The Influence of Non-selective Oxidation on Differently Pre-treated Cotton Yarns Properties

Authors

  • Emilija TOSHIKJ Teaching Assistant, Msc. Ss Cyril and Methodius University Faculty of Technology and Metallurgy Department of Textile
  • Igor JORDANOV Associate Professor, PhD Ss Cyril and Methodius University Faculty of Technology and Metallurgy Department of Textile
  • Vesna DIMOVA Associate Professor, PhD Ss Cyril and Methodius University Faculty of Technology and Metallurgy Department of Organic Chemistry
  • Biljana MANGOVSKA Full Profesor, PhD Ss Cyril and Methodius University Faculty of Technology and Metallurgy Department of Textile

DOI:

https://doi.org/10.5755/j01.ms.22.3.12110

Keywords:

oxidation, cotton, degradation, carboxyl groups, functionalization

Abstract

Differntly pre-treated cotton yarns were subjected to non-selective oxidation with perchloric acid and the effects of pre-treatment processes on oxidation were studied through functional groups quantity, and degradation through mechanical properties and degree of polymerization. Different pre-treatments include, different scouring (with alkali, alkaline and acid pectinase), mercerization-different scouring as well as different scouring-mercerization. The quantity of functional groups was studied by measuring carboxyl groups with methylene blue and calcium-acetate methods and aldehyde groups with iodine and tetrazolium (TTC) methods. Pre-treatment processes affect the degree of elimination of non-cellulosic components of cotton and have strong influence on oxidation process. The non-selective oxidation of enzymatic scoured cotton with perchloric acid has introduced carboxyl and aldehyde groups without serious degradation of cotton yarns, confirmed by only 15 % decreasing of tensile strength and 8 % decreasing of degree of polymerization.

DOI: http://dx.doi.org/10.5755/j01.ms.22.3.12110

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Published

2016-09-01

Issue

Vol. 22 No. 3 (2016)

Section

TEXTILE MATERIALS

License

 

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