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http://dx.doi.org/10.5764/TCF.2011.23.1.051

Preparation of Calcium Alginate Fiber by Ion Exchange  

Son, Tae-Won (School of Textiles, Yeungnam University)
Lee, Min-Gyeong (Department of Textile Engineering, Yeungnam University)
Han, Song-Jeong (Department of Textile Engineering, Yeungnam University)
Publication Information
Textile Coloration and Finishing / v.23, no.1, 2011 , pp. 51-59 More about this Journal
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% $CaCl_2$ coagulation 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 $199^{\circ}C$, which $14^{\circ}C$ higher than that of sodium alginate.
Keywords
alginate; ion exchange; wet spinning; calcium alginate fiber; $CaCl_2$ coagulation bath;
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Times Cited By KSCI : 2  (Citation Analysis)
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