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Crystallization kinetics study of dynamically vulcanized PA6/NBR/HNTs nanocomposites by nonisothermal differential scanning calorimetry
Author(s) -
Paran Seyed Mohammad Reza,
Vahabi Henri,
Ducos Franck,
Formela Krzysztof,
Zarrintaj Payam,
Laachachi Abdelghani,
Lopez Cuesta JoséMarie,
Saeb Mohammad Reza
Publication year - 2018
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.46488
Subject(s) - differential scanning calorimetry , crystallization , materials science , vulcanization , kinetics , elastomer , thermoplastic elastomer , activation energy , nanocomposite , composite material , polymer chemistry , nucleation , avrami equation , chemical engineering , thermodynamics , polymer , crystallization of polymers , natural rubber , copolymer , chemistry , physics , quantum mechanics , engineering
Investigation of crystallization behavior and kinetics of thermoplastic elastomer nanocomposites was the subject of limited works because of complexities associated with semiexperimental modeling of such phenomenon in a system containing components having completely different behavior in the molten state. Nonisothermal crystallization kinetics of dynamically vulcanized PA6/NBR/HNTs thermoplastic elastomer nanocomposites was mathematically modeled applying well‐known Avrami, Ozawa, and Mo theoretical models to the differential scanning calorimetry data gathered at various cooling rates. It was found that HNTs contribute as nucleating agents to the crystallization kinetics and cause acceleration of crystallization. Activation energy of the crystallization was calculated by correlating the crystallization peak temperature with the cooling rate using Kissinger model. It was found that Mo equation could properly describe nonisothermal crystallization kinetics of the PA6/NBR/HNTs thermoplastic elastomer nanocomposites. This was recognized from the obtained parameters of Mo equation in terms of HNTs loading level, which suggested a higher rate for dynamic crystallization. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018 , 135 , 46488.