綿スライバーへの電子線グラフト重合における精練漂白処理の影響

  • 本田 拓也
    倉敷紡績株式会社技術研究所 福井大学大学院工学研究科総合創成工学専攻
  • 坂井 亙
    京都工芸繊維大学工芸科学部生命物質科学域
  • 宮崎 孝司
    福井大学学術研究院工学系部門繊維先端工学講座
  • 久田 研次
    福井大学学術研究院工学系部門繊維先端工学講座

書誌事項

タイトル別名
  • Effect of Scouring and Bleaching on Chemical Modification of Cotton Sliver by EB-Induced Graft Polymerization

抄録

<p>A cotton fabric has high water absorption and good touch, so it has been used as clothes since ancient times. Electron beam (EB) induced graft polymerization is one of the chemical modification methods for polymer materials such as fibers and films. In this study, it was shown that uniform modification can be achieved through EB-induced graft polymerization even with unrefined cotton sliver. The Cotton sliver can be used not only for fabrics but also for knits and nonwoven fabrics and so on. ESR spectroscopy and the degree of grafting showed that the amount of radical generated in the original sliver was smaller than that for the sliver after scouring and bleaching. A more remarkable difference was observed in the amount of active radical that could initiate the graft polymerization. Nevertheless, it was possible to modify the cotton sliver that had not been scoured and bleached through the EB-induced graft polymerization if the graft polymerization could be completed within 90 min. Microprobe Raman spectroscopy revealed that the generated graft chains were uniformly distributed inside the sliver. A comparison of the reactivity of monomers in different dispersion states in water showed that the monomers forming small dispersion units in water tended to have the higher degree of grafting. The diffusion process in which the monomer reaches the active site in the sliver before their disappearance must be key process for the graft polymerization to proceed.</p>

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