Carbon nanotube composites for broadband microwave absorbing materials
| Autor: | R. Daussin, Christophe Detrembleur, Aimad Saib, Isabelle Huynen, Xudong Lou, Robert Jérôme, Christian Bailly, Jean-Michel Thomassin, Christophe Pagnoulle, Lukasz Bednarz |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
chemistry.chemical_classification
Radiation Nanocomposite Materials science Composite number Carbon black Dielectric Polymer Carbon nanotube Condensed Matter Physics law.invention Condensed Matter::Materials Science chemistry law Electromagnetic shielding Electrical and Electronic Engineering Composite material Dispersion (chemistry) Electrical conductor Microwave |
| Zdroj: | 2005 European Microwave Conference. |
| DOI: | 10.1109/eumc.2005.1608849 |
| Popis: | 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 wt % 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 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|