THERMOPHYSICAL, DIELECTRIC AND CONDUCTIVITY PROPERTIES OF PLASMA-MODIFIED COMPOSITES BASED ON PVDF DISPERSED WITH BaTiO3 PARTICLES
I.S. Ramazanova, G.Kh. Guseynova, U.V. Yusifova, T.D. Ibragimov, A.F. Nuraliyev, F.F. Yahyayev,
2024   03   en   p.20-28

ABSTRACT

The effect of barrier electric discharge plasma on thermophysical, dielectric and conductive properties of PVDF+BaTiO3 based composite has been studied. It is shown that the enthalpy and entropy of melting and solidification decrease sharply when the filler is included, and a relative increase is observed at a concentration of 20%. At the other concentrations, however, except at 10% and 30%, these physical quantities decrease after exposure to barrier electric discharge plasma. This increase is negligible for pure polyvinylidene fluoride but significant for composites. Also the dielectric permittivity increases with increasing concentration. It is shown that the conductivity first increases with increasing filler concentration, reaches a maximum at 20% concentration and then decreases. After exposure to barrier electric discharge plasma, the dielectric permittivity and conductivity decrease.

Keywords: barium titanate, polyvinylidene fluoride, dielectric permittivity; electric conductivity, composite material.
PACS: 77.55.+f , 77.84._s , 77.84.Dy, 77.84.Lf, 81.07.Pr , 82.35.Np

DOI:-

Received: 17.07.2024
Internet publishing: 14.08.2024

AUTHORS & AFFILIATIONS

Institute of Physics Ministry of Science and Education Republic of Azerbaijan, 131 H.Javid ave, Baku, AZ-1143, Azerbaijan
E-mail: irada-sultanakhmedova@rambler.ru

Graphics and Images

                                             

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