INVESTIGADORES
GOYANES Silvia Nair
artículos
Título:
Magnetic properties of multi-walled carbon nanotube - epoxy composites
Autor/es:
ZILLI DARIO,; CLAUDIO CHILLOTTE,; ESCOBAR MARIANO,; BEKERIS VICTORIA,; RUBIOLO GERARDO,; CUKIERMAN AL,; GOYANES, SILVIA
Revista:
POLYMER
Editorial:
Elsevier
Referencias:
Lugar: Amsterdam; Año: 2005 vol. 46 p. 6090 - 6095
ISSN:
0032-3861
Resumen:
Abstract
Epoxy matrix composites have been prepared using as filler different weight fractions (0.03?1 wt%) of CVD grown multi-walled carbon
nanotubes (MWCNTs) containing trapped iron nanoparticles. Magnetic characterization performed at room temperature with magnetic field
between K19 and 19 kG shows that the nanocomposites are weakly ferromagnetic at room temperature. An abrupt variation in the
dependence of both the coercivity field, BC, and remanent magnetization, MR, with the weight fraction of MWCNTs, f, was found for fZ
dependence of both the coercivity field, BC, and remanent magnetization, MR, with the weight fraction of MWCNTs, f, was found for fZ
dependence of both the coercivity field, BC, and remanent magnetization, MR, with the weight fraction of MWCNTs, f, was found for fZ
dependence of both the coercivity field, BC, and remanent magnetization, MR, with the weight fraction of MWCNTs, f, was found for fZ
K19 and 19 kG shows that the nanocomposites are weakly ferromagnetic at room temperature. An abrupt variation in the
dependence of both the coercivity field, BC, and remanent magnetization, MR, with the weight fraction of MWCNTs, f, was found for fZBC, and remanent magnetization, MR, with the weight fraction of MWCNTs, f, was found for fZ
0.4%. Results suggest the formation of MWCNTs agglomerates for increasing weight concentrations, in accordance with SEM micrographs.
Keywords: Epoxy matrix; Carbon nanotubes; Magnetic properties