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THERMAL SCIENCE
International Scientific Journal
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SPIRAL ELECTROSPUN PLA/GO POROUS NANOFIBER MEMBRANES: TUNING PROPERTIES VIA GRAPHENE OXIDE INCORPORATION
ABSTRACT
This study focuses on the fabrication of polylactic acid/graphene oxide (PLA/GO) porous nanofiber membranes using spiral electrospinning technology. With PLA as the solute and nanographene oxide as the additive, the optimal process parameters for preparing pure PLA porous nanofibers were first determined through orthogonal experiments. Then, PLA/GO composite nanofibers with different GO contents (0.1 wt.%, 0.2 wt.%, 0.5 wt.%, 1.0 wt.%) were prepared. A series of characterization techniques, including Fourier-transform infrared spectroscopy, X-ray diffraction, pore size distribution analysis, mechanical testing, and contact angle measurement, were employed to comprehensively analyze the effects of GO addition on the structure and properties of the nanofiber membranes. The results reveal that the addition of GO significantly enhances the mechanical properties of the PLA/GO composite fiber membranes, with notable improvements in fiber fracture strength and elongation at break. Meanwhile, the addition of GO has no significant impact on the wetting performance and crystal structures of the fiber membranes. As the content of oxidized graphite increases, the average pore size decreases and the total number of pores increases These findings lay a solid foundation for further exploring the adsorption properties of PLA/GO porous nanofibers and expand their potential applications in various fields.
KEYWORDS
electrospinning, porous nanofiber membrane, PLA, GO, mechanical properties, wetting performance, pore size
PAPER SUBMITTED: 2024-10-10
PAPER REVISED: 2025-05-15
PAPER ACCEPTED: 2025-05-23
PUBLISHED ONLINE: 2026-04-12
DOI REFERENCE: https://doi.org/10.2298/TSCI2602217W
CITATION EXPORT: view in browser or download as text file
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© 2026 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence