结构参数对阵列式碳纳米管吸波性能的影响  

Influence of Structural Parameters on the Absorption Properties of Aligned Array Carbon Nanotubes

作　　者：陈明东[1,2] 揭晓华[1] 张海燕[1] 

机构地区：[1]广东工业大学材料与能源学院,广州510006 [2]华南理工大学物理教学实验中心,广州510006

出　　处：《人工晶体学报》2013年第11期2334-2339,2345,共7页Journal of Synthetic Crystals

基　　金：广东省科技计划项目(2009B090300017);广东省国际合作项目(2011B050300017)

摘　　要：基于传输线理论和碳纳米管的等效电路模型,建立了阵列式碳纳米管吸波涂层的传输线模型,推导出碳纳米管的结构参数与涂层反射率的关系式,并用MATLAB作出了反射率与碳纳米管结构参数间的曲线图。通过反射率与涂层厚度关系的曲线分析,得出了计算结果与文献的实验结果能较好吻合的结论;通过反射率曲线图的研究,得到了涂层厚度和碳管间距是控制吸收强度的主要参量,而碳管长度和碳管管径是控制吸收峰值位置的主要参量等结论。Based on the theory of transmission line and the equivalent circuit of distributed parameters model of carbon nanotubes, the equivalent transmission line model of aligned array carbon nanotubes （ACNTs） has been set up, and the relational expression of the coating reflectivity about the structure parameters of c^rbon nanotubes were derived. The graph between the reflectivity and the structure parameter of carbon nanotube has been drawn by MATLAB software. Through the analysis of curve between the reflection rate and the absorbing coating thickness, it was found that the calculating results in this paper could match with the results of references. The reflection rate graph result showed that coating thickness and the distance between the carbon nanotubes are the main parameters to control the absorbing intensity of the coating, and the length and the diameter of the carbon nanotubes are the main parameters to control the microwave absorbing peak of the coating.

关 键 词：碳纳米管 等效电路 反射率 吸波性能 

分 类 号：TB332[一般工业技术—材料科学与工程] O451[理学—无线电物理]