Articles producció científica> Enginyeria Mecànica

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

  • Dades identificatives

    Identificador: imarina:5127983
    Autors:
    Shiravand F., Hutchinson J., Calventus Y., Ferrando F.
    Resum:
    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.
  • Altres:

    Autor segons l'article: Shiravand F., Hutchinson J., Calventus Y., Ferrando F.
    Departament: Enginyeria Mecànica
    e-ISSN: 1996-1944
    Autor/s de la URV: Ferrando Piera, Francesc
    Paraules clau: 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
    Resum: 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.
    Àrees temàtiques: 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
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 19961944
    Adreça de correu electrònic de l'autor: f.ferrando@urv.cat
    Identificador de l'autor: 0000-0003-4450-2734
    Pàgina final: 4223
    Data d'alta del registre: 2023-03-05
    Volum de revista: 7
    Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
    Enllaç font original: https://www.mdpi.com/1996-1944/7/6/4196
    Referència a l'article segons font original: Materials. 7 (6): 4196-4223
    Referència 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 Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    DOI de l'article: 10.3390/ma7064196
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2014
    Pàgina inicial: 4196
    Tipus de publicació: Journal Publications
  • Paraules clau:

    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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