Polylactide and carbon nanotubes/smectite-clay nanocomposites: Preparation, characterization, sorptive and electrical properties

Saveria, Santangelo; Giuliana, Gorrasi; Roberta Di Lieto,; Salvatore De Pasquale,; Giovanni, Patimo; Piperopoulos, Elpida; Maurizio, Lanza; Giuliana, Faggio; Francesco, Mauriello; Giacomo, Messina; Milone, Candida

doi:10.1016/j.clay.2010.12.013

In order to prepare polylactide nanocomposites, hybrid fillers were synthesized by direct growth of carbon nanotubes over as-purchased and Na+-exchanged clay catalysts with 15 wt.% iron load. The sorptive and electrical behavior of nanocomposites obtained by the incorporation of 1-5 wt.% filler was investigated. Results show that polylactide nanocomposites are endowed with increased sorption and outstandingly enhanced conductivity (up to 6 or even 9 orders of magnitude) with respect to the pristine polymer (sigma=1.10(-10) S/m). The origin of these changes is discussed, and the synergistic action between nanotubes and clay is evidenced. (C) 2010 Elsevier B.V. All rights reserved.

Titolo:	Polylactide and carbon nanotubes/smectite-clay nanocomposites: Preparation, characterization, sorptive and electrical properties
Autori:	Saveria Santangelo Giuliana Gorrasi Roberta Di Lieto Salvatore De Pasquale Giovanni Patimo PIPEROPOULOS, Elpida Maurizio Lanza Giuliana Faggio Francesco Mauriello Giacomo Messina MILONE, Candida mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2011
Rivista:	APPLIED CLAY SCIENCE
Abstract:	In order to prepare polylactide nanocomposites, hybrid fillers were synthesized by direct growth of carbon nanotubes over as-purchased and Na+-exchanged clay catalysts with 15 wt.% iron load. The sorptive and electrical behavior of nanocomposites obtained by the incorporation of 1-5 wt.% filler was investigated. Results show that polylactide nanocomposites are endowed with increased sorption and outstandingly enhanced conductivity (up to 6 or even 9 orders of magnitude) with respect to the pristine polymer (sigma=1.10(-10) S/m). The origin of these changes is discussed, and the synergistic action between nanotubes and clay is evidenced. (C) 2010 Elsevier B.V. All rights reserved.
Handle:	http://hdl.handle.net/11570/1912557
Appare nelle tipologie:	14.a.1 Articolo su rivista

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