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<p>In this work, PVC/TiO<sub>2</sub> nanocomposites based on polyvinyl chloride (PVC) reinforced with titanium dioxide (TiO<sub>2</sub>) nanoparticles were successfully fabricated using the solution casting method. The structural, surface, and electrical properties of the prepared films were systematically investigated before and after ion-beam irradiation using a cold cathode argon ion source. Various characterization techniques, including transmission electron microscope (TEM), scanning electron microscope (SEM), energy-dispersive X-ray spectroscopy (EDX), contact angle, and electrical conductivity measurements, were employed. The obtained results confirmed the successful incorporation and homogeneous distribution of TiO<sub>2</sub> nanoparticles within the PVC matrix. The electrical behavior of the films was examined over a frequency range from 10 Hz to 6 MHz, where the electrical conductivity increased from 7.72 × 10<sup>−13</sup> S/cm for pure PVC to 17.22 × 10<sup>−13</sup> S/cm for PVC/4.5%TiO<sub>2</sub>. In addition, the surface properties of the composite films were assessed through contact angle and surface free energy measurements. The surface free energy increased from 38.30 to 50.07&#xa0;mJ/m<sup>2</sup>, while the water contact angle decreased from 72.30 to 59.47° as the ion fluence increased from 4 × 10<sup>1</sup>⁶ ions·cm<sup>−2</sup> to 12 × 10<sup>1</sup>⁶ ions·cm<sup>−2</sup>. These findings indicate that the irradiated PVC/TiO<sub>2</sub> nanocomposite films exhibit enhanced electrical and surface characteristics, making them promising candidates for flexible electronic applications.</p>

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Fabrication, electrical conductivity, and surface characterization of ion-beam-irradiated PVC/TiO2 nanocomposite films

  • 期刊论文

  • 发表日期：

    2026年7月10日

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  • A. Atta,
  • Reem Altuijri,
  • Nuha Al-Harbi,
  • E. Abdeltwab,
  • M. A. Salama

摘要

In this work, PVC/TiO2 nanocomposites based on polyvinyl chloride (PVC) reinforced with titanium dioxide (TiO2) nanoparticles were successfully fabricated using the solution casting method. The structural, surface, and electrical properties of the prepared films were systematically investigated before and after ion-beam irradiation using a cold cathode argon ion source. Various characterization techniques, including transmission electron microscope (TEM), scanning electron microscope (SEM), energy-dispersive X-ray spectroscopy (EDX), contact angle, and electrical conductivity measurements, were employed. The obtained results confirmed the successful incorporation and homogeneous distribution of TiO2 nanoparticles within the PVC matrix. The electrical behavior of the films was examined over a frequency range from 10 Hz to 6 MHz, where the electrical conductivity increased from 7.72 × 10−13 S/cm for pure PVC to 17.22 × 10−13 S/cm for PVC/4.5%TiO2. In addition, the surface properties of the composite films were assessed through contact angle and surface free energy measurements. The surface free energy increased from 38.30 to 50.07 mJ/m2, while the water contact angle decreased from 72.30 to 59.47° as the ion fluence increased from 4 × 101⁶ ions·cm−2 to 12 × 101⁶ ions·cm−2. These findings indicate that the irradiated PVC/TiO2 nanocomposite films exhibit enhanced electrical and surface characteristics, making them promising candidates for flexible electronic applications.