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Composites: Mechanics, Computations, Applications: An International Journal
ESCI SJR: 0.193 SNIP: 0.497 CiteScore™: 0.39

ISSN Imprimer: 2152-2057
ISSN En ligne: 2152-2073

Composites: Mechanics, Computations, Applications: An International Journal

DOI: 10.1615/CompMechComputApplIntJ.2019032022
pages 363-371

CRYSTALLIZATION OF DISPERSIVELY FILLED POLYMER NANOCOMPOSITES

Georgii V. Kozlov
Kh.M. Berbekov Kabardino-Balkarian State University, 173 Chernyshevsky Str., Nal'chik, 360000, Russia
Yulia N. Karnet
Institute of Applied Mechanics, Russian Academy of Sciences, 7 Leningradsky Ave., Moscow, 125040, Russian Federation
I. V. Dolbin
Kh.M. Berbekov Kabardino-Balkarian State University, 173 Chernyshevsky Str., Nal'chik, 360000, Russia
A. N. Vlasov
Institute of Applied Mechanics, Russian Academy of Sciences, 7 Leningradsky Ave., Moscow, 125040, Russian Federation

RÉSUMÉ

It is shown that the degree of crystallinity of the polymer matrix on introduction of dispersed nanoparticles is determined by the formation of crystallizing interfacial regions and the melting temperature of crystallites. Aggregation of the initial nanoparticles increases their effectiveness as a nucleating agent for crystallization of the polymer matrix. An increase in the degree of crystallinity of the polymer matrix fully explains the increase in the elasticity modulus in the case of polypropylene/calcium carbonate nanocomposites, and only partially of polypropylene/globular nanocarbon nanocomposites, due to the difference in the crystallization mechanism.

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