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iPP Based Nanocomposites Filled with Calcium Carbonate Nanoparticles: Structure/Properties Relationships
Author(s) -
Avella Maurizio,
Cosco Simona,
Lorenzo Maria Laura Di,
Pace Emilia Di,
Errico Maria Emanuela,
Gentile Gennaro
Publication year - 2006
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200650220
Subject(s) - materials science , nanocomposite , calcium carbonate , coating , nanoparticle , polypropylene , maleic anhydride , nanomaterials , composite material , adhesion , polymer , chemical engineering , copolymer , nanotechnology , engineering
Isotactic polypropylene (iPP) based nanocomposites filled with calcium carbonate nanoparticles (CaCO 3 ) were prepared by melt mixing and structure‐properties relationships of the nanomaterials were studied. Elongated CaCO 3 nanopowders coated with two different coating agents, polypropylene‐maleic anhydride graft copolymer (iPP‐g‐MA) and fatty acids (FA), were tested as nanoreinforced phases. The influence of surface treatment of the nanoparticles on the polymer/nanofillers interfacial adhesion and on the final materials properties was investigated. Morphological analysis showed that the selected coating agents induce different iPP/nanofiller adhesion degrees. Young's modulus increases as a function of the nanoparticles content and the coating agent nature. Finally, all the prepared nanocomposites showed a significant improvement of iPP barrier properties either to oxygen or to carbon dioxide.