Lightweight nanofibrous EMI shielding nanowebs prepared by electrospinning and metallization

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• 作者：Hae-Rim Kim^a ; Kazushige Fujimori^a ; Byoung-Suhk Kim^b ; ^{kbsuhk@yahoo.com} ; ^{kbsuhk@jbnu.co.kr} ; Ick-Soo Kim^a ; ^{kim@shinshu-u.ac.jp}
• 关键词：A. Fibers ; A. Functional composites ; A. Structural composites ; E. Electro-spinning
• 刊名：Composites Science and Technology
• 出版年：2012
• 出版时间：28 June, 2012
• 年：2012
• 卷：72
• 期：11
• 页码：1233-1239
• 全文大小：793 K

文摘

The metal-deposited poly(vinyl alcohol) (PVA) composite nanofibrous mats were fabricated by electrospinning and metal-deposition methods for electromagnetic interference (EMI) shielding applications. The metal-deposited nanofiber mats prepared with various metals (Cu, Ni, Ag), their different thicknesses, and different metal deposition systems composed of Cu and Ni were used for EMI shielding measurement. For the EMI SE measurement, a near-field antenna measurement system was used. The measurement of EMI SE was carried out at the frequency range from 0.5 to 18 GHz, and the electromagnetic parameters were measured. The experimental results showed that absorption was the major shielding mechanism and reflection was the secondary shielding mechanism. The effect of unique porous structure of the metal-deposited composite nanofibrous mats was also discussed.