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Preparation and characterization of poly(ethylene terephthalate)/clay nanocomposites by melt blending using thermally stable surfactants
Author(s) -
Costache Marius C.,
Heidecker M. J.,
Manias E.,
Wilkie Charles A.
Publication year - 2006
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.752
Subject(s) - nanocomposite , materials science , thermogravimetric analysis , montmorillonite , hectorite , chemical engineering , ethylene , polymer chemistry , calorimetry , composite material , organic chemistry , chemistry , catalysis , engineering , thermodynamics , physics
Poly(ethylene terephthalate) (PET)/clay nanocomposites were prepared by melt blending and their morphologies and properties were investigated through X‐ray diffraction, bright field transmission electron microscopy, thermogravimetric analysis and cone calorimetry. Three clays were comparatively studied—montmorillonite, hectorite and magadiite—all organically modified with thermally stable surfactants developed in this laboratory. Two such organic modifications were investigated, alkyl‐quinolinium surfactants and vinylbenzyl‐ammonium containing copolymers; both organic modifications combine high enough degradation temperature to allow for melt processing with PET, and also favorable thermodynamics for nanocomposite formation with PET. All nanocomposites showed about the same value for the peak heat release rate (PHRR). The amount of char increases after nanocomposite formation and this could account for the PHRRs. Copyright © 2006 John Wiley & Sons, Ltd.