This study presents the design, development, and calibration of a cost-effective electrospinning device for the fabrication of nanofibers. Electro-spinning is a method which uses a high voltage electric field to charge polymer solution and eject towards the grounded collector to produce nano-fibers. The primary focus of this research is on optimizing the electrospinning parameters to manufacture homogeneous nanofibers with minimal defects. A significant innovation in this study is the construction of a custom electrospinning device, mainly incorporating a single-axis syringe pump and a rotating drum collector. The instrument can control the solution flow rate, rotating speed of the collector drum and safety options of the instrument are also included. The instrument was tested using Polyvinyl Alcohol (PVA) and Polycaprolactone (PCL) polymers, as well as their composites with Graphene Oxide (GO), that can impart mechanical and barrier property enhancement in the nanofiber. The nanofibers produced were analyzed using SEM and Raman spectroscopy to assess their morphological and structural properties. The mean diameters of the fabricated nanofibers were 200±60 nm, 170±70 nm, 440±110 nm, 140±70 nm for PVA, PVA/GO, PCL, and PCL/GO respectively, which indicates the successful fabrication of nanofibers comparable to those produced by high-cost commercially available electrospinning devices. Through mechanical enhancement and chemical functionalization, we propose that these nanofibers and their composites will be used for applications in textile and packaging industries.

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Production of Nanofibers Using an In-House Built Electrospinning Device

  • H. D. Ravindu Lakshan,
  • Gimhani Wickramasinghe,
  • K. R. Jaliya Manuda,
  • Buddini Nissanka,
  • Mahendra Fernando,
  • Dilushan R. Jayasundara

摘要

This study presents the design, development, and calibration of a cost-effective electrospinning device for the fabrication of nanofibers. Electro-spinning is a method which uses a high voltage electric field to charge polymer solution and eject towards the grounded collector to produce nano-fibers. The primary focus of this research is on optimizing the electrospinning parameters to manufacture homogeneous nanofibers with minimal defects. A significant innovation in this study is the construction of a custom electrospinning device, mainly incorporating a single-axis syringe pump and a rotating drum collector. The instrument can control the solution flow rate, rotating speed of the collector drum and safety options of the instrument are also included. The instrument was tested using Polyvinyl Alcohol (PVA) and Polycaprolactone (PCL) polymers, as well as their composites with Graphene Oxide (GO), that can impart mechanical and barrier property enhancement in the nanofiber. The nanofibers produced were analyzed using SEM and Raman spectroscopy to assess their morphological and structural properties. The mean diameters of the fabricated nanofibers were 200±60 nm, 170±70 nm, 440±110 nm, 140±70 nm for PVA, PVA/GO, PCL, and PCL/GO respectively, which indicates the successful fabrication of nanofibers comparable to those produced by high-cost commercially available electrospinning devices. Through mechanical enhancement and chemical functionalization, we propose that these nanofibers and their composites will be used for applications in textile and packaging industries.