Enhanced Thermal Conductivity of Bioinspired Nanofibrillated Cellulose Hybrid Films Based on Graphene Sheets and Nanodiamonds

被引:83
作者
Cui, Siqi [1 ,2 ]
Song, Na [1 ]
Shi, Liyi [1 ]
Ding, Peng [1 ,2 ]
机构
[1] Shanghai Univ, Res Ctr Nanosci & Nanotechnol, Shanghai 200444, Peoples R China
[2] Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China
基金
上海市自然科学基金; 中国国家自然科学基金;
关键词
graphene sheets; nanodiamond; nanofibrillated cellulose; hierarchical structure; thermal conductivity; mechanical property; POLY(VINYL ALCOHOL) NANOCOMPOSITES; BORON-NITRIDE; MECHANICAL-PROPERTIES; POLYMER COMPOSITES; NANOSHEETS; PROPERTY; MANAGEMENT; OXIDE; ORIENTATION; FRAMEWORK;
D O I
10.1021/acssuschemeng.0c00420
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Polymer materials with high thermal conductivities play an important role in the development of next-generation electronics. In this work, high thermally conductive nanofibrillated cellulose (NFC) hybrid films based on nanodiamonds (NDs) and graphene sheets (GSs) were prepared by a facile vacuum-filtration self-assembly process. Inspired by the structure of nacre, zero-dimensional NDs, two-dimensional GSs, and one-dimensional NFC were used to build hierarchical structures, which lead to excellent mechanical properties of the hybrid films. More importantly, an efficient thermally conductive pathway, involving NDs and GSs, endows the hybrid films with a much higher in-plane thermal conductivity. At a filler content of 10 wt %, the in-plane thermal conductivity of the f-C/ND/G hybrid film could reach 14.35 W.m(-1).K-1, which is at a high level compared with other published studies. This hybrid film exhibits significant thermal conductivity combined with excellent mechanical properties that can be applied to portable electronic equipment as a lateral heat spreader.
引用
收藏
页码:6363 / 6370
页数:8
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