z-logo
open-access-imgOpen Access
Production and analysis of electrospun PA 6,6 and PVA nanofibrous surfaces for filtration
Author(s) -
Sezen Dönmez Dinç,
Fatma Göktepe
Publication year - 2021
Publication title -
industria textilă
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.281
H-Index - 14
ISSN - 1222-5347
DOI - 10.35530/it.072.05.202026
Subject(s) - fineness , electrospinning , materials science , polymer , composite material , filtration (mathematics) , air permeability specific surface , nanofiber , permeability (electromagnetism) , fiber , membrane , chemical engineering , chemistry , layer (electronics) , engineering , biochemistry , statistics , mathematics
Electrospun nanofibrous surfaces were produced by using two different polymers (PA 6,6 and PVA) at three differentlevels of polymer feeding rate (0.2, 0.6 and 1.0 ml/h, respectively) and three different levels of production time inelectrospinning (5, 10 and 15 minutes, respectively) and the effect of polymer type, polymer feeding rate and productiontime was determined by analyzing unit weight and thickness of the nanofibrous membranes as well as fibre finenessand pore size distributions. The results showed that much finer fibres were produced by PA 6,6 polymer compare toPVA. The minimum average fibre fineness was 150.96 nm (by PA 6,6 polymer; 0.2 ml/h; 5 min.) while maximum fibrefineness was 243.43 nm (by PVA polymer; 0.6 ml/h; 15 min.). Similarly, the pore sizes of nanofibrous surfaces producedby PA 6,6 were smaller compare to the ones produced by PVA polymer. The results also indicated that coarser fibreswere produced as the polymer feed rate and electrospinning time increased. In the second part of the work, compositestructures were obtained by combining nanofibrous surfaces with PP non-woven material and their air permeability andfiltration efficiency by using an aerosol having 0.2–0.33 mm diameter range were analyzed. The air permeability of PA6,6 nanofibrous surfaces were much higher compare to the ones produced by PVA and quite high filtration efficiency(99.901 %) was obtained with PA 6,6 nanofibrous surfaces. Also, potential of these nanofibrous surfaces was evaluatedby analysing chemical groups eliminated following their exposure to cigarette smoke which was chosen as a specificcase study.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here