Dielectric and Structural Properties of the Hybrid Material Polyvinylidene Fluoride-Bacterial Nanocellulose-Based Composite

Aleksandra Janićijević; Suzana Filipović; Aleksandra Sknepnek; Branislav Vlahović; Nenad Đorđević; Danijela Kovacević; Miljana Mirković; Ivan Petronijević; Predrag Zivković; Jelena Rogan; Vladimir B Pavlović

doi:10.3390/polym15204080

Dielectric and Structural Properties of the Hybrid Material Polyvinylidene Fluoride-Bacterial Nanocellulose-Based Composite

Polymers (Basel). 2023 Oct 13;15(20):4080. doi: 10.3390/polym15204080.

Affiliations

¹ The Academy of Applied Technical Studies Belgrade, 11000 Belgrade, Serbia.
² Institute of Technical Sciences of Serbian Academy of Sciences and Arts, 11000 Belgrade, Serbia.
³ Faculty of Agriculture, University of Belgrade, 11000 Belgrade, Serbia.
⁴ Department of Mathematics and Physics, North Carolina Central University, Durham, NC 27707, USA.
⁵ NASA University Research Center for Aerospace Device Research and Education, NSF Center of Research Excellence in Science, Technology Computational Center for Fundamental and Applied Science and Education, Durham, NC 27707, USA.
⁶ Department of Material Science, "VINČA" Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia.
⁷ Faculty of Physics, University of Belgrade, 11000 Belgrade, Serbia.
⁸ Faculty of Technology and Metallurgy, University of Belgrade, 11000 Belgrade, Serbia.

Abstract

In the search for environmentally friendly materials with a wide range of properties, polymer composites have emerged as a promising alternative due to their multifunctional properties. This study focuses on the synthesis of composite materials consisting of four components: bacterial nanocellulose (BNC) modified with magnetic Fe₃O₄, and a mixture of BaTiO₃ (BT) and polyvinylidene fluoride (PVDF). The BT powder was mechanically activated prior to mixing with PVDF. The influence of BT mechanical activation and BNC with magnetic particles on the PVDF matrix was investigated. The obtained composite films' structural characteristics, morphology, and dielectric properties are presented. This research provides insights into the relationship between mechanical activation of the filler and structural and dielectric properties in the PVDF/BT/BNC/Fe₃O₄ system, creating the way for the development of materials with a wide range of diverse properties that support the concept of green technologies.

Keywords: PVDF; bacterial nanocellulose (BNC); dielectric properties; laminate composite material; multiferroic.

Grants and funding

This work was supported by The Ministry of Science, Technological Development and Innovation of the Republic of Serbia (Contract No. 451-03-47/2023-01/200135), (Contract No. 451-03-47/2023-01/200116), (Contract No. 451-03-41/2023-01/200175), (Contract No. 451-03-47/2023-01/200017), (Contract No. 451-03-47/2023-01/200162), US National Science Foundation (Grant: DMR EiR 2101041, NSF DMR PREM 2122044), and the US Department of Energy/National Nuclear Security Administration (Grant: NA0003979).