Influence of colloidal nano-silica on alkyd autoxidation

Miroslav Nikolic*, Anand Ramesh Sanadi, David Löf, Søren Talbro Barsberg

*Corresponding author for this work
3 Citations (Scopus)

Abstract

Nanoparticles are often added to coatings in order to improve their mechanical properties. However, nanoparticles can also influence the cross-linking reaction of polymers and overall curing kinetics, and from this follows that properties of interest are further impacted. In research studies on alkyd-based coatings, only the physical drying stage during the first 24 h has been studied in this respect until now. In this study, it was shown with the use of Raman spectroscopy that colloidal nano-silica can change the rate of alkyd autoxidation and how this effect is reflected on the tensile properties of the coating. One of the consequences of the influence of nano-silica on curing kinetics is that, contrary to implicit assumptions of common testing methods, the real effect of nanoparticles on mechanical properties can emerge much later in the coating lifetime.

Original languageEnglish
JournalJournal of Materials Science
Volume52
Issue number12
Pages (from-to)7158-7165
Number of pages8
ISSN0022-2461
DOIs
Publication statusPublished - 2017

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