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 15wt.% iron load. The sorptive and electrical behavior of nanocomposites obtained by the incorporation of 1-5wt.% 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 (σ=1E-10S/m). The origin of these changes is discussed, and the synergistic action between nanotubes and clay is evidenced.
Polylactide and carbon nanotubes/smectite-clay nanocomposites: preparation, characterization, sorptive and electrical properties / Santangelo, S; Gorrasi, G.; Dilieto, R.; Depasquale, S.; Patimo, G.; Piperopoulos, E.; Lanza, M.; Faggio, G.; Mauriello, F.; Messina, G.; Milone, C.. - In: APPLIED CLAY SCIENCE. - ISSN 0169-1317. - 53:2(2011), pp. 188-194. [10.1016/j.clay.2010.12.013]
Polylactide and carbon nanotubes/smectite-clay nanocomposites: preparation, characterization, sorptive and electrical properties
SANTANGELO S
;G. FAGGIO;F. MAURIELLO;G. MESSINA;
2011-01-01
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 15wt.% iron load. The sorptive and electrical behavior of nanocomposites obtained by the incorporation of 1-5wt.% 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 (σ=1E-10S/m). The origin of these changes is discussed, and the synergistic action between nanotubes and clay is evidenced.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
