iPP Based Nanocomposites Filled with Calcium Carbonate Nanoparticles: Structure/Properties Relationships

Macromolecular Symposia - Tập 234 Số 1 - Trang 156-162 - 2006
Maurizio Avella1, Simona Cosco2, Maria Laura Di Lorenzo1, Emilia Di Pace1, Maria Emanuela Errico1, Gennaro Gentile1
1Istituto di Chimica e Tecnologia dei Polimeri (ICTP)-CNR, Via Campi Flegrei, 34, 80078, Pozzuoli, Napoli, Italy
2Università degli Studi di Napoli “Federico II”, Dipartimento di Ingegneria dei Materiali e della Produzione, P.le Tecchio 80, 80125 Napoli, Italy

Tóm tắt

AbstractIsotactic polypropylene (iPP) based nanocomposites filled with calcium carbonate nanoparticles (CaCO3) were prepared by melt mixing and structure‐properties relationships of the nanomaterials were studied. Elongated CaCO3 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.

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Macromolecular Symposia

Tập 234 Số 1

156-162

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