摘要
综述了以聚合物为基体的碳纳米管复合材料导热模型,分析了复合材料热传导体系中碳纳米管(CNTs)填料的作用机制,归纳了混合规则导热模型、均质模型、有效介质模型、非均质模型和随机分散模型等,并总结了导热模型常用的数值计算方法。这些模型丰富了导热理论,可以对复合材料导热系数进行初步预测,但在数值上都存在近似或者简化处理,对碳纳米管/聚合物复合材料预测广谱性较差。未来需要对分子尺寸和界面热阻等影响导热系数的关键因素深入探究,改善数值和表征分析方法,以期为碳纳米管/聚合物复合材料的导热性能的研究和设计提供参考,为其他复合材料导热性能的研究提供借鉴。
Thermal conductivity models of polymer matrix carbon nanotube composites are reviewed.The mechanism of carbon nanotubes(CNTs)as filler in composite thermal conduction system is analyzed.The mixed rule,homogeneous,effective medium,heterogeneous,random dispersion models as well as the calculation methods commonly used in thermal conduction are summarized.These models enrich the thermal conductivity theory and can make preliminary predictions of the thermal conductivity of composites,but there are approximate or simplified treatments in terms of numerical values.The prediction of carbon nanotube polymer composites cannot be used widely.In the future,the key factors affecting thermal conductivity,such as molecular size and interfacial thermal resistance,need to be further explored,and numerical and characterization analysis methods should be improved.This review provides a reference for research and design of thermal conductivity property of carbon nanotube polymer composites and other composites.
作者
张萌萌
贾广跃
熊丽萍
何忠义
晏金灿
纪红兵
ZHANG Mengmeng;JIA Guangyue;XIONG Liping;HE Zhongyi;YAN Jincan;JI Hongbing(School of Materials Science and Engineering,East China Jiaotong University,Nanchang 330013,Jiangxi,China;Huizhou Research Institute,Sun Yat-Sen University,Huizhou 516081,Guangdong,China)
出处
《精细化工》
EI
CAS
CSCD
北大核心
2020年第6期1081-1087,1106,共8页
Fine Chemicals
基金
广东省自然科学基金(2017A030310215,20201515011102)
惠州市天鹅计划领军人才项目(20151113012123406)
惠州市科技计划重大专项(2016X0108008)。
关键词
碳纳米管
聚合物
复合材料
导热性能
导热模型
carbon nanotubes
polymer
composites
thermal conductivity property
thermal conductivity model
