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BN nanosheet/polymer films with highly anisotropic thermal conductivity for thermal management applications.

journal contribution
posted on 01.11.2017, 00:00 authored by Y Wu, Y Xue, Alex QinAlex Qin, Dan LiuDan Liu, X Wang, X Hu, Jingliang LiJingliang Li, Xungai WangXungai Wang, Y Bando, D Golberg, Ying (Ian) ChenYing (Ian) Chen, Y Gogotsi, Weiwei LeiWeiwei Lei
The development of advanced thermal transport materials is a global challenge. Two-dimensional nanomaterials have been demonstrated as promising candidates for thermal management applications. Here, we report a boron nitride (BN) nanosheet/polymer composite film with excellent flexibility and toughness prepared by vacuum-assisted filtration. The mechanical performance of the composite film is highly flexible and robust. It is noteworthy that the film exhibits highly anisotropic properties, with superior in-plane thermal conductivity of around 200 W m-1 K-1 and extremely low through-plane thermal conductivity of 1.0 W m-1 K-1, making this material an excellent candidate for thermal management in electronics. Importantly, the composite film shows fire-resistant properties. The newly developed unconventional flexible, tough, and refractory BN films are also promising for heat dissipation in a variety of applications.



ACS Applied Materials and Interfaces


American Chemical Society


Washington, D.C.







Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2017, American Chemical Society