碳化硅/多壁碳纳米管复合材料的制备及其吸波性能研究  

Study on Synthesis of SiC/MWCNTs Nanocomposite and Its Electromagnetic Wave Absorption Properties

作　　者：梁英杰 吉小利[1] 袁浩泽 马倩倩 LIANG Yingjie;JI Xiaoli;YUAN Haoze;MA Qianqian(School of Chemical Engineering,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学化学工程学院,安徽淮南232001

出　　处：《河南化工》2022年第8期17-20,共4页Henan Chemical Industry

基　　金：国家自然科学基金项目(51707003);安徽理工大学2015年校引进人才基金资助项目(11470)。

摘　　要：以MWCNTs与SiC为原料,分别对两种物质进行修饰,然后将修饰改性后的两种材料采用水热法进行复合,得到了SiC/MWCNTs纳米复合材料。通过SEM、XRD和FTIR等手段研究了SiC/MWCNTs的形貌和结构,并用矢量网络分析仪测量了其电磁参数。对于通过水热法制备的SiC/MWCNTs纳米复合材料,在3.21 GHz、匹配厚度为6 mm的条件下,最小反射损耗可达-36.91 dB。相对于物理混合,采用水热反应制得的SiC/MWCNTs复合材料,其吸波性能更好。With MWCNTs and SiC as raw materials,the two substances are modified respectively,and then the modified two materials are compounded by hydrothermal method to obtain SiC/MWCNTs nanocomposites.The morphology and structure of SiC/MWCNTs are studied by SEM,XRD and FTIR,and the electromagnetic parameters are measured by vector network analyzer.For SiC/MWCNTs nanocomposites prepared by hydrothermal method,the minimum reflection loss can reach-36.91 dB at 3.21 GHz with a matching thickness of 6 mm.Compared with physical mixing,SiC/MWCNTs composites prepared by hydrothermal reaction have better microwave absorbing properties.

关 键 词：碳化硅 碳纳米管 水热法 表面改性 吸波性能 

分 类 号：TB332[一般工业技术—材料科学与工程] TB383