Nonisothermal melt and cold crystallization kinetics of poly(3-hydroxybutyrate) and poly(3-hydroxybutyrate)/carbon black compounds. Evaluation of Pseudo-Avrami, Ozawa, and Mo models. Issue 6 (28th March 2016)

• Record Type: Journal Article
• Authors: Wellen, Renate M.R.; Canedo, Eduardo L.
• Is Part Of: Journal of materials research. Volume 31:Issue 6(2016)
• Page Start: 729
• Page End: 739
• Publication Date: 2016-03-28
• Subjects: PHB, -- carbon black, -- nonisothermal crystallization kinetics; Materials -- Research -- Periodicals; 620.1105
• DOI: 10.1557/jmr.2016.68
• Languages: English
• ISSNs: 0884-2914

Abstract

Abstract: Abstract : Three classical methods (Pseudo-Avrami, Ozawa, and Mo models) were used to correlate nonisothermal melt and cold crystallization kinetics data of neat poly(3-hydroxybutyrate) (PHB) and PHB/carbon black compounds, measured by differential scanning calorimetry. The applicability of the three models was tested comparing model predictions with experimental data. Results suggest that Pseudo-Avrami model fits the experimental data well. Ozawa model does not fit data well, as verified by the large uncertainties and unphysical values of the fitting parameters. Mo model may be considered adequate if moderately deviations could be tolerated. Datasets of all compositions are included as the Supplementary Information.