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题名: Studies on the Electromagnetic Interference Shielding Effectiveness of Metallized PVAc-AgNO(3) Films
作者: Chueh-Jung Huang
贡献者: Department of Chemical Engineering
关键词: EMI
Metal Chelate
Conductivity
Surface Resistivity
PVAc
日期: 2001-09
上传时间: 2008-08-20T05:35:27Z
摘要: In this study, the electromagnetic interference (EMI) Shielding effectiveness (SE) and the characterization of conductive PVAc-AgNO(3) chelate films are investigated. By adding metal salts AgNO(3) into PVAc matrix, metal chelate polymer with Ag+ ions attached to the function groups of PVAc as the complex structure were prepared. Then the films of the metal chelate polymer were cast and reduced, the silver atoms generated and implanted on the surfaces of the metal chelate films. The SE values of the conductive metal chelate films were measured by far field transmission line method, with frequency ranging from l50KHz-1GHz.

The best SE (30dB) was reached by AgNO(3) concentration (w%=15) of the metal chelate films (Rs=5Ω/cm^2 ), a higher SE (35dB) was even attained by double layers films (Rs=IΩ/cm^2) with AgNO(3) concentration w%=30. As confirmed by x-ray and SEM analyses, the conducting network that formed by silver atoms on the surfaces of the reduced films was the dominant path for electron propagation.
關聯: 修平學報 3, 199-208
显示于类别:[能源與材料科技系] 期刊論文

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