Piezo-resistive properties of graphene based PVDF composite films for strain sensing
04 Pubblicazione in atti di convegno
Bidsorkhi Hossein Cheraghi, D'Aloia Alessandro G., Tamburrano Alessio, De Bellis Giovanni, Bracciale Maria P., Santarelli Maria L., Sarto Maria Sabrina
Graphene based polyvinylidene fluoride (PVDF)composite films have been produced and characterized in orderto investigate their piezo-resistive properties. To this purpose, anew production process has been developed, with the aim offabricating at low cost PVDF films filled with graphenenanoplatelets (GNPs). The produced films, having a GNPcontent of 1.5%wt and 2% wt, have been characterized frommorpholocial and chemical points of view. Moreover, theirpiezo-resistive properties have been investigated both in staticand cyclic conditions. The produced films show a stable andrepeatable response to the applied strain. A sensitivity of 15 hasbeen measured for the PVDF/GNP film filled at 1.5% wt,corresponding to an applied strain of 1.5%