热导率测量在石墨烯纳米流体中的应用  

Application of thermal conductivity measurement in graphene nanofluid

作　　者：刘峥[1,2] 王荣霞 王群[1,2] 刘文俊 王勤生 LIU Zheng;WANG Rong-xia;WANG Qun;LIU Wen-jun;WANG Qin-sheng(Special Equipment Safety Supervision and Inspection Institute of Jiangsu Province,Wuxi 214174,China;National Graphene Products Quality Inspection and Testing Center(Jiangsu),Wuxi 214174,China)

机构地区：[1]江苏省特种设备安全监督检验研究院,江苏无锡214174 [2]国家石墨烯产品质量检验检测中心(江苏),江苏无锡214174

出　　处：《应用化工》2021年第S02期285-288,共4页Applied Chemical Industry

基　　金：国家重点研发计划(2018YFF0216004);江苏省特检院科技项目(KJ(Y)2020035,KJ(Y)2017015,KJ(Y)2017017)。

摘　　要：热导率是纳米流体研究应用的重要参数,限于流体容易产生热对流和纳米颗粒的分散稳定性,传统方法难以实现纳米流体热导率的准确测量。石墨烯在厚度方向上的尺寸是纳米级的,其特殊的二维共轭结构使其具有超出传统材料的优异性能,其悬浮测量热导率高达5 300 W/mK,以鳞片石墨为原料可以非常容易剥离制备石墨烯纳米流体,最近很多相关工作都研究了石墨烯的添加对流体热导率的影响,也使用了一些方法进行测量。介绍了热线法、瞬态平面热源法、激光闪射法、3ω法等方法及其在石墨烯纳米流体中的应用。对于基于新型纳米材料及二维材料的纳米流体热导率的测量有一定的意义。Thermal conductivity is an important parameter for the research and application of nanofluids.Limited to the fact that the fluid is prone to thermal convection and the dispersion stability of nanoparticles,it is difficult to accurately measure the thermal conductivity of nanofluids with traditional methods.The size of graphene in the thickness direction is nano-scale.Its special two-dimensional conjugated structure makes it have excellent performance beyond traditional materials.Its measured thermal conductivity is as high as 5300 W/mK.It can be very easy to exfoliate flake graphite to prepare graphene nanofluids.Recently,many related works have studied the influence of the addition of graphene on the thermal conductivity of the fluid,and some methods have been used for measurement.This article introduces the hot wire method,transient planar heat source method,laser flash method,3 method and other methods and their applications in graphene nanofluids.It has certain significance for the measurement of the thermal conductivity of nanofluids based on new nanomaterials and two-dimensional materials.

关 键 词：纳米流体 石墨烯 热导率 测量方法 

分 类 号：TQ021.3[化学工程] O551.1[理学—热学与物质分子运动论] TE09[理学—物理]