期刊
CHEMICAL ENGINEERING JOURNAL
卷 437, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2022.135404
关键词
Multi-orientation; Heat conduction unit; Strain-inducing alignment; Thermal conductivity; Cellulose; Boron nitride
资金
- National Natural Science Foundation of China [51703122, 52073168]
In this work, a multi-orientation structure in cellulose/BNNSs composite was fabricated, showing superior thermal conductivity and mechanical properties, with great application potential in the field of thermal management of electronic devices.
In the thermal management application, polymeric composites with highly thermal conductivity are developmentally limited. It is mainly caused by the unsatisfactory situation of effective structure research on thermal conductivity enhancement in polymeric composites. In this work, a multi-orientation structure in cellulose/ BNNSs (CBN) composite with alignment of cellulose nanofibers and BN nanofillers was fabricated by a tunable orientation strategy strain-inducing and post-pressing method. The as-prepared CBN20-3 films (with 20 wt% BN content and draw ratio of 3) exhibit superior thermal conductivity (40.23 W center dot m(-1)center dot K-1), excellent mechanical properties (tensile strength up to 188.71 MPa), and thermal transfer capability (Delta T = 19.9 degrees C). The obtained CBN films exhibited a stepwise reinforced thermal conductivity and mechanical performance, and a synergistic orientation effect of cellulose after combined with BN nanosheets was observed. We believe that the multi orientation strategy is generalizable in multifunctional composites, and the composite has great application potential in the field of thermal management of electronic devices.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据