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Dispersion of high-quality boron nitride nanosheets in polyethylene for nanocomposites of superior thermal transport properties

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Abstract

High-quality boron nitride nanosheets (BNNs) characterized by large aspect ratios and less defective surfaces and structures are in demand for thermal management and other uses that exploit the uniquely advantageous properties of boron nitride, such as being highly thermally conductive yet electrically insulating and extreme chemical and thermal stabilities. In this study, an ammonia-assisted exfoliation processing method was developed and applied to the preparation of high-quality BNNs. As a demonstration of the excellent potential of these nanomaterials, the BNNs were dispersed in polyethylene polymers for nanocomposite films of superior thermal transport performance at levels significantly beyond the state of the art in the literature. Effects of crosslinking in the nanocomposite film structure on thermal transport were also explored and favorable outcomes were achieved.

Graphical abstract: Dispersion of high-quality boron nitride nanosheets in polyethylene for nanocomposites of superior thermal transport properties

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Article information


Submitted
06 Mar 2020
Accepted
08 Apr 2020
First published
08 Apr 2020

This article is Open Access

Nanoscale Adv., 2020, Advance Article
Article type
Paper

Dispersion of high-quality boron nitride nanosheets in polyethylene for nanocomposites of superior thermal transport properties

Z. Wang, P. Priego, M. J. Meziani, K. Wirth, S. Bhattacharya, A. Rao, P. Wang and Y. Sun, Nanoscale Adv., 2020, Advance Article , DOI: 10.1039/D0NA00190B

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