Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10398036 | Progress in Organic Coatings | 2005 | 12 Pages |
Abstract
This paper describes efforts to identify and screen suitable acid/epoxy reaction catalysts for low temperature curing (â¤120 °C) powder coatings including tertiary amines, ammonium compounds, and metal complexes. Thermal analysis techniques were developed to aid evaluation of catalyst efficacy and a statistical design of experiments was carried out to study several commercially available catalysts. In three different resin/crosslinker systems, the effect of catalyst type and loading were assessed and ranked in terms of kinetic responses including reaction rate, total heat-of-reaction, and extent-of-conversion. Isothermal kinetics modeling was also used to predict and compare reaction rates over a range of temperatures. Additionally, the susceptibility of each catalyzed system to thermal yellowing upon over-bake was evaluated.
Related Topics
Physical Sciences and Engineering
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Process Chemistry and Technology
Authors
Glen Merfeld, Chris Molaison, Rainer Koeniger, A. Ersin Acar, Steve Mordhorst, Joe Suriano, Pat Irwin, Ron Singh Warner, Ken Gray, Mark Smith, Kevin Kovaleski, Greg Garrett, Steve Finley, Debora Meredith, Mike Spicer, Tom Naguy,