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Poly (vinylidene fluoride)(PVDF) is an easy processable and electroactive polymer, widely investigated for the preparation of electrospun membranes for triboelectric nanogenerators (TENG). The presence of graphene oxide (GO) fillers into the PVDF nanofibers, used as electroactive membranes in TENGs, has been reported to improve their performances as GO can act as charge trapping site. Nevertheless, the addition of GO also affects the dielectric and rheological properties of the spinning dispersions and the role of such parameters on the nanofiber morphology has not been clarified yet. In this work, we investigated the effect of GO on the electrospinning process of PVDF–GO dispersions. In particular, we found that the addition of GO in PVDF solutions modifies their rheological properties by increasing their viscosity and enhancing their shear thinning behavior. Consequently, compared to the PVDF solution …
Springer Nature
Publication date: 
4 Nov 2020

Vincenzo Palermo Claudio Gasparini, Annalisa Aluigi, Giuseppina Pace, Miguel A. Molina-García, Emanuele Treossi, Giampiero Ruani, Andrea Candini, Manuela Melucci, Cristian Bettin, Francesco Bonaccorso, Andrea Liscio

Biblio References: 
Volume: 5 Pages: 49–57
Graphene Technology