期刊
POLYMERS FOR ADVANCED TECHNOLOGIES
卷 17, 期 9-10, 页码 764-771出版社
WILEY
DOI: 10.1002/pat.752
关键词
poly(ethylene terephthalate) (PET); clay; nanocomposites; surfactants; melt blending
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 (c) 2006 John Wiley & Sons, Ltd.
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