Reflection and absorption contributions to the electromagnetic interference shielding of single-walled carbon nanotube/polyurethane composites

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• 作者：Zunfeng Liu ; Gang Bai ; Yi Huang ; Yanfeng Ma ; Feng Du ; Feifei Li ; Tianying Guo ; Yongsheng Chen
• 刊名：Carbon
• 出版年：2007
• 期刊代码：10_00086223
• 类别：ms
• 出版时间：April 2007
• 卷：45
• 期：4
• 页码：821-827
• 文件大小：582 K

摘要

The electromagnetic interference (EMI) shielding of well dispersed single-walled carbon nanotube (SWCNT)/polyurethane composites was studied and the results show that they can be used as effective and lightweight shielding materials. The EMI shielding of the composite shows a reflection-dominant mechanism, while a shift from reflection to absorption was observed with increased SWCNT loading and frequency. This is explained using EMI shielding theory and the intrinsic properties of the components.