The use of natural antioxidants is an attractive way to formulate nanocomposites with extended durability and with potential applications in bio-medical field. In this work, Vitamin E (VE) in the form of α-tocopherol and Quercetin (Q) are physically immobilized on the outer surface of multi-walled carbon nanotubes (CNTs). Afterward, the CNTs-VE and CNTs-Q are used to formulate thermally stable ultra high molecular weight polyethylene based nanocomposites. The obtained results in the study of the thermo-oxidation behavior suggest a beneficial effect of the natural anti-oxidant carbon nanotubes systems. The unexpected excellent thermo-resistance of the nanocomposites seems to be due to a synergistic effect of the natural anti-oxidant and carbon nanotubes, i.e. strong interaction between CNT surface and anti-oxidant molecules. Particularly, these interactions cause the formation of structural defects onto outer CNT surfaces, which, in turn, increase the CNT radical scavenging activity.

Immobilization of natural anti-oxidants on carbon nanotubes and aging behavior of ultra-high molecular weight polyethylene-based nanocomposites / N. T., Dintcheva; R., Arrigo; C., Gambarotti; M., Guenzi; S., Carroccio; F., Cicogna; Filippone, Giovanni. - 1599:(2014), pp. 102-105. (Intervento presentato al convegno 7th International Conference on Times of Polymers (TOP) and Composites tenutosi a Ischia (Italy) nel 22-26 giugno 2014) [10.1063/1.4876788].

Immobilization of natural anti-oxidants on carbon nanotubes and aging behavior of ultra-high molecular weight polyethylene-based nanocomposites

FILIPPONE, GIOVANNI
2014

Abstract

The use of natural antioxidants is an attractive way to formulate nanocomposites with extended durability and with potential applications in bio-medical field. In this work, Vitamin E (VE) in the form of α-tocopherol and Quercetin (Q) are physically immobilized on the outer surface of multi-walled carbon nanotubes (CNTs). Afterward, the CNTs-VE and CNTs-Q are used to formulate thermally stable ultra high molecular weight polyethylene based nanocomposites. The obtained results in the study of the thermo-oxidation behavior suggest a beneficial effect of the natural anti-oxidant carbon nanotubes systems. The unexpected excellent thermo-resistance of the nanocomposites seems to be due to a synergistic effect of the natural anti-oxidant and carbon nanotubes, i.e. strong interaction between CNT surface and anti-oxidant molecules. Particularly, these interactions cause the formation of structural defects onto outer CNT surfaces, which, in turn, increase the CNT radical scavenging activity.
2014
9780735412330
Immobilization of natural anti-oxidants on carbon nanotubes and aging behavior of ultra-high molecular weight polyethylene-based nanocomposites / N. T., Dintcheva; R., Arrigo; C., Gambarotti; M., Guenzi; S., Carroccio; F., Cicogna; Filippone, Giovanni. - 1599:(2014), pp. 102-105. (Intervento presentato al convegno 7th International Conference on Times of Polymers (TOP) and Composites tenutosi a Ischia (Italy) nel 22-26 giugno 2014) [10.1063/1.4876788].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/591296
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