Multiferroic PVDF–Fe<sub>3</sub>O<sub>4</sub>hybrid films with reduced graphene oxide and ZnO nanofillers

Abdelhamid, Ehab; Jayakumar, O. D.; Kotari, Vasundhara; Mandal, Balaji P.; Rao, Rekha; Naik, V. M.; Naik, R.; Tyagi, A. K.

doi:10.1039/c5ra26983k

Cited by 54 publications

(43 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Neat GnP showed G band at 1587 cm −1 corresponding to the first‐order scattering of the E 2 g vibration mode, D band at 1339 cm −1 arising from the breathing mode of the j‐point phonons of A 1 g symmetry . Raman spectrum of PVDF(1.5 GnP) is dominated by the characteristic G and D band of GnP and also α‐phase band at 795 cm −1 . As can be seen, the G band of GnP shifted from 1587 to 1598 cm −1 which was attributed to the charge‐transfer interaction between the aromatic structure of GnP and fluorine groups of the PVDF, named F–C bonding .…”

Section: Resultsmentioning

confidence: 90%

Conductive poly(vinylidene fluoride)/polyethylene/graphene blend‐nanocomposites: Relationship between rheology, morphology, and electrical conductivity

Rafeie

Aghjeh

Tavakoli

et al. 2018

J of Applied Polymer Sci

View full text Add to dashboard Cite

Relationship between rheology, morphology, and electrical conductivity of the poly(vinylidene fluoride)/polyethylene/graphene nano-platelets ternary system (PVDF/PE/GnP) were investigated. All the blend nanocomposites were prepared via a two-step melt mixing method. GnP (0.75 and 1.5 wt %) was first compounded with PVDF and then the resulted premixtuers were melt mixed with PE to achieve the desired compositions. The corresponding reference nanocomposites and filler-less blends were also prepared. Effect of an interfacial agent (PEMA; maleic anhydride grafted polyethylene) was also studied in this work. The results of rheological analysis in conjunction with the Raman spectroscopy experiments revealed that GnP had higher affinity to PVDF than PE, which in turn led to creation of conductive networks of GnP (1.5 wt %) in PVDF matrix exhibiting the electrical conductivity of about 10 22 (S/cm). Double percolated micro-structure was predicted for the PE/PVDF 40/60 (wt/wt) blend containing low GnP content (0.9 wt %) and confirmed via direct electron microscopy and conductivity analysis. Using 5 wt % of the PEMA reduced the conductivity to 10 25 (S/cm) and further increase in PEMA content to 10 wt % led to non-conductive characteristics. The latter was attributed to the migration of GnP from the PVDF phase to PE/PEMA phase and hence disturbance of double percolated micro-structure. V C 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46333.

show abstract

Section: Resultsmentioning

confidence: 90%

Conductive poly(vinylidene fluoride)/polyethylene/graphene blend‐nanocomposites: Relationship between rheology, morphology, and electrical conductivity

Rafeie

Aghjeh

Tavakoli

et al. 2018

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…In 2016, Abdelhamid et al . prepared self‐standing flexible PVDF composite films containing hybrid fillers (comprising rGO, ZnO, and Fe 3 O 4 nanoparticles) and investigated their dielectric behavior with respect to the filler type.…”

Section: Piezoelectric Polymers: a Productive Alternative To Piezo‐cementioning

confidence: 99%

Advances in Piezoelectric Polymer Composites for Energy Harvesting Applications: A Systematic Review

Mishra

Unnikrishnan

Nayak

et al. 2018

Macro Materials & Eng

373

293

View full text Add to dashboard Cite

Polymeric piezoelectric composites for energy harvesting applications are considered a significant research field which provides the convenience of mechanical flexibility, suitable voltage with sufficient power output, lower manufacturing cost, and rapid processing compared to ceramic‐based composites. This review focuses majorly on the basic theory and principles behind piezoelectric energy harvesting (PEH) devices, followed by specified materials used for the different devices. Different structural configurations associated with fabrication of PEH devices are discussed in detail along with their major advantages and drawbacks. Numerous classes of piezoelectric polymers such as polyvinylidene fluoride, polylactic acid, cellulose, polyamides, polyurea, polyurethanes, and their composites used for energy harvesting applications as a productive alternative of lead‐based piezo‐ceramics, are extensively addressed and explored. Additionally, current global and Indian scenarios associated with PEH devices, major challenges associated with them, and the future perspective of such devices are also reported in this review.

show abstract

“…The oxygen functional groups on the surface of GO or reduced graphene oxide (RGO) can interact with the -CF 2 in PVDF via electrostatic interaction and/or hydrogen bonding, thereby beneting the nucleation of ferroelectric gor bphase. 174,175 With a solvent casting route, approximately 100% of the polar ferroelectric b-phase was formed in PVDF/GO lms with a 0.1 wt% GO content, 175 and 80% of b-phase formed in PVDF/ RGO lms, 176 which led to enhanced mechanical properties, relative permittivity and electric polarization. However, PVDF/ graphene nanocomposites oen suffer from higher dielectric loss and lower breakdown strength compared to composites employing insulating piezoelectric ceramics, this is due to the presence of high electric elds in the composite due the presence of electrically conductive ller.…”

Section: Structure Of Polyvinylidene Uoride (Pvdf) and Polymorphsmentioning

confidence: 99%

Multiscale-structuring of polyvinylidene fluoride for energy harvesting: the impact of molecular-, micro- and macro-structure

2017

View full text Add to dashboard Cite

show abstract

Multiferroic PVDF–Fe₃O₄hybrid films with reduced graphene oxide and ZnO nanofillers

Abstract: Flexible and self-standing polyvinylidene fluoride (PVDF) films loaded with nanofillers, reduced graphene oxide (RGO), zinc oxide (ZnO) and magnetic iron oxide (Fe3O4) nanoparticles, were prepared by a solvent casting method.

Cited by 54 publications

References 47 publications

Conductive poly(vinylidene fluoride)/polyethylene/graphene blend‐nanocomposites: Relationship between rheology, morphology, and electrical conductivity

Conductive poly(vinylidene fluoride)/polyethylene/graphene blend‐nanocomposites: Relationship between rheology, morphology, and electrical conductivity

Advances in Piezoelectric Polymer Composites for Energy Harvesting Applications: A Systematic Review

Multiscale-structuring of polyvinylidene fluoride for energy harvesting: the impact of molecular-, micro- and macro-structure

Contact Info

Product

Resources

About

Multiferroic PVDF–Fe3O4hybrid films with reduced graphene oxide and ZnO nanofillers

Abstract: Flexible and self-standing polyvinylidene fluoride (PVDF) films loaded with nanofillers, reduced graphene oxide (RGO), zinc oxide (ZnO) and magnetic iron oxide (Fe3O4) nanoparticles, were prepared by a solvent casting method.

Cited by 54 publications

References 47 publications

Conductive poly(vinylidene fluoride)/polyethylene/graphene blend‐nanocomposites: Relationship between rheology, morphology, and electrical conductivity

Conductive poly(vinylidene fluoride)/polyethylene/graphene blend‐nanocomposites: Relationship between rheology, morphology, and electrical conductivity

Advances in Piezoelectric Polymer Composites for Energy Harvesting Applications: A Systematic Review

Multiscale-structuring of polyvinylidene fluoride for energy harvesting: the impact of molecular-, micro- and macro-structure

Contact Info

Product

Resources

About

Multiferroic PVDF–Fe₃O₄hybrid films with reduced graphene oxide and ZnO nanofillers