Self-assembling of reduced graphene oxide (RGO) and graphene oxide (GO) platelets, as a tailored interconnected network within natural rubber and butyl rubber matrices, is proposed as a mean for obtaining nanocomposites with significantly enhanced functional properties as compared to unloaded rubber, i.e. gas barrier properties and electric conductivity, even at very low filler contents. Interestingly, the prescribed spatial arrangement of the nanoparticles ('segregated arrangement') results to be much more effective in improving properties than homogeneous dispersion ('not segregated' arrangement) of platelets, even at low loadings. The 'segregated' structure originates from the confinement of platelets within the interstices of the coagulated latex particles, which act as a template for the network formation. The platelets are assembled on the latex particles giving rise to spheres with a core-shell structure, with a partial or complete covering depending on graphene amount. Conversely, the 'not-segregated' structure is obtained by destroying this interconnected network by further processing the nanocomposite masterbatch via twin-roll mixing, thus determining a uniform orientation of exfoliated platelets.

Controlling the assembly of graphene based nanosheets within a rubber matrix: Nanocomposite morphology probed by measuring gas permeation and dielectric properties / Scherillo, Giuseppe; Lavorgna, Marino; SALZANO DE LUNA, Martina; Filippone, Giovanni; Buonocore, Giovanna; Xia, H.; Zhan, Y.; Mensitieri, Giuseppe. - 1736:(2016), p. 020066. (Intervento presentato al convegno 8th International Conference on Times of Polymers and Composites: From Aerospace to Nanotechnology tenutosi a ita nel 2016) [10.1063/1.4949641].

Controlling the assembly of graphene based nanosheets within a rubber matrix: Nanocomposite morphology probed by measuring gas permeation and dielectric properties

SCHERILLO, GIUSEPPE;LAVORGNA, Marino;SALZANO DE LUNA, MARTINA;FILIPPONE, GIOVANNI;BUONOCORE, GIOVANNA;MENSITIERI, GIUSEPPE
2016

Abstract

Self-assembling of reduced graphene oxide (RGO) and graphene oxide (GO) platelets, as a tailored interconnected network within natural rubber and butyl rubber matrices, is proposed as a mean for obtaining nanocomposites with significantly enhanced functional properties as compared to unloaded rubber, i.e. gas barrier properties and electric conductivity, even at very low filler contents. Interestingly, the prescribed spatial arrangement of the nanoparticles ('segregated arrangement') results to be much more effective in improving properties than homogeneous dispersion ('not segregated' arrangement) of platelets, even at low loadings. The 'segregated' structure originates from the confinement of platelets within the interstices of the coagulated latex particles, which act as a template for the network formation. The platelets are assembled on the latex particles giving rise to spheres with a core-shell structure, with a partial or complete covering depending on graphene amount. Conversely, the 'not-segregated' structure is obtained by destroying this interconnected network by further processing the nanocomposite masterbatch via twin-roll mixing, thus determining a uniform orientation of exfoliated platelets.
2016
9780735413900
9780735413900
Controlling the assembly of graphene based nanosheets within a rubber matrix: Nanocomposite morphology probed by measuring gas permeation and dielectric properties / Scherillo, Giuseppe; Lavorgna, Marino; SALZANO DE LUNA, Martina; Filippone, Giovanni; Buonocore, Giovanna; Xia, H.; Zhan, Y.; Mensitieri, Giuseppe. - 1736:(2016), p. 020066. (Intervento presentato al convegno 8th International Conference on Times of Polymers and Composites: From Aerospace to Nanotechnology tenutosi a ita nel 2016) [10.1063/1.4949641].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/642840
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