Journal of Textile Research ›› 2022, Vol. 43 ›› Issue (05): 130-135.doi: 10.13475/j.fzxb.20201205406

• Dyeing and Finishing & Chemicals • Previous Articles     Next Articles

Preparation flame retardant polyester fabric modified with halogen-free ferric oxide and its property

XUE Baoxia1,2, SHI Yiran1, ZHANG Feng1, QIN Ruihong1, NIU Mei1,3()   

  1. 1. College of Textile Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
    2. Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, Shanxi 030032, China
    3. Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China
  • Received:2020-12-21 Revised:2022-02-19 Online:2022-05-15 Published:2022-05-30
  • Contact: NIU Mei E-mail:niumei@tyut.edu.cn

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Abstract:

In order to achieve the "halogen-free, low smoke, low toxicity" flame retardant of polyester fabric, the polyethylene terephthalate (PET) fiber was modified with the nano iron oxide (Fe2O3) using the melt spinning method. Fe2O3/PET fabric with different structures were constructed through weaving, so as to explore the internal relationship between fabric structure and flame retardant properties. The results show that the comprehensive flame retardant properties of Fe2O3/PET fabric with plain weave structure were significantly improved. Compared with the pure PET fabric, the ignition time was prolonged 132.4%. The heat release rate and the total heat release reduced by 30.1%, 19.7%. The total smoke production and smoke release rate have decreased by 43.5% and 44.1%, respectively. The Fe2O3/PET twill fabric played an obvious role in inhibiting flame spread. The research proved that, under the same fabric thickness, smaller fabric structure coefficient caused greater tightness. Fabric burning led to the dense layer of charcoal, which interrupted the combustion reaction and thus achieving double effect for flame retardant and smoke suppression.

Key words: iron oxide, polyester fabric, flame retardant fabric, smoke suppression, fabric structure

CLC Number: 

  • TS156

Tab.1

Various parameters of different fabric samples"

试样编号 纱线种类 组织结构 密度/(根·(10 cm)-1) 厚度/mm 面密度/
(g·m-2)		 紧度/% 组织
系数
经向 纬向 经向 纬向 总
S-0 PET长丝 平纹 319 141±3 0.50 290.4±3 55.3±0.2 43.8±0.1 74.9±0.1 1
S-1 Fe2O3改性PET长丝 平纹 319 110±3 0.46 274.3±3 55.5±0.2 43.8±0.1 75.0±0.1 1
S-2 Fe2O3改性PET长丝 斜纹 319 170±3 0.50 297.1±3 55.5±0.1 54.2±0.1 79.6±0.5 2
S-3 Fe2O3改性PET长丝 经二重 319 156±3 0.46 295.6±3 55.5±0.1 50.6±0.5 78.0±0.5 2

Fig.1

SEM images of Fe2O3 modified PET fiber. (a) Longitudinal (×1 000); (b) Cross section (×2 000)"

Tab.2

Cone calorimetric test parameters of each sample"

试样
编号		 TTI/s pk-HRR/(kW·m-2) THR/(MJ·m-2) TSP/m2
S-0 37 364.49±5 11.7±1 2.3
S-1 86 254.79±3 9.4±1 1.3
S-2 73 278.43±5 11.6±1 1.3
S-3 87 260.73±5 9.2±1 1.4

Fig.2

THR (a) and pk-HRR (b) curves of each sample"

Fig.3

SPR (a) and TSP (b) curves of each sample"

Tab.3

Limit oxygen index and vertical combustion test parameters of each sample"

试样
编号		 LOI
值/%		 续燃时
间/s		 损毁长
度/cm		 熔滴
数量		 是否引燃
脱脂棉
S-0 20.4 47.1 27.0 15 是
S-1 24.1 17.9 17.7 7 是
S-2 23.3 13.1 17.0 2 是
S-3 22.8 42.2 19.4 11 是

Fig.4

SEM images of char residue microstructure of S-0 and S-1 fabric(×1 000)"

Fig.5

FT-IR spectra of char residue of S-1 and S-0 fabric"

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