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《Journal of Functional Materials》 2008-05
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The effect of character and volume of polyaniline on the shielding efficiency of electromagnetic shielding composites

WANG Jun1,ZHU Guo-hui1,2,MAO Wei-min1(1.School of Material Science and Engineering,University of Science and Technology,Beijing 100083,China;2.School of Material Science and Engineering,Anhui University of Technology,Maanshan 243002,China)  
Effect of character and volume franction of polyaniline in metal powder/polyaniline composite on microstructure and shielding efficiency(SE) has been studied.The contribution of polyaniline on SE has been discussed in terms of electromagnetic performance and the contribution of complex effect on the SE has also been studied.The results showed that the polyaniline was in favor of increasing the SE in high frequency,but the SE in the low frequency deduced compared with the pure metal powder materials of which the reason may be the asymmetric distributing aroused by polyaniline.Furthermore,the experimental results showed that the liquid and dried powder polyaniline gave different shielding efficiency in metal-powder/polyaniline composites,which was analyzed based on microstructure of the composites.
【Fund】: 国家高技术研究发展计划(863计划)资助项目(2006AA03Z466)
【CateGory Index】: TB34
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