Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12188/18325
Title: | The Influence of Non-Selective Oxidation on Differently Pre-Treated Cotton Yarns Properties | Authors: | Emilija Toshikj, Igor jordanov, Vesna Dimova, Biljana Mangovska | Issue Date: | Sep-2016 | Publisher: | Materials Science | 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. | URI: | http://hdl.handle.net/20.500.12188/18325 | DOI: | 10.5755/j01.ms.22.3.12110 |
Appears in Collections: | Faculty of Technology and Metallurgy: Journal Articles |
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.