Microplasma Processed Ultrathin Boron Nitride Nanosheets for Polymer Nanocomposites with Enhanced Thermal Transport Performance.
Microplasma Processed Ultrathin Boron Nitride Nanosheets for Polymer Nanocomposites with Enhanced Thermal Transport Performance.
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DOI：
10.1021/acsami.6b01531
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发表时间：
2016-05
影响因子：
9.5
通讯作者：
Richao Zhang;D. Sun;Ai Lu;S. Askari;M. Macias‐Montero;P. Joseph;D. Dixon;K. Ostrikov;P. Maguire
中科院分区：
文献类型：
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作者：
Richao Zhang;D. Sun;Ai Lu;S. Askari;M. Macias‐Montero;P. Joseph;D. Dixon;K. Ostrikov;P. Maguire
这篇研究文章报道了通过室温大气压直流微等离子体处理增强聚乙烯醇中含有六方氮化硼的纳米复合材料的热传输性能。结果表明，微等离子体处理导致六方氮化硼在异丙醇中剥离，使堆叠的数量从>30层减少到几层或单层。所得纳米复合材料的热扩散率达到8.5 mm（2）s（-1），比空白聚乙烯醇大50倍，是含有未经等离子体处理的氮化硼纳米片的纳米复合材料的两倍。从TEM分析，我们观察到等离子体处理后纳米片的聚集少得多，沿着有无定形碳界面层的指示，这可能有助于氮化硼纳米片在所得等离子体处理的胶体中的稳定分散。
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.