Dias, D. S. [UNESP]Crespi, Marisa Spirandeli [UNESP]Ribeiro, Clovis Augusto [UNESP]Fernandes, J. L S [UNESP]Cerqueira, H. M G [UNESP]2014-05-272014-05-272008-02-01Journal of Thermal Analysis and Calorimetry, v. 91, n. 2, p. 409-412, 2008.1388-6150http://hdl.handle.net/11449/70293Samples of paint (P), reused PET (PET-R) and paint/PET-R mixtures (PPET-R) were evaluated using DSC to verify their physical-chemical properties and thermal behavior. Films from paints and PPET-R are visually similar. It was possible to establish that the maximum amount of PET-R that can be added to paint without significantly altering its filming properties is 2%. The cure process (80-203°C) was identified through DSC curves. The kinetic parameters, activation energy (E a) and Arrhenius parameters (A) for the samples containing 0.5 to 1% of PET-R, were calculated using the Flynn-Wall-Ozawa isoconversional method. It was observed that for greater amounts of PET-R added, there is a decrease in the E a values for the cure process. A Kinetic compensation effect (KCE), represented by the equation InA=-2.70+0.31E a was observed for all the samples. The most suitable kinetic model to describe this cure process is the autocatalytic Šesták-Berggreen, model applied to heterogeneous systems. © 2007 Springer Science+Business Media, LLC.409-412engPaintPaint/PET-R mixturePETActivation energyAlkyd resinsFilm growthMathematical modelsPolyethylene terephthalatesReaction kineticsThermal effectsAlkyd resin paintsNonisothermal curingArtigo10.1007/s10973-006-7862-1Acesso restrito2-s2.0-38949160778747131011399914084983108918100820000-0002-7984-5908