Journal of Textile Research ›› 2020, Vol. 41 ›› Issue (02): 83-88.doi: 10.13475/j.fzxb.20181205006

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Ammonium modification of phytic acid and flame retardant finishing of Lyocell fabric

XU Ailing, WANG Chunmei()   

  1. School of Textile and Clothing, Nantong University, Nantong, Jiangsu 226019, China
  • Received:2018-12-24 Revised:2019-11-10 Online:2020-02-15 Published:2020-02-21
  • Contact: WANG Chunmei E-mail:w.cmei@ntu.edu.cn

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Abstract:

In order to improve the flame retardancy of Lyocell fabrics, the natural phytic acid was ammonium modified, and the dicyandiamide was used as catalyst for flame retardant finishing of Lyocell fabrics. The characteristic groups of phytic acid ammonium were characterized by Fourier transform infrared spectroscopy. By means of Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analysis, vertical burning instrument and limiting oxygen index, the infrared absorption, surface morphology and thermal stability of the finishing Lyocell fabric were determined. The results show that, compared with the unfinished Lyocell fabric, the mass loss rate of endothermic degradation decreases by 20.11%, the amount of carbon increases by 27.98% at 800 ℃. The vertical burning damage length of the finished Lyocell fabric decreases to 3.4 cm, the limiting oxygen index is up to 36.6%, reaching an acceptible flame retardant level. After 20 standard washings, the Lyocell fabrics finished with the flame retardant can still reach the requirements set in standard GB B2.

Key words: phytic acid, ammonium modification, flame retardant finishing, Lyocell fabric, flame retardant fabric

CLC Number: 

  • TS195.2

Fig.1

FT-IR spectra of phytic acid ammonium,phytic acid and urea"

Fig.2

FT-IR spectra of phytic acid ammonium and untreated and treated Lyocell fabrics A—未整理;B—整理后未水洗;C—整理后水洗1次;D— 整理后水洗20次;E—植酸铵。"

Fig.3

TG and DTG curve of Lyocell fabric before and after flame retardant finishing"

Tab.1

Pyrolysis data of Lyocell fabric in nitrogen before and after flame retardant finishing"

样品 失重
阶段		 初始温
度/℃		 终止温
度/℃		 质量损
失率/%		 800 ℃残
余炭量/%
阶段1 28 220 6.14
原样 阶段2 220 359 61.13 8.55
阶段3 359 770 23.79
阶段1 28 174 6.00
整理织物 阶段2 174 357 41.02 36.53
阶段3 357 770 15.38

Fig.4

SEM images of untreated Lyocell fabrics (a),treated Lyocell fabrics (b) and treated Lyocell fabrics after 20 washing cycles (c) (×500)"

Fig.5

SEM images of untreated Lyocell fabrics(a),treated Lyocell fabrics(b) and treated lyocell fabrics after 20 washing cycles(c) (×3 000)"

Fig.6

SEM images of char residue of untreated Lyocell fabrics (a), treated Lyocell fabrics (b) and treated Lyocell fabrics after 20 washing cycles (c) (×3 000)"

Tab.2

Combustion performance of untreated and treated Lyocell fabrics"

样品 未水洗 水洗20次
LOI值/% 续燃时间/s 阴燃时间/s 损毁炭长/cm 续燃时间/s 阴燃时间/s 损毁炭长/cm
原织物 <25.0 23 134 30.0 25 130 30.0
整理织物 36.6 0 0 3.4 0 0 3.8

Fig.7

Fabric sample pictures after vertical burning experimental. (a) Untreated Lyocell fabrics; (b) Treated with 300 g/L phytic acid ammonium; (c) Treated Lyocell fabrics after 20 washing cycles"

Tab.3

Whiteness and physical properties of untreated and treated Lyocell fabric"

织物编号 抗弯长度/cm 白度/% 断裂强力/N
1# 3.5 77.8 752
2# 4.5 57.9 524
3# 4.2 64.2 486
4# 4.4 58.4 536
[1] 高树珍, 迟文锐, 王兵兵, 等. 磷-氮耐氯阻燃整理剂的合成及其应用[J]. 纺织学报, 2018,39(6):101-105.
GAO Shuzhen, CHI Wenrui, WANG Bingbing, et al. Synjournal and application of phosphorus-nitrogen chlorine-resistant flame retardant finishing agent[J]. Journal of Textile Research, 2018,39(6):101-105.
[2] 任元林, 张悦, 曾倩, 等. 织物阻燃涂层新工艺的研究进展[J]. 纺织学报, 2017,38(9):168-173.
REN Yuanlin, ZHANG Yue, ZENG Qian, et al. Research progress on new technology of fabric flame retardant coating[J]. Journal of Textile Research, 2017,38(9):168-173.
[3] LIU Xiaohui, ZHANG Qiuyan, CHENG Bowen, et al. Durable flame retardant cellulosic fibers modified with novel, facile and efficient phytic acid-based finishing agent[J]. Cellulose, 2018,25:799-811.
[4] 蒋立, 刘群, 丁斌, 等. 纯棉织物的磷氮膨胀型阻燃整理[J]. 印染, 2016(9):39-43.
JIANG Li, LIU Qun, DING Bin, et al. Phosphorus-nitrogen expansion type flame retardant finishing of cotton fabric[J]. China Dyeing & Finishing, 2016(9):39-43.
[5] 范宝养, 丁颖, 沈勇, 等. 环保型阻燃剂在纺织品中的应用进展[J]. 上海工程技术大学学报, 2017,31(1):36-50.
FAN Baoyang, DING Ying, SHEN Yong, et al. Progress in the application of environmentally friendly flame retardants in textiles[J]. Journal of Shanghai University of Engineering Science, 2017,31(1):36-50.
[6] 曾倩, 任元林. 纤维织物阻燃研究进展[J]. 纺织科学与工程学报, 2018,35(1):159-163.
ZENG Qian, REN Yuanlin. Research progress on flame retardancy of fiber fabrics[J]. Journal of Textile Science and Engineering, 2018,35(1):159-163.
[7] NOROUZI M, ZARE Y, KIANY P. Nanoparticles as effective flame retardants for natural and synthetic textile polymers: application, mechanism, and optimization[J]. Polymer Reviews, 2015,55:531-560.
[8] ABOU-OKEIL A, EL-SAWY S M, ABDEL-MOHDY F A. Flame retardant cotton fabrics treated with organophosphorus polymer[J]. Carbohydrate Polymers, 2013,92:2293-2298.
doi: 10.1016/j.carbpol.2012.12.008 pmid: 23399290
[9] FENG Yajuan, ZHOU Yang, LI Daikun, et al. A plant-based reactive ammonium phytate for use as a flame-retardant for cotton fabric[J]. Carbohydrate Polymers, 2017,175:636-644.
doi: 10.1016/j.carbpol.2017.06.129
[10] 卢生, 林杰, 路艳华, 等. 用含三嗪结构苯基磷酸酯的涤纶织物阻燃整理[J]. 纺织学报, 2018,39(3):98-102.
LU Sheng, LIN Jie, LU Yanhua, et al. Flame retardant finishing with polyester fabric containing triazine structure phenyl phosphate[J]. Journal of Textile Research, 2018,39(3):98-102.
[11] 贾丽霞, 金崇业, 刘瑞, 等. 硅磷杂化阻燃整理对羊毛结构与热稳定性能的影响[J]. 纺织学报, 2017,38(12):101-105.
JIA Lixia, JIN Chongye, LIU Rui, et al. Influence of flame retardant finishing with silicon-phosphorus hybridization on structure and thermal stability of wool[J]. Journal of Textile Research, 2017,38(12):101-105.
[12] LIU Huan, WANG Xiaodong, WU Denzhen. Preparation, isothermal kinetics, and performance of a novel epoxy thermosetting system based on phosphazene-cyclomatrix network for halogen-free flame retardancy and high thermal stability[J]. Thermochim Acta, 2015,607:60-73.
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