New magnetic nanobiocomposite based in galactomannan/glycerol and superparamagnetic nanoparticles

N. D.G. Souza; R. M. Freire; A. P. Cunha; M. A.S. Da Silva; S. E. Mazzetto; A. S.B. Sombra; J. C. Denardin; N. M.P.S. Ricardo; P. B.A. Fechine

doi:10.1016/j.matchemphys.2015.02.033

New magnetic nanobiocomposite based in galactomannan/glycerol and superparamagnetic nanoparticles

N. D.G. Souza
, R. M. Freire
, A. P. Cunha
, M. A.S. Da Silva
, S. E. Mazzetto
, A. S.B. Sombra
, J. C. Denardin
, N. M.P.S. Ricardo
, P. B.A. Fechine

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

In this study, magnetic nanobiocomposites were prepared in different proportions and produced with galactomannan (GM), magnetic nanoparticles of NiZn and glycerol (GL). The microstructure and morphology of the samples were characterized by Scanning Electron Microscopy (SEM), X-ray powder diffraction, Fourier transform infrared (FTIR) spectroscopy, Thermal analysis (TG) and Differential scanning calorimetry (DSC). The magnetic and dielectric behavior of the films was studied by Vibrating sample magnetometer (VSM) and Impedance spectroscopy. The results showed efficient incorporation of NiZn in the polymer matrix. The degradation profiles presented thermal events that were confirmed by endothermic and exothermic processes from DSC measurements. Films presented saturation magnetization (M_s) range from 6 to 17 emu/g and superparamagnetic behavior. It was observed that the values of dielectric constant increased as a function of the nanoparticles concentration in the bionacomposite. Thus, this kind of biocomposite could be used as a versatile magnetic-dielectric in microwave devices.

Original language	English
Pages (from-to)	113-120
Number of pages	8
Journal	Materials Chemistry and Physics
Volume	156
DOIs	https://doi.org/10.1016/j.matchemphys.2015.02.033
State	Published - 15 Apr 2015
Externally published	Yes

Keywords

Composite materials
Dielectric properties
Magnetic materials
Magnetic properties

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10.1016/j.matchemphys.2015.02.033

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@article{3512d0840e8e463e80ef7fc9d73cdfce,

title = "New magnetic nanobiocomposite based in galactomannan/glycerol and superparamagnetic nanoparticles",

abstract = "In this study, magnetic nanobiocomposites were prepared in different proportions and produced with galactomannan (GM), magnetic nanoparticles of NiZn and glycerol (GL). The microstructure and morphology of the samples were characterized by Scanning Electron Microscopy (SEM), X-ray powder diffraction, Fourier transform infrared (FTIR) spectroscopy, Thermal analysis (TG) and Differential scanning calorimetry (DSC). The magnetic and dielectric behavior of the films was studied by Vibrating sample magnetometer (VSM) and Impedance spectroscopy. The results showed efficient incorporation of NiZn in the polymer matrix. The degradation profiles presented thermal events that were confirmed by endothermic and exothermic processes from DSC measurements. Films presented saturation magnetization (Ms) range from 6 to 17 emu/g and superparamagnetic behavior. It was observed that the values of dielectric constant increased as a function of the nanoparticles concentration in the bionacomposite. Thus, this kind of biocomposite could be used as a versatile magnetic-dielectric in microwave devices.",

keywords = "Composite materials, Dielectric properties, Magnetic materials, Magnetic properties",

author = "Souza, \{N. D.G.\} and Freire, \{R. M.\} and Cunha, \{A. P.\} and \{Da Silva\}, \{M. A.S.\} and Mazzetto, \{S. E.\} and Sombra, \{A. S.B.\} and Denardin, \{J. C.\} and Ricardo, \{N. M.P.S.\} and Fechine, \{P. B.A.\}",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2015",

month = apr,

day = "15",

doi = "10.1016/j.matchemphys.2015.02.033",

language = "English",

volume = "156",

pages = "113--120",

journal = "Materials Chemistry and Physics",

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TY - JOUR

T1 - New magnetic nanobiocomposite based in galactomannan/glycerol and superparamagnetic nanoparticles

AU - Souza, N. D.G.

AU - Freire, R. M.

AU - Cunha, A. P.

AU - Da Silva, M. A.S.

AU - Mazzetto, S. E.

AU - Sombra, A. S.B.

AU - Denardin, J. C.

AU - Ricardo, N. M.P.S.

AU - Fechine, P. B.A.

PY - 2015/4/15

Y1 - 2015/4/15

N2 - In this study, magnetic nanobiocomposites were prepared in different proportions and produced with galactomannan (GM), magnetic nanoparticles of NiZn and glycerol (GL). The microstructure and morphology of the samples were characterized by Scanning Electron Microscopy (SEM), X-ray powder diffraction, Fourier transform infrared (FTIR) spectroscopy, Thermal analysis (TG) and Differential scanning calorimetry (DSC). The magnetic and dielectric behavior of the films was studied by Vibrating sample magnetometer (VSM) and Impedance spectroscopy. The results showed efficient incorporation of NiZn in the polymer matrix. The degradation profiles presented thermal events that were confirmed by endothermic and exothermic processes from DSC measurements. Films presented saturation magnetization (Ms) range from 6 to 17 emu/g and superparamagnetic behavior. It was observed that the values of dielectric constant increased as a function of the nanoparticles concentration in the bionacomposite. Thus, this kind of biocomposite could be used as a versatile magnetic-dielectric in microwave devices.

AB - In this study, magnetic nanobiocomposites were prepared in different proportions and produced with galactomannan (GM), magnetic nanoparticles of NiZn and glycerol (GL). The microstructure and morphology of the samples were characterized by Scanning Electron Microscopy (SEM), X-ray powder diffraction, Fourier transform infrared (FTIR) spectroscopy, Thermal analysis (TG) and Differential scanning calorimetry (DSC). The magnetic and dielectric behavior of the films was studied by Vibrating sample magnetometer (VSM) and Impedance spectroscopy. The results showed efficient incorporation of NiZn in the polymer matrix. The degradation profiles presented thermal events that were confirmed by endothermic and exothermic processes from DSC measurements. Films presented saturation magnetization (Ms) range from 6 to 17 emu/g and superparamagnetic behavior. It was observed that the values of dielectric constant increased as a function of the nanoparticles concentration in the bionacomposite. Thus, this kind of biocomposite could be used as a versatile magnetic-dielectric in microwave devices.

KW - Composite materials

KW - Dielectric properties

KW - Magnetic materials

KW - Magnetic properties

UR - https://www.scopus.com/pages/publications/84925248595

U2 - 10.1016/j.matchemphys.2015.02.033

DO - 10.1016/j.matchemphys.2015.02.033

M3 - Article

AN - SCOPUS:84925248595

SN - 0254-0584

VL - 156

SP - 113

EP - 120

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

ER -

New magnetic nanobiocomposite based in galactomannan/glycerol and superparamagnetic nanoparticles

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Keywords

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