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Abstract
Electrospinning is a simple method for producing ultrafine fibers, and has attracted much recent interest. The classical approach was either polymer solutions or polymer melts. Bubbfil spinning (e.g. bubble-electrospinning) is a facile method to fabricate nanofibers with high surface area to volume ratio and high porosity. Polyether sulfone (PES) dissolved in N,N-Dimethylacetamide (DMAC) was used in this study to compare fiber morphologies of two technologies at the same spinning conditions. Effects of solution concentration, applied voltage and tip-to-collector distance on the morphology of the fibers were experimentally studied. It revealed that the Bubbfil spinning process is a better candidate for mass-production of nanofiber with controllable morphology.
Highlights
The electrospinning process, invented by Formhals in 1934 [1], was widely studied on the whole world during the last decades [2,3]
A new approach was invented using polymer bubbles, which is a potential technology for mass-production of nano/micro-fibers, and it is termed as Bubbfil spinning technology [4]
Bubbfil spinning [4] is developed from the bubble-electrospinning [5,6,7], blown-bubble spinning [8], and membrane spinning [9,10], it is use electronic force, blowing air, or other forces to overcome the surface tension of a bubble or a membrane
Summary
The electrospinning process, invented by Formhals in 1934 [1], was widely studied on the whole world during the last decades [2,3]. A new approach was invented using polymer bubbles, which is a potential technology for mass-production of nano/micro-fibers, and it is termed as Bubbfil spinning technology [4]. Polyether sulfone (PES) has good chemical properties and hydrolysis stability, high strength, a wide pH range from 1 to 13. The fiber membrane obtained either electrospinning or Bubbfil spinning has light quality, good permeability, large specific surface, high porosity and good internal pore connectivity, being good filtering material [11,12,13]. The author used N,N-Dimethylacetamide (DMAC) to dissolve PES for electrospinning and Bubbfil spinning
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