Fabrication of Poly (Acrylonitrile-Co-Methyl Methacrylate) Nanofibers Containing Boron via Electrospinning Method: A Study on Size Distribution, Thermal, Crystalline, and Mechanical Strength Properties

Meisam Sadeghi, Zahra Moghimifar, P. Senthil Kumar, Hamedreza Javadian and Majid Farsadrooh
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Meisam Sadeghi: Faculty of Chemical Engineering, Nanotechnology Research Institute, Babol Noushirvani University of Technology, Babol 47148-71167, Iran
Zahra Moghimifar: Chemistry and Chemical Engineering Research Center of Iran (CCERCI), Tehran 14335-186, Iran
P. Senthil Kumar: Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam 600020, India
Hamedreza Javadian: Department of Chemical Engineering, ETSEIB, Universitat Politècnica de Catalunya, 08028 Barcelona, Spain
Majid Farsadrooh: Renewable Energies Research Laboratory, Department of Chemistry, Faculty of Sciences, University of Sistan and Baluchestan, Zahedan 98167-45785, Iran

Sustainability, 2021, vol. 13, issue 8, 1-12

Abstract: Electrospun polymeric nanofibers have attracted great attention in filtration systems and protective clothes. One of them is polyacrylonitrile (PAN) nanofibers, which are a suitable choice for the fabrication of protective clothes in the defense industry, due to their good fiber formation and easy optimization with chemical reagents. They do not possess adequate properties for protection against chemical, biological, and radiological agents. In this research, poly (acrylonitrile-co-methyl methacrylate) (PANMM) nanofibers and PANMM nanofibers containing 10 B were fabricated via the electrospinning method. The study of the morphology of nanofibers, using scanning electron microscopy (SEM), revealed that smooth and knotted fibers with an average diameter of 259 ± 64 nm were obtained, using 12% ( w / v ) of PANMM in the solution as the optimal concentration for the electrospinning process. This sample was doped with boron (10%, 30%, and 50% ( w / w )) to fabricate the samples of PANMM + boric acid (BA) nanofibers. The results demonstrated an increasing trend in the diameter of the nanofibers with an increase in BA up to 50%. At this concentration, smooth fibers were formed with lower knots. Furthermore, the presence of B-O and O-H groups was observed using Fourier transform infrared (FTIR) spectroscopy. To study the tensile properties, the nanofibrous web was tested, and the results showed that introducing 10 B to PANMM nanofiber structures reduced the strength of the nanofibers. Thermal gravimetric analysis (TGA) showed that BA-modified PANMM nanofibers had lower thermal degradability, as compared with pure PANMM.

Keywords: electrospinning; polyacrylonitrile nanofiber; boron; characterization (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
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