Flame Retardancy and Pyrolysis Products of Calcium Alginate Fibers

Abstract:

The combustion properties, flame retardant property, thermal degradation and component of pyrolysis products of calcium alginate fibers were investigated in this paper. The limiting oxygen index value of calcium alginate fibers was 34.4 showing no combustion in the air. The fiber extinguishes instantly when it is moved away from the fire. During the combustion process, the heat release rates (HRR), effective heat combustion (EHC) and total heat release (THR) of calcium alginate fibers were lower than those of cotton fibers, but higher than those of sodium alginate. The carbon dioxide yield rate of calcium alginate fibers was higher than that of cotton fibers but lower than that of sodium alginate. Calcium carbonate and calcium hydroxide, which are beneficial to hamper fibers combustion and diffusion of heat and oxygen, were formed during thermal degradation of calcium alginate fibers. There were 15 kinds of pyrolysis products in gas phase of calcium alginate fibers at 350°C and 45 kinds at 700 °C, while there were 26 kinds of pyrolysis products of sodium alginate at 350°C and 26 kinds at 700°C. Based on a series of study, the flame retardant mechanism of calcium alginate fibers was analyzed.

• Periodical: Advanced Materials Research (Volume 441)
• Pages: 346-350
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.441.346
• Online since: January 2012
• Authors: Chuan Jie Zhang, Ping Zhu, Jin Chao Zhao, Nan Nan Zhang
• Keywords: Calcium Alginate Fibers, Combustion Properties, Flame Retardance, Pyrolysis Products, Thermal Degradation

References

[1] W. X. Li, J. L. Hua and Y. G. Zhang, Textile Auxiliaries. 8 (2010) 14-17.

[2] P. Zhu, C. J. Zhang and S. Y. Sui, Research Journal of Textile and Apparel. 4 (2009) 1-8.

[3] C. J. Zhang, P. Zhu and H. F. Wang, Textile Auxiliaries. 1 (2009) 15-18.

[4] P. Zhu and C. J. Zhang, Journal of Clinical Rehabilitative Tissue Engineering Research. 32 (2008) 6397-6400.

[5] C. J. Zhang, P. Zhu and H. F. Wang, Journal of Tianjin Polytechnic University. 5 (2008) 23-27, 32.

[6] Y. M. Qin, Journal of Applied Polymer Science. 100 (2006) 2516-2520.

[7] C. J. Zhang, P. Zhu and X. Q. Guo, China Synthetic Fiber Industry. 2 (2008) 28-32.

[8] C. J. Zhang, Y. H. Liu and L. Wang, Textile Auxiliaries. 1 (2011) 14-17.

[9] P. Zhu, L. Wang and C. J. Zhang, China Synthetic Fiber Industry. 6 (2009) 1-4.

[10] X. Q. Guo, P. Zhu and X. Wang, China textile leader. 7 (2006) 44-50.