Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5439462 | Composites Part A: Applied Science and Manufacturing | 2017 | 35 Pages |
Abstract
Polystyrene-wrapped boron nitride/commercial polystyrene (BN@PS/CPS) composites with high thermal conductivity were fabricated by a novel approach. The route included two steps, BN@PS core-shell structured fillers were prepared by using modified BN and styrene (St) as the raw materials via suspension polymerization, and then the BN@PS were kneaded with the CPS by mechanically mixed method. The composite achieves a high thermal conductivity of 0.692Â W/mK containing 30Â wt% BN@PS (â¼15.9Â wt% BN), which is 3.72 times higher than that of pure CPS of â¼0.186Â W/mK and 1.78 times higher than that BN/CPS blend composite with at the same BN loading of 0.332Â W/mK. Compared with traditional routes, the novel preparation process requires less BN fillers when improving the same thermal conductivity. Importantly, other polymers can also encapsulate BN through this strategy, which paves a new way for preparing thermally conductive polymer-matrix composites.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Weifang Han, Yufeng Bai, Shicai Liu, Chunhua Ge, Lixia Wang, Zhiyan Ma, Yuxuan Yang, Xiangdong Zhang,