Electromagnetic interference shielding characteristics and shielding effectiveness of polyaniline-coated films
Electromagnetic interference shielding characteristics and shielding effectiveness of polyaniline-coated films
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DOI：
10.1016/j.tsf.2011.01.093
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发表时间：
2011-03-31
期刊：
影响因子：
2.1
通讯作者：
Kim, H. K.
中科院分区：
文献类型：
--
作者：
Kim, B. R.;Lee, H. K.;Kim, H. K.
本研究旨在研究聚苯胺(PANI)涂层薄膜的电磁干扰(EMI)屏蔽特性和屏蔽效能(SE)。以聚对苯二甲酸乙二醇酯为基膜，用二环苯磺酸与聚苯二甲酸二异氰酸酯反应，制得了祖母绿盐自支膜。为了研究聚苯胺薄膜的电磁特性，采用四探针法测量了薄膜的电阻率。此外，还用两种不同的方法测量了PANI涂层薄膜的电磁屏蔽效率：法兰同轴屏蔽效能测试和在配有真实条件下电磁屏蔽测试仪器的箱式试验室上的屏蔽效能测试。还将实验测得的总体SE与理论计算的SE近似值进行了比较。本研究显示了利用聚苯胺涂层薄膜作为电磁屏蔽/吸收材料的可能性。(C)2011爱思唯尔B.V.保留所有权利。
The study aims to investigate the electromagnetic interference (EMI) shielding characteristics and shielding effectiveness (SE) of polyaniline (PANI)-coated films. Free-standing films of emeraldine salt were obtained by PANI-emeraldine base with dode-cylbenzensulfonic acid on a polyethylene terephthalate film. The four-point probe method was employed to measure the electrical resistivity for investigating the electromagnetic characteristics of PANI-coated films. In addition, the SE of the PANI-coated films was measured in two different ways: a flanged coaxial shielding effectiveness test and a shielding effectiveness on the testbed having a box-type chamber equipped with instruments for electromagnetic shielding testing under real conditions. The overall SE measured from experiments was also compared with the approximate SE value calculated from a theoretical method. The present study has shown the possibility of utilizing PANI-coated films as EMI shielding/absorption materials. (C) 2011 Elsevier B.V. All rights reserved.