Influence of Titanium Dioxide on the Crystallization Behavior of an Ethylene-Propylene Copolymer (Articolo in rivista)

Type
Label
  • Influence of Titanium Dioxide on the Crystallization Behavior of an Ethylene-Propylene Copolymer (Articolo in rivista) (literal)
Anno
  • 2003-01-01T00:00:00+01:00 (literal)
Alternative label
  • Raimo M., Martuscelli E. (2003)
    Influence of Titanium Dioxide on the Crystallization Behavior of an Ethylene-Propylene Copolymer
    in Journal of applied polymer science (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Raimo M., Martuscelli E. (literal)
Pagina inizio
  • 3409 (literal)
Pagina fine
  • 3416 (literal)
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  • 17/4/2012: This article has been cited 8 times in Scopus (literal)
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  • 90 (literal)
Rivista
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  • No. Citazione=1; Autocitazione=0; Motore utilizzato per le citazioni=Google Scholar. (literal)
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  • 8 (literal)
Note
  • Scopus (literal)
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  • CNR Ist. di Chim./Tecn. dei Polimeri, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy (literal)
Titolo
  • Influence of Titanium Dioxide on the Crystallization Behavior of an Ethylene-Propylene Copolymer (literal)
Abstract
  • Crystallization of an ethylene-propylene copolymer (E/P) filled with diverse weight percentages of titanium dioxide (TiO2) was performed under isothermal and non-isothermal conditions to investigate the influence of the inorganic substance on the nucleation and growth mechanisms of the matrix. The overall and radial crystallization rates of the composite materials were measured using, respectively, differential scanning calorimetry (DSC) and optical microscopy. The nucleation density of E/P spherulites as a function of composition was investigated by scanning electron microscopy (SEM), revealing a nucleating effect of TiO2. A comparison between the spherulitic texture of specimens showed a higher fineness of the composites relative to the neat matrix, whereas no changes of surface nucleation density were appreciable among composites within the explored compositional range. The thermal behaviour is discussed in the light of the enhanced thermal conductivity of polymer composites, which conciliates the crystallization kinetics of the matrix, analyzed using the Avrami equation, to optical and SEM observations. (literal)
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