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Preparation of Calcium Alginate Fiber by Ion Exchange

  • Textile Coloration and Finishing
  • Abbr : Text. Color. and Finish.
  • 2011, 23(1), pp.51-59
  • Publisher : The Korean Society Of Dyers And Finishers
  • Research Area : Engineering > Fiber Engineering > Dyeing Engineering

SON TAE WON 1 Min Gyeong Lee 1 Song Jeong Han 1

1영남대학교

Accredited

ABSTRACT

Calcium alginate fiber were prepared by wet spinning of various conditions, including different concentrations of sodium alginate solution and CaCl_2 concentrations for coagulating the fiber through an absorption of calcium ion. The absorption of calcium ion during the coagulating step lead to solidify the fibers by the replacement of sodium ion with calcium ion to produce some crosslinking. The concentration of calcium ion in the calcium alginate fiber seems to be well related to the mechanical and physical property of the fiber, such as fiber strength moisture regain, and degree of swelling. The tensile strength of calcium alginate fiber was increased along with the increasing amount of sodium alginate solution. According to EDS analysis, 7 wt% CaCl_2coagulation bath resulted in more calcium ion in the fiber compared to 3 wt% CaCl_2 coagulation bath. The decomposition temperature of calcium alginate fiber was 199℃, which 14℃ higher than that of sodium alginate.

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