Microplasma processed ultrathin boron nitride nanosheets for polymer nanocomposites with enhanced thermal transport performance

Ri Chao Zhang; Dan Sun; Ai Lu; Sadegh Askari; Manuel Macias-Montero; Paul Joseph; Dorian Dixon; Kostya Ostrikov; Paul Maguire; Davide Mariotti

doi:10.1021/acsami.6b01531

Microplasma processed ultrathin boron nitride nanosheets for polymer nanocomposites with enhanced thermal transport performance

Ri Chao Zhang^*, Dan Sun, Ai Lu, Sadegh Askari, Manuel Macias-Montero, Paul Joseph, Dorian Dixon, Kostya Ostrikov, Paul Maguire, Davide Mariotti

^*Corresponding author for this work

Design, Manufacturing And Engineering Management

Research output: Contribution to journal › Article › peer-review

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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.

Original language	English
Pages (from-to)	13567-13572
Number of pages	6
Journal	ACS Applied Materials and Interfaces
Volume	8
Issue number	21
Early online date	6 May 2016
DOIs	https://doi.org/10.1021/acsami.6b01531
Publication status	Published - 1 Jun 2016

Keywords

boron nitride
exfoliation
microplasma
phonon
polymer nanocomposites
thermal transport

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Cite this

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title = "Microplasma processed ultrathin boron nitride nanosheets for polymer nanocomposites with enhanced thermal transport performance",

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.",

keywords = "boron nitride, exfoliation, microplasma, phonon, polymer nanocomposites, thermal transport",

author = "Zhang, {Ri Chao} and Dan Sun and Ai Lu and Sadegh Askari and Manuel Macias-Montero and Paul Joseph and Dorian Dixon and Kostya Ostrikov and Paul Maguire and Davide Mariotti",

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T1 - Microplasma processed ultrathin boron nitride nanosheets for polymer nanocomposites with enhanced thermal transport performance

AU - Zhang, Ri Chao

AU - Sun, Dan

AU - Lu, Ai

AU - Askari, Sadegh

AU - Macias-Montero, Manuel

AU - Joseph, Paul

AU - Dixon, Dorian

AU - Ostrikov, Kostya

AU - Maguire, Paul

AU - Mariotti, Davide

PY - 2016/6/1

Y1 - 2016/6/1

N2 - 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.

AB - 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.

KW - boron nitride

KW - exfoliation

KW - microplasma

KW - phonon

KW - polymer nanocomposites

KW - thermal transport

U2 - 10.1021/acsami.6b01531

DO - 10.1021/acsami.6b01531

M3 - Article

AN - SCOPUS:84973325973

SN - 1944-8244

VL - 8

SP - 13567

EP - 13572

JO - ACS Applied Materials and Interfaces

JF - ACS Applied Materials and Interfaces

IS - 21

ER -

Microplasma processed ultrathin boron nitride nanosheets for polymer nanocomposites with enhanced thermal transport performance

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Keywords

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