Effects of two different agents, H3PO4 and NaCl, to increase the flame-retardant properties of cellulose fibers

다국어 초록 (Multilingual Abstract)

After flame-retardant treatment by the two different agents, the thermal behaviors of Lyocell fibers are discussed. In this research, H3PO4 and NaCl reduced the degradation rate and increased the char yield of the Lyocell fibers, and also increased the limiting oxygen index with the char yield increased. After treatment, the integral procedure decomposition temperature and the activation energy of Lyocell fibers are significantly increased by various concentration factors. These phenomena were indicated by the dehydration, rearrangement, formation of carbonyl groups, the evolution of carbon monoxide and dioxide, and carbonaceous residue formation. These effects were indicating the slow pathway of flame retardancy for the Lyocell fibers and are attributed to the two different flame-retardant agent treatments.

참고문헌 (Reference)

1 이재영, "새로운 라이오셀/poly(butylene succinate) 바이오복합재료의 층간전단, 기계적, 열적 특성에 미치는 섬유함량의 영향" 한국접착및계면학회 10 (10): 106-112, 2009

2 Gronli MG, "Thermogravimetric analysis and devolatilization kinetics of wood" 41 : 4201-4208, 2002

3 Hostler SR, "Thermal conductivity of a clay-based aerogel" 52 : 665-669, 2009

4 Hall ME, "The flammability of Lyocell" 64 : 505-510, 1999

5 Woodings CR, "The development of advanced cellulosic fibers" 17 : 305-309, 1995

6 Wu QL, "SEM/STM studies on the surface structure of a novel carbon fiber from Lyocell" 156 : 792-795, 2006

7 Peng S, "Lyocell fibers as the precursor of carbon fibers" 90 : 1941-1947, 2003

8 Price D, "Influence of flame retardants on the mechanism of pyroysis of cotton (cellulose)fabrics in air" 40–41 : 511-524, 1997

9 Bai BC, "Improved flame-retardant properties of lyocell fiber achieved by phosphorus compound" 135 (135): 226-228, 2014

10 김종구, "Improved flame retardant performance of cellulose fibers following fluorine gas treatment" 한국탄소학회 28 (28): 66-71, 2018

11 Li XG, "High-resolution thermogravimetry of cellulose esters" 71 (71): 573-578, 1999

12 Kandola BK, "Flameretardant treatments of cellulose and their influence on the mechanism of cellulose pyrolysis" 36 : 721-794, 1996

13 Wang J, "Enhancing thermal conductivity of palmitic acid based phase change materials with carbon nanotubes as fillers" 84 : 339-344, 2010

14 정진영, "Electrochemical properties of KOH-activated lyocell-based carbon fibers for EDLCs" 한국탄소학회 27 (27): 112-116, 2018

15 Guo B, "Effects of organo-montmorillonite dispersion on thermal stability of epoxy resin nanocomposites" 40 : 1743-1748, 2004

16 김형기, "Effects of an inorganic ammonium salt treatment on the flame-retardant performance of lyocell fibers" 한국탄소학회 17 (17): 74-78, 2016

17 Nam S, "Effect of urea additive on the thermal decomposition of greige cotton nonwoven fabric treated with diammonium phosphate" 96 : 2010-2018, 2011

18 Cho C, "Effect of isothermal stabilization process and ultrasonic cleaning on the characteristics of rayon fabrics" 14 : 21-27, 2013

19 Kandola BK, "Complex char formation in flame-retarded fibre intumescent combinations-II. Thermal analytical studies" 54 : 289-303, 1996

20 Loubinoux D, "An experimental approach to spinning new cellulose fibers with N-methylmorpholine-oxide as a solvent" 57 : 61-65, 1987

21 Li H, "A mechanism study on preparation of rayon based carbon fibers with(NH4)2SO4/NH4Cl/organosilicon composite catalyst system" 67 : 2675-2682, 2007