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A Study on the Anionisation of Cotton Fabric

면직물의 음이온화에 관한 연구

  • Bae, Do Gyu (Department of Bio-fibers and Materials Science, Kyungpook National University) ;
  • Lee, Tae Jung (Department of Bio-fibers and Materials Science, Kyungpook National University)
  • 배도규 (경북대학교 바이오섬유소재학과) ;
  • 이태정 (경북대학교 바이오섬유소재학과)
  • Received : 2017.09.21
  • Accepted : 2018.01.17
  • Published : 2018.03.27

Abstract

Cotton has no adsorption ability for the cationic dye and heavy metal but, if anionized cotton can be made, it will be possible. In this study, to enable the anionisation of cotton fabric, it was modified using sodium vinylsolfonate(SV) as the anionisation reagent, employing a pad-dry-cure(PDC) technique. The effects of curing time, treatment concentrations of urea, sodium hydroxide and SV on the weight increase were experimented and then, the physical characterizations of sulfoethyl cotton(SEC) depending on the finishing conditions were estimated, thus the application possibility of SV as anionisation reagent was investigated. It was not much changed by anionisation except wrinkle recovery. And the structure of SEC was elucidated by Raman and NMR spectoscopy. The feasibility of using Raman and NMR spectroscopy with the band at $1,043cm^{-1}$, and 50.5ppm, respectively as marker band to determine sulfoethyl group of SEC was reported. The total degree of SV substitution(DSV) was determined via elemental analysis. SEC with diverse total DSV up to 0.066 was obtained. In the thermal decomposition(pyrolysis) by DSC, it can be found that the pyrolysis temperature was about $30^{\circ}C$ lower than that of non-treated cotton fabric.

Keywords

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