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Synthesis, physical and magnetic properties of BaFe12O19/P(VDF-TrFE) multifunctional composites

Journal Article


Abstract


  • Composite films with filler microparticles of Barium ferrite BaFe12O19 (BaFO, 1–20 wt.%) dispersed within P(VDF-TrFE) acting as piezoelectric polymeric matrix have been prepared by solvent evaporation. SEM and TEM images in combination with magnetic measurements clearly probe the good dispersion and random distribution of the BaFO microparticles within the films. Young’s modulus of the fabricated composites remains almost unchanged for all filler contents, indicating that this acts as a small defect within the P(VDF-TrFE) matrix. On the contrary, dielectric properties clearly reduce for low filler contents, 1 and 5 wt.%, and recover and increase their values in a smooth and monotonous way for higher BaFO filler contents of 10 and 20 wt.%. This trend is not followed by the electrical conductivity. Additionally, we have extended the study to fibers composed of BaFe12O19 microparticles within a PVDF matrix. Due to the big size of BaFO particles (about 1 μm in diameter), a proper fabrication of the fiber shaped composites has not been achieved. We found that true BaFO content are always lower than nominal ones. Results are discussed in terms of the influence of size and morphology of the BaFO particles on the initial properties of the pure polymeric matrix.

UOW Authors


  •   Gutiérrez, J. (external author)
  •   Martins, P (external author)
  •   Goncalves, R (external author)
  •   Gomes da Silva Sencadas, Vitor
  •   Lasheras, A. (external author)
  •   Lanceros-Méndez, Senentxu (external author)
  •   Barandiarán, J. M. (external author)

Publication Date


  • 2015

Citation


  • Gutiérrez, J., Martins, P., Goncalves, R., Sencadas, V., Lasheras, A., Lanceros-Mendez, S. & Barandiarán, J. M. (2015). Synthesis, physical and magnetic properties of BaFe12O19/P(VDF-TrFE) multifunctional composites. European Polymer Journal, 69 224-231.

Scopus Eid


  • 2-s2.0-84930941216

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 224

End Page


  • 231

Volume


  • 69

Place Of Publication


  • United Kingdom

Abstract


  • Composite films with filler microparticles of Barium ferrite BaFe12O19 (BaFO, 1–20 wt.%) dispersed within P(VDF-TrFE) acting as piezoelectric polymeric matrix have been prepared by solvent evaporation. SEM and TEM images in combination with magnetic measurements clearly probe the good dispersion and random distribution of the BaFO microparticles within the films. Young’s modulus of the fabricated composites remains almost unchanged for all filler contents, indicating that this acts as a small defect within the P(VDF-TrFE) matrix. On the contrary, dielectric properties clearly reduce for low filler contents, 1 and 5 wt.%, and recover and increase their values in a smooth and monotonous way for higher BaFO filler contents of 10 and 20 wt.%. This trend is not followed by the electrical conductivity. Additionally, we have extended the study to fibers composed of BaFe12O19 microparticles within a PVDF matrix. Due to the big size of BaFO particles (about 1 μm in diameter), a proper fabrication of the fiber shaped composites has not been achieved. We found that true BaFO content are always lower than nominal ones. Results are discussed in terms of the influence of size and morphology of the BaFO particles on the initial properties of the pure polymeric matrix.

UOW Authors


  •   Gutiérrez, J. (external author)
  •   Martins, P (external author)
  •   Goncalves, R (external author)
  •   Gomes da Silva Sencadas, Vitor
  •   Lasheras, A. (external author)
  •   Lanceros-Méndez, Senentxu (external author)
  •   Barandiarán, J. M. (external author)

Publication Date


  • 2015

Citation


  • Gutiérrez, J., Martins, P., Goncalves, R., Sencadas, V., Lasheras, A., Lanceros-Mendez, S. & Barandiarán, J. M. (2015). Synthesis, physical and magnetic properties of BaFe12O19/P(VDF-TrFE) multifunctional composites. European Polymer Journal, 69 224-231.

Scopus Eid


  • 2-s2.0-84930941216

Has Global Citation Frequency


Number Of Pages


  • 7

Start Page


  • 224

End Page


  • 231

Volume


  • 69

Place Of Publication


  • United Kingdom