Issue

Vol. 14 (2022)

Efficient Preconstruction of Three-Dimensional Graphene Networks for Thermally Conductive Polymer Composites

https://doi.org/10.1007/s40820-022-00878-6
Hao‑Yu Zhao
Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
Ming‑Yuan Yu
College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
Ji Liu
School of Chemistry, CRANN and AMBER, Trinity College Dublin, Dublin, Ireland
Xiaofeng Li
Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
Peng Min
College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
Zhong‑Zhen Yu
Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China

Corresponding Author: Zhong‑Zhen Yu

yuzz@mail.buct.edu.cn

Nano-Micro Letters, Vol. 14 (2022), Article Number: 129

Abstract

Electronic devices generate heat during operation and require efficient thermal management to extend the lifetime and prevent performance degradation. Featured by its exceptional thermal conductivity, graphene is an ideal functional filler for fabricating thermally conductive polymer composites to provide efficient thermal management. Extensive studies have been focusing on constructing graphene networks in polymer composites to achieve high thermal conductivities. Compared with conventional composite fabrications by directly mixing graphene with polymers, preconstruction of three-dimensional graphene networks followed by backfilling polymers represents a promising way to produce composites with higher performances, enabling high manufacturing flexibility and controllability. In this review, we first summarize the factors that affect thermal conductivity of graphene composites and strategies for fabricating highly thermally conductive graphene/polymer composites. Subsequently, we give the reasoning behind using preconstructed three-dimensional graphene networks for fabricating thermally conductive polymer composites and highlight their potential applications. Finally, our insight into the existing bottlenecks and opportunities is provided for developing preconstructed porous architectures of graphene and their thermally conductive composites.


Highlights:


1 Fundamental principles for designing high-performance thermally conductive graphene-based polymer composites are reviewed in detail.
2 The reasoning behind using the preconstructed graphene 3D networks for fabricating thermally conductive composites and recent progress are discussed in-depth.
3 Insight into the existing bottlenecks and opportunities in developing preconstructed 3D networks of graphene and their thermally conductive composites is also presented.

Keywords

Graphene networks Thermal conductivity Thermal interface materials Phase change composites Anisotropic aerogels
Zhao, Hao‑Yu, Ming‑Yuan Yu, Ji Liu, Xiaofeng Li, Peng Min, and Zhong‑Zhen Yu. 2022. “Efficient Preconstruction of Three-Dimensional Graphene Networks for Thermally Conductive Polymer Composites”. Nano-Micro Letters 14 (June):129. https://doi.org/10.1007/s40820-022-00878-6.
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