Crystallization of a polyamide 6/Montmorillonite nanocomposite at rapid cooling

D. Mileva, A. Monami, D. Cavallo, G.C. Alfonso, G. Portale, R. Androsch

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The crystallization behavior of a polyamide 6/organo-modified montmorillonite (PA 6/OMMT) nanocomposite has been investigated by scanning chip calorimetry and wide-angle X-ray scattering, with emphasis placed on the evaluation of the effect of supercooling/cooling rate on the crystal/mesophase polymorphism of the PA 6matrix. Presence of OMMT has negligible effect on the kinetics of formation of alpha-crystals of PA 6 at low cooling rate while there is observed enhanced nucleation of gamma-mesophase on fast cooling. Furthermore, addition of OMMT leads to a distinct increase of the cooling rate required to completely vitrify the amorphous state. The performed experiments demonstrate that the nucleating effect of OMMT in PA 6/OMMT nanocomposites is of particular importance at cooling conditions relevant in polymer processing.
Original languageEnglish
Pages (from-to)938-943
Number of pages6
JournalMacromolecular Materials and Engineering
Issue number9
Publication statusPublished - 2013


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