石墨烯
材料科学
导电体
复合材料
热导率
复合数
填料(材料)
聚合物
石墨烯泡沫
热的
纳米技术
氧化石墨烯纸
物理
气象学
作者
Hongbin Zhao,Ming-Yuan Yu,Ji Liu,Xiaofeng Li,Min Peng,Zhong‐Zhen Yu
标识
DOI:10.1007/s40820-022-00878-6
摘要
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.
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