Preparation and Properties of High-Conductive Graphene Nanosheets Reinforced Epoxy Composites. (September 2020)

• Record Type: Journal Article
• Authors: Zhang, Haiyun; Wang, Danyong; Liu, Juncong; Wei, Huazhen; Zhang, Jianqin; Liu, Fangbiao; Xu, Jingli; Liu, Aiyun; Wang, Ronghui; Jia, Huamin; Guo, Jianfen; Li, Fuqiang; Li, Shuhu; Qin, Zhenming; Liu, Yadong
• Is Part Of: Journal of physics. Volume 1637(2020)
• Publication Date: 2020-09
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1637/1/012029
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: Due to the growing needs of thermal management in modern electronics, epoxy-based composites are increasingly demanded in heat dissipating materials. A simple preparation of composites with high thermalconductivity was developed through the graphenenanosheetshomogeneously dispersed in theepoxy matrix. A high thermal conductivityof 0.4843W/mK ( increased by184% over that of pure epoxy) could be obtained for the compositeswith a filler content of 5wt.%. It was proved that high aspect ratio of GNPs are critical issues of theconstitution of a special interface region between the GNPs and epoxy matrix of the composites.The more than mere additive effect on the through-thickness thermal conductivity suggests synergistic physical interactions between graphenenano sheets leading to further enhancement in the through-thickness thermal conductivity. Thus, the graphene-reinforced composites are promising for usageas an efficient heat spreader for heat dissipation applications.