Thermal Conductive and Mechanical Properties of Polymeric Composites Based on Solution-Exfoliated Boron Nitride and Graphene Nanosheets: A Morphology-Promoted Synergistic Effect.
In this work, we reported a synergistic effect of boron nitride (BN) with graphene nanosheets on the enhancement of thermal conductive and mechanical properties of polymeric composites. Here, few layered BN (s-BN) and graphene (s-GH) were used and obtained by liquid exfoliation method. The polystyrene (PS) and polyamide 6 (PA) composites were obtained via solution blending method and subsequently hot-pressing. The experimental results suggested that the thermal conductivity (TC) of the PS and PA composites increases with additional introduction of s-BN. For example, compared with the composites containing 20 wt % s-GH, additional introduction of only 1.5 wt % s-BN could increase the TC up to 38 and 34% in polystyrene (PS) and polyamide 6 (PA) matrix, respectively. Meanwhile, the mechanical properties of the composites were synchronously enhanced. It was found that s-BN filled in the interspaces of s-GH sheets and formed s-BN/s-GH stacked structure, which were helpful for the synchronously improving TC and mechanical properties of the polymeric materials.
Research Center of Nanoscience and Nanotechnology, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China.|Department of Polymer Materials, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China.
Xieliang
X
Cui
Research Center of Nanoscience and Nanotechnology, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China.
Peng
P
Ding
Research Center of Nanoscience and Nanotechnology, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China.
Nan
N
Zhuang
Department of Polymer Materials, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China.
Liyi
L
Shi
Research Center of Nanoscience and Nanotechnology, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China.
Na
N
Song
Research Center of Nanoscience and Nanotechnology, Shanghai University , 99 Shangda Road, Shanghai 200444, People's Republic of China.
Shengfu
S
Tang
boron nitride; graphene; polymer; solution-exfoliated; thermal conductivity