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Effects of ion beam on the electrical conductivity and surface characteristics of flexible PVA/TiO2 polymeric nanocomposites films.

Author name : MOHAMED RAMADAN ABDELMEGID ELAASSAR
Publication Date : 2024-06-12
Journal Name : Digest Journal of Nanomaterials and Biostructures

Abstract

The present research examined the impacts of oxygen beam bombardment on PVA/TiO2 composites using cold cathode source with fluencies (3×1016, 6×1016 and 9×1016 ions/cm2). The X-ray diffraction (XRD) is verified the successful fabrication of PVA/TiO2 composites. In addition, surface free energy, work of adhesion, and contact angles were evaluated for both pure and treated PVA/TiO2 films. The drop in water contact angle from 68.37º to 52.12º was caused by an increase in ion beam fluence from 3×1016 ions/cm2 to 9×1016 ions/cm2. And the surface energy increases from 41.45 to 55.97 mJ/m2, with a rise in the adhesion work from 98.75 mJ/m2 to 116.33 mJ/m2. In addition, the electrical conductivity of PVA/TiO2 was measured within the frequency range of 50-106 Hz. After the samples subjected to 9×1016 ions/cm2, the conductivity of the PVA/TiO2 composite rose from 0.32×10-6 to 4.3×10-6 S/cm. The outcomes data showed that the electrical conductivity of the irradiated films were improved, which is important for different devices such batteries and supercapacitors.

Keywords

Polymer composite, Irradiation, Surface modifications, Material characterization

Publication Link

https://doi.org/10.15251/DJNB.2024.192.941

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