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Large-surface-area BN nanosheets and their utilization in polymeric composites with improved thermal and dielectric properties

Xuebin Wang12*, Amir Pakdel1, Jun Zhang1, Qunhong Weng1, Tianyou Zhai1, Chunyi Zhi13*, Dmitri Golberg1* and Yoshio Bando12

Author affiliations

1 International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan

2 Department of Nano-Science and Nano-Engineering, Faculty of Science and Engineering, Waseda University, Okubo 3-4-1, Shinjuku-ku, Tokyo, 169-8555, Japan

3 Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China

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Citation and License

Nanoscale Research Letters 2012, 7:662  doi:10.1186/1556-276X-7-662

Published: 30 November 2012


High-throughput few-layered BN nanosheets have been synthesized through a facile chemical blowing route. They possess large lateral dimensions and high surface area, which are beneficial to fabricate effectively reinforced polymeric composites. The demonstrated composites made of polymethyl methacrylate and BN nanosheets revealed excellent thermal stability, 2.5-fold improved dielectric constant, and 17-fold enhanced thermal conductivity. The results indicate multifunctional practical applications of such polymeric composites in many specific fields, such as thermoconductive insulating long-lifetime packaging for electrical circuits.

BN nanosheet; Polymeric composite; Thermal conductivity; Dielectric constant