Quantitative characterization of alkyd cure kinetics with the quartz crystal microbalance

Lauren F. Sturdy, Alexander Yee, Francesca Casadio, Kenneth R. Shull*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

The quartz crystal microbalance (QCM) was used to measure the time-dependent mechanical properties of an alkyd resin throughout the transition from its application as a liquid to the formation of a solid film. Three different regions of curing were observed, corresponding to solvent evaporation; early stage curing, where the mass increases as oxygen is incorporated into the film; and long-term curing, where the mass decreases as volatile compounds are released. Mechanical property changes obtained at 15 MHz with the QCM were correlated with measurements at much lower frequencies utilizing traditional dynamic mechanical analysis. These mechanical property changes were in turn correlated to chemical changes tracked with Raman spectroscopy. From the temperature dependence of the curing process we obtain an effective activation energy of 4.1 kcal/mol.

Original languageEnglish (US)
Pages (from-to)387-396
Number of pages10
JournalPolymer
Volume103
DOIs
StatePublished - Oct 26 2016

Keywords

  • Coatings
  • QCM
  • Rheology

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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