TY - JOUR
T1 - Submicron aerosol filtration performance of centrifugally spun nanofibrous polyvinylpyrrolidone media
AU - Melike, Gungor
AU - Calisir, Mehmet D.
AU - Akgul, Yasin
AU - Selcuk, Sule
AU - Ali, Demir
AU - Kilic, Ali
N1 - Publisher Copyright:
© The Author(s) 2019.
PY - 2021/6
Y1 - 2021/6
N2 - In this study, polyvinylpyrrolidone-based nanofibrous air filter media were produced via centrifugal spinning and subsequently stabilized by thermal cross-linking process. Samples were produced using solutions with three different polymer concentrations (5, 10 and 20 wt.%) and three different rotational speeds (4000, 6000 and 8000 r/min). After obtaining the optimum web structure with the lowest average fiber diameter and the most uniform distribution, the webs were later thermally cross-linked in order to stabilize polyvinylpyrrolidone against the degradative effects of water. In addition, the webs were subjected to dissolvability tests to see the efficacy of cross-linking treatment. Morphological, structural and chemical characterizations of the polyvinylpyrrolidone webs were performed by SEM, XRD and FTIR, respectively. Finally, filter efficiency and pressure drop were measured to assess filter performance. The results have shown that the lowest average fiber diameter is obtained at the highest rotational speeds. Subsequent thermal cross-linking treatment has been found to prevent fibers from dissolving in water. The produced water-resistant, environmentally friendly polyvinylpyrrolidone nanofibrous filter media has had a satisfactory filtration performance with a high filter efficiency of 99.995% and a high quality factor of 0.39 mm H2O−1.
AB - In this study, polyvinylpyrrolidone-based nanofibrous air filter media were produced via centrifugal spinning and subsequently stabilized by thermal cross-linking process. Samples were produced using solutions with three different polymer concentrations (5, 10 and 20 wt.%) and three different rotational speeds (4000, 6000 and 8000 r/min). After obtaining the optimum web structure with the lowest average fiber diameter and the most uniform distribution, the webs were later thermally cross-linked in order to stabilize polyvinylpyrrolidone against the degradative effects of water. In addition, the webs were subjected to dissolvability tests to see the efficacy of cross-linking treatment. Morphological, structural and chemical characterizations of the polyvinylpyrrolidone webs were performed by SEM, XRD and FTIR, respectively. Finally, filter efficiency and pressure drop were measured to assess filter performance. The results have shown that the lowest average fiber diameter is obtained at the highest rotational speeds. Subsequent thermal cross-linking treatment has been found to prevent fibers from dissolving in water. The produced water-resistant, environmentally friendly polyvinylpyrrolidone nanofibrous filter media has had a satisfactory filtration performance with a high filter efficiency of 99.995% and a high quality factor of 0.39 mm H2O−1.
KW - centrifugal spinning
KW - cross-linking
KW - filtration
KW - nanofiber
KW - Polyvinylpyrrolidone
UR - http://www.scopus.com/inward/record.url?scp=85069848576&partnerID=8YFLogxK
U2 - 10.1177/1528083719865041
DO - 10.1177/1528083719865041
M3 - Article
AN - SCOPUS:85069848576
SN - 1528-0837
VL - 50
SP - 1545
EP - 1558
JO - Journal of Industrial Textiles
JF - Journal of Industrial Textiles
IS - 10
ER -