Uticaj oksidacije na strukturu i površinsko naelektrisanje pamučne pređe

Abstract

In this work, an influence of oxidation with potassium permanganate (KMnO4) of different concentration, on the structure, sorption properties and surface charge of cotton yarn was investigated. Cotton oxidation was performed at const pH for 1 hour. After the oxidation, samples were washed, dried and characterized from the aspect of change in morphology, sorption properties, COOH group content and surface charge. The results have shown that oxidation with the most concentrated solution of KMnO4 led to significant increase of COOH group content in the sample (around 6 times), which thus led to increment of moisture sorption as well as reduction of zeta potential in basic range. These results confirmed that KMnO4 could be successfully used for cotton oxidation with aim to improve sorption properties.