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Microplasma Processed Ultrathin Boron Nitride Nanosheets for Polymer Nanocomposites with Enhanced Thermal Transport Performance

Zhang, Ri-Chao, Sun, Dan, Lu, Ai, Askari, Sadegh, Macias-Montero, Manuel, Joseph, Paul, Dixon, D, Ostrikov, Kostya, Maguire, P and Mariotti, D (2016) Microplasma Processed Ultrathin Boron Nitride Nanosheets for Polymer Nanocomposites with Enhanced Thermal Transport Performance. ACS Applied Materials & Interfaces, 8 (21). pp. 13567-13572. [Journal article]

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URL: http://dx.doi.org/10.1021/acsami.6b01531

DOI: 10.1021/acsami.6b01531

Abstract

This Research Article reports on the enhancement of the thermal transport properties of nanocomposite materials containing hexagonal boron nitride in poly(vinyl alcohol) through room-temperature atmospheric pressure direct-current microplasma processing. Results show that the microplasma treatment leads to exfoliation of the hexagonal boron nitride in isopropyl alcohol, reducing the number of stacks from >30 to a few or single layers. The thermal diffusivity of the resulting nanocomposites reaches 8.5 mm2 s–1, 50 times greater than blank poly(vinyl alcohol) and twice that of nanocomposites containing nonplasma treated boron nitride nanosheets. From TEM analysis, we observe much less aggregation of the nanosheets after plasma processing along with indications of an amorphous carbon interfacial layer, which may contribute to stable dispersion of boron nitride nanosheets in the resulting plasma treated colloids.

Item Type:Journal article
Keywords:boron nitride, microplasma, thermal transport, exfoliation, phonon, polymer nanocomposites
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:34860
Deposited By: Professor Davide Mariotti
Deposited On:15 Jun 2016 09:32
Last Modified:08 Sep 2017 14:12

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