Archivio Istituzionale della RicercaA transparent, water vapor barrier film made of an epoxy resin and graphene oxide (GO) was synthesized by photopolymerization process. The epoxy/GO film with just 0.05 wt% GO gives a 93% WVTR reduction with respect to the pristine polymer, reaching barrier properties better than other polymer composites containing higher amounts of graphene. The excellent water vapor barrier is attributed to the good dispersion of GO in the polymer matrix. Moreover, GO significantly enhances the toughness and the damping capacity of the epoxy resins. The hybrid film can have potential applications in anticorrosive coatings, electronic devices, pharmaceuticals and food packaging.
Photocured epoxy/graphene nanocomposites with enhanced water vapor barrier properties / Periolatto, M.; Sangermano, M.; Spena, P. Russo. - ELETTRONICO. - (2016). (Intervento presentato al convegno 8th International Conference on Times of Polymers and Composites: From Aerospace to Nanotechnology tenutosi a ita nel 2016) [10.1063/1.4949619].
Photocured epoxy/graphene nanocomposites with enhanced water vapor barrier properties
Periolatto, M.;Sangermano, M.;Spena, P. Russo
2016
Abstract
A transparent, water vapor barrier film made of an epoxy resin and graphene oxide (GO) was synthesized by photopolymerization process. The epoxy/GO film with just 0.05 wt% GO gives a 93% WVTR reduction with respect to the pristine polymer, reaching barrier properties better than other polymer composites containing higher amounts of graphene. The excellent water vapor barrier is attributed to the good dispersion of GO in the polymer matrix. Moreover, GO significantly enhances the toughness and the damping capacity of the epoxy resins. The hybrid film can have potential applications in anticorrosive coatings, electronic devices, pharmaceuticals and food packaging.
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https://hdl.handle.net/11583/2709936
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