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Polymer Bulletin
Erschienen in: Polymer Bulletin 9/2014

01.09.2014 | Original Paper

Non-isothermal crystallization kinetics of poly(ethylene terephthalate)/mica composites

verfasst von: Xintu Lin, Huaji Zhang, Meizhen Ke, Liren Xiao, Dongqiang Zuo, Qingrong Qian, Qinghua Chen

Erschienen in: Polymer Bulletin | Ausgabe 9/2014

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Abstract

The non-isothermal crystallization kinetics of pure poly(ethylene terephthalate) (PET), PET/mica and PET/TiO2-coated mica composites were investigated by differential scanning calorimetry with different theoretical models, including the modified Avrami method, Ozawa method and Mo method. The activation energies of non-isothermal crystallization were calculated by Kissinger method and Flynn–Wall–Ozawa method. The results show that the modified Avrami equation and Ozawa theory fail to describe the non-isothermal crystallization behavior of all composites, while the Mo model fits the experiment data fair well. It is also found that the mica and TiO2-coated mica could act as heterogeneous nucleating agent and accelerate the crystallization rates of PET, and the effect of TiO2-coated mica is stronger than that of mica. The result is further reinforced by calculating the effective activation energy of the non-isothermal crystallization process for all composites using the Kissinger method and the Flynn–Wall–Ozawa method.
Vorheriger Artikel Ionic strength effect in polyelectrolyte dilute solutions within the Debye–Hückel approximation: Monte Carlo and Brownian dynamics simulations
Nächster Artikel Synthesis and properties of novel hydrogels from oxidized pectin crosslinked gelatin for biomedical applications

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Metadaten
Titel
Non-isothermal crystallization kinetics of poly(ethylene terephthalate)/mica composites
verfasst von
Xintu Lin
Huaji Zhang
Meizhen Ke
Liren Xiao
Dongqiang Zuo
Qingrong Qian
Qinghua Chen
Publikationsdatum
01.09.2014
Verlag
Springer Berlin Heidelberg
Erschienen in
Polymer Bulletin / Ausgabe 9/2014
Print ISSN: 0170-0839
Elektronische ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-014-1187-1

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