Ortiz Serna, MP.; Díaz Calleja, R.; Sanchis Sánchez, MJ.; Riande, E.; Numes, R.; Martins, A.; Visconte, L. (2011). Dielectric spectroscopy of natural rubber-cellulose II nanocomposites. Journal of Non-Crystalline Solids. 357(2):598-604. https://doi.org/10.1016/j.jnoncrysol.2010.06.044
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/95465
Título:
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Dielectric spectroscopy of natural rubber-cellulose II nanocomposites
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Autor:
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Ortiz Serna, Mª Pilar
Díaz Calleja, Ricardo
Sanchis Sánchez, María Jesús
Riande, Evaristo
Numes, R.
Martins, A.
Visconte, L.
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Entidad UPV:
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Universitat Politècnica de València. Departamento de Termodinámica Aplicada - Departament de Termodinàmica Aplicada
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Fecha difusión:
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Resumen:
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[EN] Nanocomposite materials obtained from natural rubber (NR) reinforced with different amounts of cellulose II nanoparticles (in the range of 0 to 30 phr) are studied by dielectric spectroscopy (DS). For comparative ...[+]
[EN] Nanocomposite materials obtained from natural rubber (NR) reinforced with different amounts of cellulose II nanoparticles (in the range of 0 to 30 phr) are studied by dielectric spectroscopy (DS). For comparative purposes the pure materials, NR and cellulose, are also investigated. The dielectric spectra of the nanocomposites exhibit: (a) two overlapped ¿-relaxations associated respectively with the dynamic glass transitions of NR (faster process) and of the lipid present in NR; (b) a ß-relaxation associated with local chain dynamics of cellulose and (c) a relaxation process associated to the presence of traces of water in cellulose. The spectra exhibit conductivity phenomena at low frequencies and high temperatures. The samples were also studied in the dry state. An explanation is given concerning the cellulose effect on the dielectric properties of the dry and wet nanocomposites. © 2010 Elsevier B.V.All rights reserved.
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Palabras clave:
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Cellulose II
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Dielectric spectroscopy
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Nanocomposites
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Natural rubber
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Stearic acid
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Chain dynamics
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Dielectric spectra
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Dry and wet
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Dry state
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Dynamic glass transition
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High temperature
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Low frequency
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Nanocomposite materials
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Natural rubbers
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Pure materials
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Cellulose
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Dielectric devices
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Dielectric properties
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Glass transition
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Rubber
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Dielectric materials
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Derechos de uso:
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Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)
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Fuente:
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Journal of Non-Crystalline Solids. (issn:
0022-3093
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DOI:
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10.1016/j.jnoncrysol.2010.06.044
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Editorial:
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Elsevier
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Versión del editor:
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http://doi.org/10.1016/j.jnoncrysol.2010.06.044
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Código del Proyecto:
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info:eu-repo/grantAgreement/MICINN//MAT2008-06725-C03-03/ES/PROPIEDADES DIELECTRICAS, VISCOELASTICAS Y DE TRANSPORTE DE ELECTROLITOS SOLIDOS Y NANOCOMPUESTOS POLIMERICOS/
info:eu-repo/grantAgreement/GVA//ACOMP%2F2010%2F204/
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Agradecimientos:
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The authors gratefully acknowledge CICYT for Grant No. MAT2008-06725-C03-03 and Generalitat Valenciana for Grant No. ACOMP/2010/204.
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Tipo:
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Artículo
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