Electromagnetic interference shielding of carbon nanotube macrofilms

被引:97
作者
Wu, Zi Ping [1 ,2 ]
Li, Ming Mao [1 ]
Hu, Ying Yan
Li, Ye Sheng [1 ]
Wang, Zhi Xiang [1 ]
Yin, Yan Hong [1 ]
Chen, Yi Sheng [1 ]
Zhou, Xiao [1 ]
机构
[1] Jiangxi Univ Sci & Technol, Sch Mat & Chem Engn, Minist Educ, Engn Res Ctr High Efficiency Dev & Applicat Techn, Ganzhou 341000, Jiangxi, Peoples R China
[2] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai 200240, Peoples R China
关键词
Carbon nanotubes; Thin films; Electrical conductivity; Magnetic properties; MICROWAVE-ABSORPTION; COMPOSITES;
D O I
10.1016/j.scriptamat.2011.01.002
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Electromagnetic interference (EMI) shielding effectiveness (SE) of carbon nanotube (CNT) macro-films with large-area was measured. The results show EMI SE of 61-67 dB has been achieved by the macro-film with only similar to 4 mu m thick. It is much higher than other shielding materials with light weight. Morphological analysis reveals conductive interconnected CNTs and iron nano-particles lead to a high EMI SE. Considering the flexibility, thickness, and negligible weight (similar to 0.1 g cm(-3)) of the macro-film, it exhibits an excellent competitiveness for EMI shielding materials. Crown Copyright (C) 2011 Published by Elsevier Ltd. on behalf of Acta Materialia Inc. All rights reserved.
引用
收藏
页码:809 / 812
页数:4
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