Preliminary studies on the preparation and properties of chitosan nonwovens modified with acid vapors
Data
2022
Tytuł czasopisma
ISSN czasopisma
Tytuł tomu
Wydawca
Wydawnictwo Politechniki Łódzkiej
Lodz University of Technology Press
Lodz University of Technology Press
Abstrakt
The aim of the study was to develop methods for modifying chitosan nonwovens in the gas phase
(application of acid vapors). Organic and inorganic acids were used in the research. The time of treating
chitosan nonwovens with acid vapors ranged from 10 to 120 min. The conducted research has shown
that it is possible to modify chitosan nonwovens with the use of acid vapors (organic and inorganic). It
was found that the action of acid vapors does not have a destructive effect on chitosan fibers (SEM
tests), which means that the developed method can be applied to various forms of chitosan materials,
while the modification is carried out on the finished form.
Microbiological tests were used to investigate the activity and growth of the microorganisms, which
were related to the acids in the modified nonwovens. Only materials modified with acetic acid and
hydrochloric acid were found to have bacteriostatic properties against S. aureus and E. coli (gramnegative
and gram-positive bacteria). It was also found that chitosan formate significantly reduced the
number of colonies of S. aureus.
Opis
Słowa kluczowe
chitosan, surface modification, bacteriostatic activity, protonation of the amino group, ammonium salt, chitozan, modyfikacja powierzchni, działanie bakteriostatyczne, protonowanie grupy aminowej, sól amonowa
Cytowanie
Sikorski D., Bauer M., Frączyk J., Draczyński Z., Preliminary studies on the preparation and properties of chitosan nonwovens modified with acid vapors. W: AUTEX 2022 : 21st World Textile Conference AUTEX 2022 - AUTEX Conference Proceedings, Lodz University of Technology Press, Lodz 2022, s. 321-325, ISBN 978-83-66741-75-1, doi: 10.34658/9788366741751.67.