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Critical Electrospinning Parameters for Synthesis Control of Stabilized Polyacrylonitrile Nanofibers

Polyacrylonitrile (PAN) fibers are widely used as precursors in the manufacture of high-conducting and mechanically resistant carbon fibers. The modulation of such fibers is carried out through electrospinning. In this work, we show the production and control of the morphology of nanometric-range PA...

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Detalles Bibliográficos
Autores principales: Ruiz Rocha, Juan Emmanuel, Moreno Tovar, Karla Rebeca, Navarro Mendoza, Ricardo, Gutiérrez Granados, Silvia, Cavaliere, Sara, Giaume, Domitille, Barboux, Philippe, Jaime Ferrer, Jesús Salvador
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10574287/
https://www.ncbi.nlm.nih.gov/pubmed/37836289
http://dx.doi.org/10.3390/nano13192648
Descripción
Sumario:Polyacrylonitrile (PAN) fibers are widely used as precursors in the manufacture of high-conducting and mechanically resistant carbon fibers. The modulation of such fibers is carried out through electrospinning. In this work, we show the production and control of the morphology of nanometric-range PAN fibers for their potential use as precursors for high-electrical-conductivity carbon fibers. PAN samples dissolved in dimethylformamide (DMF) were prepared at 6, 10, and 12% w/w, at 15 and 25 kV. The impact of the rotation of the collector drum at 100, 300, and 500 RPM was also studied. It was found that the percentage of PAN in the solution proportionally affects the diameter of the fibers and that the preparation potential affects the morphology. The rotation speed, when increased, decreases the diameter, and it has a negative impact on the morphology. Fibers prepared with 6% w/w at 15 kV and 500 RPM show 90 nm diameters, the smallest diameter of all the samples.