Articles producció científica> Enginyeria Mecànica

Comparison of the nanostructure and mechanical performance of highly exfoliated epoxy-clay nanocomposites prepared by three different protocols

  • Datos identificativos

    Identificador: imarina:5127983
    Autores:
    Shiravand F., Hutchinson J., Calventus Y., Ferrando F.
    Resumen:
    Three different protocols for the preparation of polymer layered silicate nanocomposites based upon a tri-functional epoxy resin, triglycidyl para-amino phenol (TGAP), have been compared in respect of the cure kinetics, the nanostructure and their mechanical properties. The three preparation procedures involve 2 wt% and 5 wt% of organically modified montmorillonite (MMT), and are: isothermal cure at selected temperatures; pre-conditioning of the resin-clay mixture before isothermal cure; incorporation of an initiator of cationic homopolymerisation, a boron tri-fluoride methyl amine complex, BF3·MEA, within the clay galleries. It was found that features of the cure kinetics and of the nanostructure correlate with the measured impact strength of the cured nanocomposites, which increases as the degree of exfoliation of the MMT is improved. The best protocol for toughening the TGAP/MMT nanocomposites is by the incorporation of 1 wt% BF3·MEA into the clay galleries of nanocomposites containing 2 wt% MMT. © 2014 by the authors.
  • Otros:

    Autor según el artículo: Shiravand F., Hutchinson J., Calventus Y., Ferrando F.
    Departamento: Enginyeria Mecànica
    e-ISSN: 1996-1944
    Autor/es de la URV: Ferrando Piera, Francesc
    Palabras clave: Pre-conditioning Nanostructure Nanocomposite Montmorillonite Mechanical properties Layered silicate Homopolymerisation Exfoliation Epoxy Differential scanning calorimetry nanostructure nanocomposite montmorillonite mechanical properties layered silicate homopolymerisation exfoliation epoxy differential scanning calorimetry
    Resumen: Three different protocols for the preparation of polymer layered silicate nanocomposites based upon a tri-functional epoxy resin, triglycidyl para-amino phenol (TGAP), have been compared in respect of the cure kinetics, the nanostructure and their mechanical properties. The three preparation procedures involve 2 wt% and 5 wt% of organically modified montmorillonite (MMT), and are: isothermal cure at selected temperatures; pre-conditioning of the resin-clay mixture before isothermal cure; incorporation of an initiator of cationic homopolymerisation, a boron tri-fluoride methyl amine complex, BF3·MEA, within the clay galleries. It was found that features of the cure kinetics and of the nanostructure correlate with the measured impact strength of the cured nanocomposites, which increases as the degree of exfoliation of the MMT is improved. The best protocol for toughening the TGAP/MMT nanocomposites is by the incorporation of 1 wt% BF3·MEA into the clay galleries of nanocomposites containing 2 wt% MMT. © 2014 by the authors.
    Áreas temáticas: Química Odontología Medicina veterinaria Medicina i Materials science, multidisciplinary Materiais Interdisciplinar General materials science Engenharias iv Engenharias iii Engenharias ii Engenharias i Condensed matter physics Ciências biológicas ii Ciências biológicas i Ciências agrárias i Ciência de alimentos Ciência da computação Biotecnología Astronomia / física Arquitetura, urbanismo e design
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 19961944
    Direcció de correo del autor: f.ferrando@urv.cat
    Identificador del autor: 0000-0003-4450-2734
    Página final: 4223
    Fecha de alta del registro: 2023-03-05
    Volumen de revista: 7
    Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
    Enlace a la fuente original: https://www.mdpi.com/1996-1944/7/6/4196
    Referencia al articulo segun fuente origial: Materials. 7 (6): 4196-4223
    Referencia de l'ítem segons les normes APA: Shiravand F., Hutchinson J., Calventus Y., Ferrando F. (2014). Comparison of the nanostructure and mechanical performance of highly exfoliated epoxy-clay nanocomposites prepared by three different protocols. Materials, 7(6), 4196-4223. DOI: 10.3390/ma7064196
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    DOI del artículo: 10.3390/ma7064196
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2014
    Página inicial: 4196
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Materials Science, Multidisciplinary
    Pre-conditioning
    Nanostructure
    Nanocomposite
    Montmorillonite
    Mechanical properties
    Layered silicate
    Homopolymerisation
    Exfoliation
    Epoxy
    Differential scanning calorimetry
    nanostructure
    nanocomposite
    montmorillonite
    mechanical properties
    layered silicate
    homopolymerisation
    exfoliation
    epoxy
    differential scanning calorimetry
    Química
    Odontología
    Medicina veterinaria
    Medicina i
    Materials science, multidisciplinary
    Materiais
    Interdisciplinar
    General materials science
    Engenharias iv
    Engenharias iii
    Engenharias ii
    Engenharias i
    Condensed matter physics
    Ciências biológicas ii
    Ciências biológicas i
    Ciências agrárias i
    Ciência de alimentos
    Ciência da computação
    Biotecnología
    Astronomia / física
    Arquitetura, urbanismo e design
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