Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/96781
Type: Artigo de periódico
Title: Multifunctional Materials Based On Iron/iron Oxide-filled Carbon Nanotubes/natural Rubber Composites
Author: Matos C.F.
Galembeck F.
Zarbin A.J.G.
Abstract: This work describes the synthesis, characterization and study of properties of novel multifunctional composite materials obtained by natural-rubber latex and a special kind of multi-walled carbon nanotube (CNT), in which the cavities are filled by magnetic species. To prepare stable aqueous dispersions of CNTs, two approaches have been employed, based on a mixture of the surfactant sodium dodecyl sulfate or a previous treatment with a mixture of acid solutions. The composites have been characterized by infrared and Raman spectroscopy, X-ray micro-tomography, transmission and scanning electron microscopy, and atomic and magnetic force microscopy. A good adhesion between the CNTs and the polymer matrices was obtained. Several samples have been prepared containing different amounts of CNTs (from 0.01 to 10 wt.%), and the effect of carbon nanotubes in the electrical, mechanical, chemical and thermal properties of the composites was evaluated by thermogravimetric analysis, resistivity measurements, stress-strain mechanical tests and solvent sorption measurements. The occurrence of networks of CNTs in the polymeric matrices provided significant increases in all of these properties. Additionally, because of the species encapsulated in CNT, the composites exhibit magnetic behavior, confirmed by magnetic force microscopy. This approach results in novel multifunctional material with great potential for further applications. © 2012 Elsevier Ltd. All rights reserved.
Editor: 
Rights: fechado
Identifier DOI: 10.1016/j.carbon.2012.05.060
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-84863716141&partnerID=40&md5=72be89fa80ccbe4ed71ee5c832772299
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.