摘要
电气、电子装备中器件的微型化、高功率化发展使得散热成为关键,以氮化硼(boron nitride,BN)为填料制备的导热复合材料是改善这一问题的有效方式。为此在阐述BN结构特点的基础上,从单一填料处理包括BN的剥离以及BN表面改性、复合填料协同作用、导热网络的构建这3个角度出发,分析了提升BN改性聚合物材料导热性能的途径。最后,对当前BN改性聚合物导热复合材料研究存在的问题进行总结,并对导热复合材料未来发展方向做出展望,以期望实现有限空间内的高效散热。
With the development of miniaturization and high-power in electrical and electronic equipment,heat dissipation becomes the key issue.Thermal conductive composites with boron nitride(BN)as filler are an effective way to improve this problem.This paper analyzes the ways to improve the thermal conductive of BN modified polymer-based composites from three aspects,namely,single filler treatment(including the exfoliation of BN and surface modified BN),synergistic effect of composite filler,and construction of thermal conductive network,starting from the structural characteristics of BN.Finally,the problems existing in the current research on BN modified polymer-based thermal conductive composites are summarized,and the prospects in future development direction of thermal conductive composites is put forward,aiming to realize the high heat dissipation efficiency in limited space.
作者
查俊伟
李鑫
万宝全
董晓迪
郑明胜
ZHA Junwei;LI Xin;WAN Baoquan;DONG Xiaodi;ZHENG Mingsheng(Beijing Advanced Innovation Center for Materials Genome Engineering,School of Chemistry and Biological Engineering,University of Science and Technology Beijing,Beijing 100083,China)
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2023年第9期3625-3639,共15页
High Voltage Engineering
基金
国家自然科学基金(51977114)。
关键词
氮化硼
聚合物
复合材料
表面改性
导热性能
boron nitride
polymer
composite
surface modification
thermal conductivity
