Role of graphene waviness on the thermal conductivity of graphene composites

被引：67
|
作者：
Chu, Ke [1 ]
Li, Wen-sheng [1 ]
Dong, Hongfeng [1 ]
机构：
[1] Lanzhou Univ Technol, State Key Lab Gansu Adv Nonferrous Met Mat, Lanzhou 730050, Peoples R China
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2013年 / 111卷 / 01期
关键词：
Graphene; Composites; Thermal conductivity; Modeling; INTERFACE;
D O I：
10.1007/s00339-012-7497-y
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The waviness effect of graphene nanoplates (GNPs) on the thermal conductivity of GNP-based composites is investigated. Two types of wrinkled GNPs (w-GNPs) and flat GNPs (f-GNPs) are used to fabricate GNP/epoxy composites. Thermal conductivity enhancement is observed in both types of composites. However, under the same processing, f-GNPs exhibit a higher thermal conductivity enhancement than w-GNPs. We finally introduce a concept, the waviness factor, to theoretically analyze the thermal conductivity considering the waviness effect of GNPs. The theoretical predictions are found to show good agreement with experimental observations.
引用
收藏
页码：221 / 225
页数：5
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