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PISARENKO, T. PAPEŽ, N. SOBOLA, D. ŢĂLU, Ş. ČÁSTKOVÁ, K. ŠKARVADA, P. MACKŮ, R. ŠČASNOVIČ, E. KAŠTYL, J.
Originální název
Comprehensive characterization of PVDF nanofibers at macro- and nanolevel
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
This study is focused on the characterization and investigation of polyvinylidene fluoride (PVDF) nanofibers from the point of view of macro- and nanometer level. The fibers were produced using electrostatic spinning process in air. Two types of fibers were produced since the collector speed (300 rpm and 2000 rpm) differed as the only one processing parameter. Differences in fiber’s properties were studied by scanning electron microscopy (SEM) with cross-sections observation utilizing focused ion beam (FIB). The phase composition was determined by Fourier-transform infrared spectroscopy (FTIR) and Raman spectroscopy. The crystallinity was determined by differential scanning calorimetry (DSC), and chemical analysis of fiber’s surfaces and bonding states were studied using X-ray photoelectron spectroscopy (XPS). Other methods, such as atomic force microscopy (AFM) and piezoelectric force microscopy (PFM), were employed to describe morphology and piezoelectric response of single fiber, respectively. Moreover, the wetting behavior (hydrophobicity or hydrophilicity) was also studied. It was found that collector speed significantly affects fibers alignment and wettability (directionally ordered fibers produced at 2000 rpm almost super-hydrophobic in comparison with disordered fibers spun at 300 rpm with hydrophilic behavior) as properties at macrolevel. However, it was confirmed that these differences at the macrolevel are closely connected and originate from nanolevel attributes. The study of single individual fibers revealed some protrusions on the fiber’s surface, and fibers spun at 300 rpm had a core-shell design, while fibers spun at 2000 rpm were hollow.
Klíčová slova
AFM; core-shell; DSC; electrostatic spinning; FIB; FTIR; hollow; hydrophobic; hydrophilic; nanofibers; PFM; PVDF; SEM; STEM; Raman spectroscopy; XPS
Autoři
PISARENKO, T.; PAPEŽ, N.; SOBOLA, D.; ŢĂLU, Ş.; ČÁSTKOVÁ, K.; ŠKARVADA, P.; MACKŮ, R.; ŠČASNOVIČ, E.; KAŠTYL, J.
Vydáno
1. 2. 2022
Nakladatel
MDPI
Místo
BASEL
ISSN
2073-4360
Periodikum
Polymers
Ročník
14
Číslo
3
Stát
Švýcarská konfederace
Strany od
593
Strany do
610
Strany počet
18
URL
https://www.mdpi.com/2073-4360/14/3/593
Plný text v Digitální knihovně
http://hdl.handle.net/11012/203910
BibTex
@article{BUT176392, author="Tatiana {Pisarenko} and Nikola {Papež} and Dinara {Sobola} and Ştefan {Ţălu} and Klára {Částková} and Pavel {Škarvada} and Robert {Macků} and Erik {Ščasnovič} and Jaroslav {Kaštyl}", title="Comprehensive characterization of PVDF nanofibers at macro- and nanolevel", journal="Polymers", year="2022", volume="14", number="3", pages="593--610", doi="10.3390/polym14030593", issn="2073-4360", url="https://www.mdpi.com/2073-4360/14/3/593" }