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Langmuir

Title:		In Situ Generating CaCO(3) Nanoparticles Reinforced Nonflammable Calcium Alginate Biocomposite Fiber
Author(s):		Weng L; Zhang X;
Address:		"Department of Chemical Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi710049, People's Republic of China. School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an, Shaanxi710048, People's Republic of China. Key Laboratory of Functional Textile Material and Product (Xi'an Polytechnic University), Ministry of Education, Xi'an, Shaanxi710048, People's Republic of China"
Journal Title:		Langmuir
Year:		2022
Volume:		20221006
Issue:		41
Page Number:		12491 - 12498
DOI:		10.1021/acs.langmuir.2c01886
ISSN/ISBN:		1520-5827 (Electronic) 0743-7463 (Linking)
Abstract:		"Petroleum-based synthetic flame-proof fiber releases toxic volatile organic compounds in thermal decomposition process and has other problems, like tickling feeling and high density. A natural polysaccharide, calcium alginate, is an intrinsic fire-resistant biodegradable material, but its limited mechanical performance prevents it from being a practical flame-retardant fabric. To address this problem, Na(2)CO(3) was doped into alginate spinning solution to obtain in situ generating CaCO(3) nanoparticle-reinforced alginate fiber by microfluidic spinning technique. Comparative analysis illustrated that incorporation of 0.50% Na(2)CO(3) into the fiber greatly improved its mechanical performance; meanwhile, in situ generated CaCO(3) nanoparticles also throttled oxygen and heat flow in burning, endowing the fiber with excellent flame retardancy. The prepared composite fiber released less heat, smoke, and toxic volatile organic compounds in burning, which reduced the fire hazard. The formed residue char and pyrolysis products functioned as the physical barrier and displayed a synergistic effect to inhibit oxygen and heat transmission and impede the further combustion. All of the results demonstrate that the obtained fiber exhibits a good mechanical and flame-retardant performance, making it an ideal candidate as a fire-protection textile"
Keywords:		Alginates/chemistry *Flame Retardants *Nanoparticles Oxygen *Petroleum Smoke *Volatile Organic Compounds;
Notes:		"MedlineWeng, Lin Zhang, Xiaolin eng Research Support, Non-U.S. Gov't 2022/10/07 Langmuir. 2022 Oct 18; 38(41):12491-12498. doi: 10.1021/acs.langmuir.2c01886. Epub 2022 Oct 6"