Epoxy Clay Hybrid (ECH) Nanocomposites: Strategies for the Dispersion of Clay Platelets in Amine-Cured Eposy Resins
Gale A. Holmes, Karen Ford
A brief review of the research literature that deals with the exfoliation of montmorillonite clay exchanged with omega-amino acid and long-chain alkylamines is presented. From this review data, clay-matrix adhesion, in addition to clay-platelet dispersion, are consider as critical-path parameters for the development of structural nanocomposites. In an attempt to identify a suitable functionalized clay surface, we assess the feasibility of using omega-hydroxylamines as a potential candidate to fullfill these two requirements. In this research, readily available short-chain omega-hydroxylamines amines and alkylamines of comparable chain length are ion exchanged with the Na+ ions on the clay surface. X-Ray Diffraction data revealed that the basal spacing of the two classes of ammonium salts are very similar, suggesting that omega-hydroxylamines of suitable chain length may provide a route for enhancing the adhesion between the clay platelets and the epoxy amine matrix, while promoting dispersion during the epoxy-amine chemical reaction.
Proceedings of the American Society for Composites
and Ford, K.
Epoxy Clay Hybrid (ECH) Nanocomposites: Strategies for the Dispersion of Clay Platelets in Amine-Cured Eposy Resins, Proceedings of the American Society for Composites, Blacksburg, VA, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=851934
(Accessed December 2, 2023)