite for improving the thermal conductivity
- Authors
- Kim, Kiho; Kim, Myeongjin; Hwang, Yongseon; Kim, Jooheon
- Issue Date
- Jan-2014
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Composites; Thermal conductivity; Nitrides; Surface treatment
- Citation
- CERAMICS INTERNATIONAL, v.40, no.1, pp 2047 - 2056
- Pages
- 10
- Journal Title
- CERAMICS INTERNATIONAL
- Volume
- 40
- Number
- 1
- Start Page
- 2047
- End Page
- 2056
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/12638
- DOI
- 10.1016/j.ceramint.2013.07.117
- ISSN
- 0272-8842
1873-3956
- Abstract
- The thermal conductivities of composites with an epoxy-terminated dimethylsiloxane (ETDS) matrix and boron nitride (BN) powder fillers were investigated. Two surface curing agents, 3-glycidoxypropyltrimethoxysilane (KBM-403) and 3-chloropropyltrimethoxysilane (KBM-703), were doped onto the surfaces of hydroxyl-functionalized boron nitride using a simple sol gel process to act as fillers in the thermally conducting composites. These synthesized materials were embedded in epoxy resin via a solvent casting method. The surface modification had an appreciable effect on the thermal conductivity resulting in increased thermal conductivity up to 70 wt%. The thermal conductivities of the composites containing 70 wt% BN particles treated with the KBM-403 and KBM-703 curing agents were 4.11 and 3.88 W/mK, respectively, compared to 2.92 W/mK for the composite without surface treatment. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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Collections - College of Engineering > School of Chemical Engineering and Material Science > 1. Journal Articles
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