Kinetics of the curing process of alkyd-melamine resin systems

The aim of this work was to investigate the nature of the curing process of an alkyd-melamine resin mixture, and to determine the kinetic parameters from DSC measurements (Perkin-Euner 2). The experiments were performed using both the dynamic method, with variation of peak exotherm temperature with...

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Bibliographic Details
Published in:Thermochimica acta 1989-09, Vol.149, p.341-348
Main Authors: FILIPOVIC, J. M, VELICKOVIC, J. S, BATALOVIC, Z. U, TRIFUNOVIC, M. D
Format: Article
Language:English
Subjects:
Applied sciences
Coatings. Paints, varnishes and inks
Exact sciences and technology
Film formation and curing, properties, testing
Polymer industry, paints, wood
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Summary:The aim of this work was to investigate the nature of the curing process of an alkyd-melamine resin mixture, and to determine the kinetic parameters from DSC measurements (Perkin-Euner 2). The experiments were performed using both the dynamic method, with variation of peak exotherm temperature with heating rate, and the isothermal method. A single broad peak was observed in all experiments. Practically no reaction was observed below 350 K. From the dynamic experiments at four heating rates an activation energy of 78.7 kJ mol −1 was obtained. More precise results were obtained from isothermal experiments by scanning the temperature range 415–430 K: a reaction order very close to one, reaction rate constants from 0.76 to 0.85 s −1 and an activation energy of 60.2.
ISSN:0040-6031
1872-762X
DOI:10.1016/0040-6031(89)85294-3