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

URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/

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

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