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

Richao Zhang | Zendy; Dan Sun | Zendy; A. Lu | Zendy; Sadegh Askari | Zendy; Manuel MacíasMontero | Zendy; Paul Joseph | Zendy; Dorian Dixon | Zendy; Kostya Ostrikov | Zendy; Paul Maguire | Zendy; Davide Mariotti | Zendy

Open Access

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

Author(s) -

Richao Zhang,

Dan Sun,

A. Lu,

Sadegh Askari,

Manuel MacíasMontero,

Paul Joseph,

Dorian Dixon,

Kostya Ostrikov,

Paul Maguire,

Davide Mariotti

Publication year - 2016

Publication title -

acs applied materials and interfaces

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.535

H-Index - 228

eISSN - 1944-8252

pISSN - 1944-8244

DOI - 10.1021/acsami.6b01531

Subject(s) - materials science , microplasma , boron nitride , nanocomposite , nanotechnology , polymer , thermal , boron , polymer nanocomposite , chemical engineering , plasma , composite material , organic chemistry , chemistry , physics , quantum mechanics , engineering , meteorology

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 mm(2) 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.

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