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Carrageenan Fiber Prepared by a New Process Route of Ba2+ Ion Pre-Crosslinking in the Spinning Solution

Liting Jia1, Xiao Han1, Cuixia Qiao2, Gang Zhao2, Yanzhi Xia1, Zhixin Xue1,*

1 School of Chemistry and Chemical Engineering, State Key Laboratory of Bio-Fibers and Eco-Textiles, Marine Fiber New Material Institute, Qingdao University, Qingdao, 266071, China
2 Department of Traditional Chinese Medicine, The Affiliated Hospital of Qingdao University, Qingdao, 266000, China

* Corresponding Author: Zhixin Xue. Email: email

Journal of Renewable Materials 2024, 12(3), 427-441. https://doi.org/10.32604/jrm.2023.044310

Abstract

Ba2+ pre-crosslinked carrageenan fiber (Ba/CAF) was prepared by adding a small amount of Ba2+ to the carrageenan (CA) solution as the spinning solution. Ba/CAF-n/A, Ba/CAF-n/B and Ba/CAF-n/C were prepared with ethanol solution (combine A), high concentration BaCl2 solution (combine B) and low concentration BaCl2 solution (combine C), as coagulation bath and stretch bath, respectively. The combination of coagulation bath and stretch bath suitable for Ba2+ pre-crosslinking wet spinning was screened. The results showed that Ba2+ can induce the birefringence of the CA molecular chain, and the Ba2+ pre-crosslinking effect is the best when the CA mass fraction is 8.0 wt%. From the perspective of production safety, fiber performance and spinning cost, the coagulation bath of 3.5 wt% BaCl2 solution and stretch bath of 1.7 wt% BaCl2 solution, that is, combination C with low concentration BaCl2 solution, is the best choice. Ba/CAF-8.0/C was obtained under the best conditions. The linear intensity, water absorption and flame retardancy study showed that the breaking strength of Ba/CAF-8.0/C is as high as 1.61 cN/dtex, the water absorption was 649.2% and 574.3%, in deionized water and normal saline, respectively, and the LOI value reached 32.

Graphical Abstract

Carrageenan Fiber Prepared by a New Process Route of Ba<sup>2+</sup> Ion Pre-Crosslinking in the Spinning Solution

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APA Style
Jia, L., Han, X., Qiao, C., Zhao, G., Xia, Y. et al. (2024). Carrageenan fiber prepared by a new process route of ba2+ ion pre-crosslinking in the spinning solution. Journal of Renewable Materials, 12(3), 427-441. https://doi.org/10.32604/jrm.2023.044310
Vancouver Style
Jia L, Han X, Qiao C, Zhao G, Xia Y, Xue Z. Carrageenan fiber prepared by a new process route of ba2+ ion pre-crosslinking in the spinning solution. J Renew Mater. 2024;12(3):427-441 https://doi.org/10.32604/jrm.2023.044310
IEEE Style
L. Jia, X. Han, C. Qiao, G. Zhao, Y. Xia, and Z. Xue "Carrageenan Fiber Prepared by a New Process Route of Ba2+ Ion Pre-Crosslinking in the Spinning Solution," J. Renew. Mater., vol. 12, no. 3, pp. 427-441. 2024. https://doi.org/10.32604/jrm.2023.044310



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