Carbon nanotube composites for broadband microwave absorbing materials

被引：179

作者：

Saib, Aimad ^{[1
]}

Bednarz, Lukasz

Daussin, Raphael

Bailly, Christian

Lou, Xudong

Thomassin, Jean-Michel

Pagnoulle, Christophe

Detrembleur, Christophe

Jérôme, Robert

Huynen, Isabelle

机构：

[1] CISSOID SA, B-1348 Louvain, Belgium

[2] Catholic Univ Louvain, Microwave Lab, B-1348 Louvain, Belgium

[3] Catholic Univ Louvain, Polymer Sci Lab, B-1348 Louvain, Belgium

[4] Univ Toronto, Dept Chem, Toronto, ON M5S 3H6, Canada

[5] Univ Liege, Ctr Educ & Res Macromol, B-4000 Liege, Belgium

[6] PhysIOL SA, B-4000 Liege, Belgium

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2006年 / 54卷 / 06期

关键词：

carbon nanotubes (CNTs); microwave absorbers; nanocomposite materials;

D O I：

10.1109/TMTT.2006.874889

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, we present a new shielding and absorbing composite based on carbon nanotubes (CNTs) dispersed inside a polymer dielectric material. The extremely high aspect ratio of CNTs and their remarkable conductive properties lead to good absorbing properties with very low concentrations. A broadband characterization technique is used to measure the microwave electrical properties of CNT composites. It is shown that a conduction level of 1 S/m is reached for only 0.35 weight % of a CNT, while, for a classical absorbing composite based on carbon black, 20% concentration is mandatory. The conductive properties are explained by a phenomenological electrical model and successfully correlated with rheological data aiming at monitoring the dispersion of conductive inclusions in polymer matrices.

引用

页码：2745 / 2754

页数：10

共 11 条

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