Get access

Influence of the isothermal cure temperature on the nanostructure and thermal properties of an epoxy layered silicate nanocomposite

Authors

  • Fatemeh Shiravand,

    1. Centre for Research in NanoEngineering, and Departament de Màquines i Motors Tèrmics, ETSEIAT, Universitat Politècnica de Catalunya, 08222 Terrassa, Spain
    Search for more papers by this author
  • John M. Hutchinson,

    Corresponding author
    1. Centre for Research in NanoEngineering, and Departament de Màquines i Motors Tèrmics, ETSEIAT, Universitat Politècnica de Catalunya, 08222 Terrassa, Spain
    • Centre for Research in NanoEngineering, and Departament de Màquines i Motors Tèrmics, ETSEIAT, Universitat Politècnica de Catalunya, 08222 Terrassa, Spain. E-mail: hutchinson@mmt.upc.edu

    Search for more papers by this author
  • Yolanda Calventus

    1. Centre for Research in NanoEngineering, and Departament de Màquines i Motors Tèrmics, ETSEIAT, Universitat Politècnica de Catalunya, 08222 Terrassa, Spain
    Search for more papers by this author

Abstract

The cure kinetics of triglycidyl p-amino phenol (TGAP) epoxy resin with a diamine (4,4-diamino diphenyl sulphone [DDS]), reinforced with montmorillonite (MMT), has been studied by differential scanning calorimetry. The isothermal cure reaction consists of two parts: a rapid intra-gallery reaction, attributed to homopolymerization of the TGAP catalyzed by the MMT and the extra-gallery cross-linking reaction of the TGAP with the DDS. Increasing cure temperature promotes the intra-gallery reaction, which should promote an exfoliated nanostructure; this is confirmed by transmission electron microscopy. These results indicate that this system (TGAP/DDS/MMT) is an excellent candidate for achieving exfoliated polymer-layered silicate nanocomposites and identifies a protocol for optimizing the degree of exfoliation. POLYM. ENG. SCI., 54:51–58, 2014. © 2013 Society of Plastics Engineers

Ancillary