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<p>This present investigation reports the measurement of thermally stimulated discharge current and contact angle to understand the role of surface properties in thermal relaxation in nanocomposite samples. The polysulfone (PSF)–ZnO nanocomposites thin film of thickness 40&#xa0;µm was prepared by a solution-mixing method. TSDC is not only used to study the fine structure of polymeric materials, but it is an important technique for fine structure investigation of both solid polymers and additives of PSF nanocomposites, which were recorded at room temperature and 60&#xa0;°C with different values of DC field. The nature of relaxation mechanisms in PSF nanocomposite was observed by the measurement of discharge current after polarization by DC field. The single relaxation peak was observed at around 180&#xa0;°C. The high-temperature peak is associated with MWS relaxation mechanism. The PSF nanocomposite had mass ratio proportion of 3, 5, and 10 where the comparison of surface properties was made between the nanocomposites and the pure PSF.</p>

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Investigation of thermally stimulated discharge current and surface properties of polysulfone–ZnO nanocomposites

  • 期刊论文

  • 发表日期：

    2025年11月14日

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  • Pramod Kumar Singh,
  • Vikas Rathour,
  • Mukesh Kumar Roy,
  • M. S. Gaur

摘要

This present investigation reports the measurement of thermally stimulated discharge current and contact angle to understand the role of surface properties in thermal relaxation in nanocomposite samples. The polysulfone (PSF)–ZnO nanocomposites thin film of thickness 40 µm was prepared by a solution-mixing method. TSDC is not only used to study the fine structure of polymeric materials, but it is an important technique for fine structure investigation of both solid polymers and additives of PSF nanocomposites, which were recorded at room temperature and 60 °C with different values of DC field. The nature of relaxation mechanisms in PSF nanocomposite was observed by the measurement of discharge current after polarization by DC field. The single relaxation peak was observed at around 180 °C. The high-temperature peak is associated with MWS relaxation mechanism. The PSF nanocomposite had mass ratio proportion of 3, 5, and 10 where the comparison of surface properties was made between the nanocomposites and the pure PSF.