Prolongation of curing of epoxy-novolac vinyl ester resin with transition metal acetylacetonates

Prolongation of curing of epoxy-novolac vinyl ester resin with transition metal acetylacetonates The effect of transition metal (Fe, Cu, Co, Ni, Cr, Mn) acetylacetonates on curing of epoxy-novolac vinyl ester resin was studied. The resin gel time was determined by the method for monitoring gelation of liquids with increased viscosity, and the influence of the structure and concentration of metal acetylacetonates on the process was examined. Nickel acetylacetonate inhibits the curing, whereas cobalt acetylacetonate ensures relatively fast process completion and can be used as curing accelerator. Iron and chromium acetylacetonates prolong the process. The curing time can be regulated by varying the amount of the additive. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Applied Chemistry Springer Journals

Prolongation of curing of epoxy-novolac vinyl ester resin with transition metal acetylacetonates

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Publisher
Pleiades Publishing
Copyright
Copyright © 2015 by Pleiades Publishing, Ltd.
Subject
Chemistry; Chemistry/Food Science, general; Industrial Chemistry/Chemical Engineering
ISSN
1070-4272
eISSN
1608-3296
D.O.I.
10.1134/S1070427215040114
Publisher site
See Article on Publisher Site

Abstract

The effect of transition metal (Fe, Cu, Co, Ni, Cr, Mn) acetylacetonates on curing of epoxy-novolac vinyl ester resin was studied. The resin gel time was determined by the method for monitoring gelation of liquids with increased viscosity, and the influence of the structure and concentration of metal acetylacetonates on the process was examined. Nickel acetylacetonate inhibits the curing, whereas cobalt acetylacetonate ensures relatively fast process completion and can be used as curing accelerator. Iron and chromium acetylacetonates prolong the process. The curing time can be regulated by varying the amount of the additive.

Journal

Russian Journal of Applied ChemistrySpringer Journals

Published: Jul 14, 2015

References

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