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<p>This study employed a multifactorial analysis, varying Alumina concentration, spinning distance, and applied voltage, to fabricate polyvinyl alcohol/Alumina nanocomposite mats via electrospinning, with the aim of controlling and optimizing fiber thickness. A two-factor interaction model was identified as the best fit for the data, achieving a high coefficient of determination (R² = 0.98). The morphological characteristics of the electrospun mats were assessed through scanning electron microscopy to measure the average fiber diameter (AFD) for each mat. Results indicated that applied voltage has the most pronounced effect on AFD, with fiber diameter decreasing as voltage increases. According to the model, the optimal conditions for producing the thinnest fibers are an Alumina concentration of 1.9%, a spinning distance of 19&#xa0;cm, and a voltage of 25&#xa0;kV. Under these conditions, the predicted and actual AFD values were 186&#xa0;nm and 178&#xa0;nm, respectively, demonstrating correlation accuracy within acceptable error margins. Fibers prepared under optimal conditions were further characterized using TEM/EDX, FTIR, XRD, biocompatibility testing, and contact angle measurements. These analyses revealed that incorporating Alumina enhances the hydrophobicity and water resistance of electrospun PVA fibers.</p> Graphical abstract <p></p>

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Preparation, optimization, and characterization of electrospun PVA/Alumina nanocomposite fibers using response surface methodology

  • 期刊论文

  • 发表日期：

    2025年4月30日

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  • Mohamad Ibrahim,
  • Eugene S. Statnik,
  • Iuliia A. Sadykova,
  • Polina Kovaleva,
  • Artem Korol,
  • Leonid Olifirov,
  • Sergey Zhevnenko,
  • Alexander A. Golubnichiy,
  • Anatole N. Khodan,
  • Ivan A. Stafeev,
  • Alexey I. Salimon,
  • Alexander M. Korsunsky

摘要

This study employed a multifactorial analysis, varying Alumina concentration, spinning distance, and applied voltage, to fabricate polyvinyl alcohol/Alumina nanocomposite mats via electrospinning, with the aim of controlling and optimizing fiber thickness. A two-factor interaction model was identified as the best fit for the data, achieving a high coefficient of determination (R² = 0.98). The morphological characteristics of the electrospun mats were assessed through scanning electron microscopy to measure the average fiber diameter (AFD) for each mat. Results indicated that applied voltage has the most pronounced effect on AFD, with fiber diameter decreasing as voltage increases. According to the model, the optimal conditions for producing the thinnest fibers are an Alumina concentration of 1.9%, a spinning distance of 19 cm, and a voltage of 25 kV. Under these conditions, the predicted and actual AFD values were 186 nm and 178 nm, respectively, demonstrating correlation accuracy within acceptable error margins. Fibers prepared under optimal conditions were further characterized using TEM/EDX, FTIR, XRD, biocompatibility testing, and contact angle measurements. These analyses revealed that incorporating Alumina enhances the hydrophobicity and water resistance of electrospun PVA fibers.

Graphical abstract