Absorption and shielding effect of electromagnetic wave at GHz frequency by multi-walled carbon nanotube/polymer composites

被引：8

作者：

Umishita, Kazunori ^{[1
]}

Okubo, Tsuyoshi ^{[1
]}

Takuya, Nakamura ^{[2
]}

Hashimoto, Osamu ^{[2
]}

机构：

[1] Hodogaya Chem Co Ltd, Res & Dev Dept, Tsukuba Res Lab, 45 Miyukigaoka, Ibaraki 3050841, Japan

[2] Aoyama Gakuin Univ, Dept Elect Engn & Elect, Coll Sci & Engn, Kanagawa 2298558, Japan

来源：

2006 EUROPEAN CONFERENCE ON WIRELESS TECHNOLOGIES | 2006年

关键词：

carbon nanotube; MWCNT; polymer composites; electromagnetic wave absorber; EM shielding effect;

D O I：

10.1109/ECWT.2006.280494

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

The complex permittivity at 5.8 GHz of the composites of epoxy resin with multi-walled carbon nanotubes (MWCNTs) with their 20-70 nm diameters and 10-20 mu m lengths at the concentration of 0.1-0.5% in weight was measured using a waveguide in order to develop the electromagnetic wave absorber (EMU) in the GHz frequency region. The EM absorbing efficiency was the highest at the MWCNT concentration of 0.2%, although the electric resistivity of the composite decreased and the electromagnetic interference shielding efficiency at 1-18 GHz increased with concentration of MWCNT over 0.5%. Such was observed even in various polymers including polycarbonate, polyacetal, polystyrene, acrylonitrfle-butadiene-styrene copolymer, polymethylmethacrylate, and poly-etheretherketone.

引用

页码：291 / +

页数：3

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