Effect of Fe₃O₄nanoparticles on magnetic electrospun nanofibers

Abstract

A new simple magnetic electrospinning setup was devised to manufacture partially aligned nanofiber in the paper. Compared with the traditional electrospinning setup, a U-shaped permanent magnet was employed and applied with a slide rheostat. Polyvinyl alcohol (PVA) and PVA/Fe 3 O 4 fibers were prepared by the magnetic electrospinning, respectively. The morphology and alignment of the fibers were characterized by the use of scanning electron microscopy (SEM). Results showed that the magnetic field could decrease the diameter of fibers and enhance the crystal conditions of fibers, and the addition of Fe 3 O 4 nanoparticles improved the alignment of nanofibers.

Numerical analysis of the electrospinning process for fabrication of composite fibers

“…In this process, the solvent evaporates from the moving jets and a composite fiber membrane is formed on the receptor [22]. Many types of studies, such as experimental research [23][24][25], theoretical analyses [26][27][28] and mathematical models [29,30], have been carried out on the ES nanofiber process. Xu et al [31] modeled ES processes and established a multi-phase model for ES process [32].…”

Formation mechanism of highly aligned nanofibers by a modified bubble electrospinning

“…However, the collected nanofibers are typically randomly oriented in the form of non-woven. The randomly oriented nanofibers lead to low molecular orientation and as a result materials with low mechanical properties are obtained [4][5][6]. It is desirable to generate aligned nanofibers to broaden the applications of electrospinning, such as tissue engineering, drug delivery, filtration membranes, etc.…”

Fabrication and characterization of magnetic nanocomposites by electric fields assisted electrospinning

“…It was possible that the spinning solution was magnetized due to the addition of Fe 3 O 4 nanoparticles. The magnetic field force could decrease the energy loss much more of the charged jet in the MEFAE process than that without Fe 3 O 4 nanoparticles [14]. However, with the increase of the Fe 3 O 4 contents the diameters of MCNF increased and their surface became rough, which could be related to the aggregation of Fe 3 O 4 .…”