EFFECT OF ETHYL ACETATE AMOUNT ON MORPHOLOGY AND DIAMETER OF NANOFIBERS SYNTHESIZED BY ELECTROSPINNING METHOD

Year 2025, Volume: 8 Issue: 1, 36 - 40, 30.06.2025

Sümran Bilgin , Sefa Emre Sünbül , Kürşat İcin

https://doi.org/10.70858/tijmet.1657368

Abstract

The aim of this study is to investigate the effect of ethyl acetate added to the solution used in
nanofiber production and the changes in nanofiber diameters depending on the amount of ethyl
acetate used. Solutions were prepared using polyacrylonitrile, high-entropy oxide, and
dimethylformamide, and ethyl acetate was added to these solutions at ratios of 5%, 10%, and
15% relative to DMF. These solutions were fed into an electrospinning device to produce
nanofibers. Nanofibers obtained from the solution containing 15% ethyl acetate exhibited a
discontinuous and irregular morphology. However, in the solution containing 10% ethyl
acetate, continuous nanofiber formation was achieved under production conditions of 0.14 ml/h
feed rate, 6 kV voltage, 205 mm distance, and 500 rpm rotation speed, resulting in nanofiber
diameters as small as 110 nm. The use of ethyl acetate at 5% and 10% ratios led to the formation
of thinner and more homogeneous nanofibers, while the use of 15% ethyl acetate negatively
affected nanofiber morphology by reducing solution viscosity. Solutions containing 5% PAN,
35% high-entropy oxide, and 10% ethyl acetate were processed using 16G (1.6 mm) and 22G
(0.7 mm) nozzle diameters to produce nanofibers.
The scanning electron microscope images of the obtained nanofibers revealed fiber diameters
of 182 nm and 111 nm, respectively. X-ray diffraction patterns of the nanofibers indicated no
significant changes in diffraction patterns with increasing ethyl acetate content. Fourier -
transform infrared spectroscopy analyses conducted to examine the chemical structure of the
nanofibers identified characteristic peaks corresponding to high-entropy oxides.

Keywords

nanofiber , electrospinnig , high entropy oxide

Ethical Statement

The authors declare that there is no conflict of interest and ethical issue.

Project Number

123M886

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