Fabrication, Structural Properties, and Electrical Characterization of Polymer Nanocomposite Materials for Dielectric Applications

• Published in: Polymers Vol. 15; no. 14; p. 3067
• Main Authors: Atta, Ali, Alotiby, Mohammed F, Al-Harbi, Nuha, El-Aassar, Mohamed R, Uosif, Mohamed A M, Rabia, Mohamed
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 17.07.2023; MDPI
• Subjects: Atomic force microscopy; Chitosan; Computer storage devices; Dielectric properties; Electric properties; electrical; Electrical impedance; Electrical properties; Electrical resistivity; Electronic circuits; energy applications; Energy storage; fabrication; Fourier transforms; Frequency ranges; Hydrogen bonds; Infrared spectroscopy; Investigations; Mechanical properties; Molecular weight; Nanocomposites; Nanoparticles; Permittivity; Photovoltaic cells; Polymers; Polyvinyl alcohol; Scanning electron microscopy; structural; Structural analysis; Technology application; Titanium dioxide; Titanium oxides; Water purification; X-ray diffraction; Japan; energy applications; electrical; structural; nanocomposites; fabrication
• ISSN: 2073-4360; 2073-4360
• DOI: 10.3390/polym15143067

This research paper aims to fabricate flexible PVA/Cs/TiO nanocomposite films consisting of polyvinyl alcohol (PVA), chitosan (Cs), and titanium oxide (TiO ) for application in energy storage devices. The samples were analyzed using X-ray diffraction (XRD), atomic force microscope (AFM), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and energy dispersive X-ray (EDX) techniques. The impact of TiO on the electrical impedance, conductivity, permittivity, and energy efficiency of the PVA/Cs was determined in a frequency range of 100 Hz to 5 GHz. The XRD, FTIR, and EDX results showed the successful fabrications of the PVA/Cs/TiO . The SEM and AFM images illustrated that the TiO was loaded and distributed homogenously in PVA/Cs chains. In addition, the electrical conductivity was enhanced from 0.04 × 10 S.cm of PVA/Cs to 0.25 × 10 S.cm and 5.75 × 10 S.cm , respectively, for the composite PVA/Cs/0.01TiO and PVA/Cs/0.1TiO , and the dielectric constant grew from 2.46 for PVA/Cs to 7.38 and 11.93, respectively. These results revealed that modifications were made to the produced films, paving the way for using the composite PVA/Cs/TiO films in different energy applications, such as electronic circuits and supercapacitors.