Electrospinning Poly(acrylonitrile) Containing Magnetite Nanoparticles: Influence of Magnetite Contents

Author:

Graciano Alvarez Ana Karen12,Dotter Marius13ORCID,Tuvshinbayar Khorolsuren1,Bondzio Laila3,Ennen Inga3,Hütten Andreas3ORCID,Blachowicz Tomasz4ORCID,Ehrmann Andrea1ORCID

Affiliation:

1. Faculty of Engineering Sciences and Mathematics, Bielefeld University of Applied Sciences and Arts, 33619 Bielefeld, Germany

2. School of Sciences, Universidad de las Américas Puebla, Puebla 72810, Mexico

3. Thin Films and Physics of Nanostructures, Faculty of Physics, Bielefeld University, 33615 Bielefeld, Germany

4. Institute of Physics—Center for Science and Education, Silesian University of Technology, 44-100 Gliwice, Poland

Abstract

Magnetic nanofibers were prepared by electrospinning polymer/metal solutions of poly(acrylonitrile) (PAN) with magnetite (Fe3O4) nanoparticles. At a mass ratio of PAN:magnetite of 2:1, the total solid content in the dimethyl sulfoxide (DMSO) solution was varied between 15 wt.% and 25 wt.%, which represents the limits of the spinnable range. The results show that the most homogeneous nanofiber mats were 21 wt.% solid contents. At 15 wt.% solid contents, a nano-membrane with some fibrous regions was produced. Nanofibers at 25 wt.% had a much larger and more inhomogeneous diameter. Nevertheless, the magnetic properties of all samples were very similar, indicating that the distribution of magnetite nanoparticles in the fibers is comparable in all samples. The results also suggested that the samples spun from solutions with near-ideal solid contents (19–21 wt.%) contain agglomerations of the nanoparticles inside the nanofibers.

Publisher

MDPI AG

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