FUNCTIONAL PROPERTIES OF PVDF-BASED NZF-BT FLEXIBLE FILMS
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2022
Authors
Grigalaitis, RobertasSalasevicius, R.
Banys, Juras
Vijatović Petrović, Mirjana

Džunuzović, Adis

ZAGHETE, MARIA
Ferreira Teixeira, Guilhermina
Stojanović, Biljana D
Article (Published version)

Lietuvos mokslų akademija
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Flexible multiferroic composite films are perspective materials for sensors, actuators and similar com-ponents of wearable and stretchable devices. Here we present the study of functional properties of flexible composites prepared by embedding nickel zinc ferrite and barium titanate powder into polyvinylidene fluo-ride (PVDF) polymer optimizing the ratio of polymer and fillers to get the best flexibility and functionality. ATR-FTIR analysis revealed that hot pressing of the flexible films causeda transformation of about 38% of the electro-inactive PVDF α phase into electrically active β and γ phases. Broadband dielectric spectroscopy revealed two relaxation processes responsible for PVDF and space charge relaxations. Activation energies of both processes and the freezing temperature of PVDF to the glass phase were estimated for all films. Ferroelectric measurements have shown unsaturated hysteresis loops for all samples, although the clear dependence of t...he amount of the electrically active phase on polarization values of composites is visible.
Keywords:
composites / flexible films / ferroelectric properties / dielectric dispersionSource:
Lithuanian Journal of Physics, 2022, 62, 4, 195-204Publisher:
- Lietuvos mokslų akademija
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Institut za multidisciplinarna istraživanjaTY - JOUR AU - Grigalaitis, Robertas AU - Salasevicius, R. AU - Banys, Juras AU - Vijatović Petrović, Mirjana AU - Džunuzović, Adis AU - ZAGHETE, MARIA AU - Ferreira Teixeira, Guilhermina AU - Stojanović, Biljana D PY - 2022 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2104 AB - Flexible multiferroic composite films are perspective materials for sensors, actuators and similar com-ponents of wearable and stretchable devices. Here we present the study of functional properties of flexible composites prepared by embedding nickel zinc ferrite and barium titanate powder into polyvinylidene fluo-ride (PVDF) polymer optimizing the ratio of polymer and fillers to get the best flexibility and functionality. ATR-FTIR analysis revealed that hot pressing of the flexible films causeda transformation of about 38% of the electro-inactive PVDF α phase into electrically active β and γ phases. Broadband dielectric spectroscopy revealed two relaxation processes responsible for PVDF and space charge relaxations. Activation energies of both processes and the freezing temperature of PVDF to the glass phase were estimated for all films. Ferroelectric measurements have shown unsaturated hysteresis loops for all samples, although the clear dependence of the amount of the electrically active phase on polarization values of composites is visible. PB - Lietuvos mokslų akademija T2 - Lithuanian Journal of Physics T1 - FUNCTIONAL PROPERTIES OF PVDF-BASED NZF-BT FLEXIBLE FILMS EP - 204 IS - 4 SP - 195 VL - 62 DO - 10.3952/physics.v62i4.4825 ER -
@article{ author = "Grigalaitis, Robertas and Salasevicius, R. and Banys, Juras and Vijatović Petrović, Mirjana and Džunuzović, Adis and ZAGHETE, MARIA and Ferreira Teixeira, Guilhermina and Stojanović, Biljana D", year = "2022", abstract = "Flexible multiferroic composite films are perspective materials for sensors, actuators and similar com-ponents of wearable and stretchable devices. Here we present the study of functional properties of flexible composites prepared by embedding nickel zinc ferrite and barium titanate powder into polyvinylidene fluo-ride (PVDF) polymer optimizing the ratio of polymer and fillers to get the best flexibility and functionality. ATR-FTIR analysis revealed that hot pressing of the flexible films causeda transformation of about 38% of the electro-inactive PVDF α phase into electrically active β and γ phases. Broadband dielectric spectroscopy revealed two relaxation processes responsible for PVDF and space charge relaxations. Activation energies of both processes and the freezing temperature of PVDF to the glass phase were estimated for all films. Ferroelectric measurements have shown unsaturated hysteresis loops for all samples, although the clear dependence of the amount of the electrically active phase on polarization values of composites is visible.", publisher = "Lietuvos mokslų akademija", journal = "Lithuanian Journal of Physics", title = "FUNCTIONAL PROPERTIES OF PVDF-BASED NZF-BT FLEXIBLE FILMS", pages = "204-195", number = "4", volume = "62", doi = "10.3952/physics.v62i4.4825" }
Grigalaitis, R., Salasevicius, R., Banys, J., Vijatović Petrović, M., Džunuzović, A., ZAGHETE, M., Ferreira Teixeira, G.,& Stojanović, B. D.. (2022). FUNCTIONAL PROPERTIES OF PVDF-BASED NZF-BT FLEXIBLE FILMS. in Lithuanian Journal of Physics Lietuvos mokslų akademija., 62(4), 195-204. https://doi.org/10.3952/physics.v62i4.4825
Grigalaitis R, Salasevicius R, Banys J, Vijatović Petrović M, Džunuzović A, ZAGHETE M, Ferreira Teixeira G, Stojanović BD. FUNCTIONAL PROPERTIES OF PVDF-BASED NZF-BT FLEXIBLE FILMS. in Lithuanian Journal of Physics. 2022;62(4):195-204. doi:10.3952/physics.v62i4.4825 .
Grigalaitis, Robertas, Salasevicius, R., Banys, Juras, Vijatović Petrović, Mirjana, Džunuzović, Adis, ZAGHETE, MARIA, Ferreira Teixeira, Guilhermina, Stojanović, Biljana D, "FUNCTIONAL PROPERTIES OF PVDF-BASED NZF-BT FLEXIBLE FILMS" in Lithuanian Journal of Physics, 62, no. 4 (2022):195-204, https://doi.org/10.3952/physics.v62i4.4825 . .