纺织学报 ›› 2019, Vol. 40 ›› Issue (11): 106-112.doi: 10.13475/j.fzxb.20181100107

• 染整与化学品 • 上一篇    下一篇

层层自组装阻燃改性聚酯织物的制备及其性能

王访鹤1, 王锐1(), 魏丽菲2, 王照颖1, 张安莹1, 王德义3   

  1. 1.北京服装学院 材料设计与工程学院, 北京 100029
    2.四川大学 高分子科学与工程学院, 四川 成都 610065
    3.马德里高等材料研究院, 西班牙 马德里 28906
  • 收稿日期:2018-11-01 修回日期:2019-08-18 出版日期:2019-11-15 发布日期:2019-11-26
  • 通讯作者: 王锐
  • 作者简介:王访鹤(1993—),女,硕士。主要研究方向为聚酯纤维制备。
  • 基金资助:
    国家重点研发计划资助项目(2017YFB0309000)

Preparation and properties of layer-by-layer self-assembled flame retardant modified polyester fabrics

WANG Fanghe1, WANG Rui1(), WEI Lifei2, WANG Zhaoying1, ZHANG Anying1, WANG Deyi3   

  1. 1. School of Materials Design and Engineering, Beijing Institute of Fashion Technology, Beijing 100029, China
    2. College of Polymer Science and Engineering, Sichuan University, Chengdu, Sichuan 610065, China
    3. IMDEA Materials Institute, Madrid 28906, Spain
  • Received:2018-11-01 Revised:2019-08-18 Online:2019-11-15 Published:2019-11-26
  • Contact: WANG Rui

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摘要：

为解决阻燃聚酯织物熔滴严重的问题,采用紫外光(UV)辐照接枝共聚技术,通过1-羟基环己基苯甲酮的光引发作用,将阴离子型丙烯酸(AA)接枝到阻燃聚酯织物表面,在此基础上设计了γ-氨丙基三乙氧基硅烷(KH-550)与磺丁基-β-环糊精(SBE-β-CD)抑熔滴体系,在接枝织物表面进行层层自组装制备阻燃抑熔滴聚酯织物,并对改性后织物的形貌、热稳定性和阻燃性能进行表征。结果表明:引发剂质量分数为4%,AA质量分数为12%,紫外光照射时间为10 min时,阻燃聚酯的接枝率较优,为5.08%,但随着接枝率的增加其极限氧指数(LOI值)有所降低;层层自组装改性后的聚酯织物,在组装层数为12时,其极限氧指数可达到28%,成炭明显,垂直燃烧测试无熔滴产生,燃烧性能得到明显改善。

关键词: 紫外光辐照接枝, 阻燃聚酯织物, 抑熔滴, 阻燃整理, 层层自组装

Abstract:

In order to solve the problem of droplet of flame retardant polyester fabrics, ionic monomers acrylic acid (AA) were grafted on the surface of flame-retardant polyester fabric in the presence of 1-hydroxycyclohexyl benzophenone as photoinitiator under the irradiation of ultraviolet light (UV). After that, γ-Aminopropyl triethoxysilane (KH-550) and sulfobutyl ether-β-cyclodextrin (SBE-β-CD) were designed as an anti-droplet system and flame retardant anti-drop polyester fabric was fabricated by layer-by-layer self-assembly on the grafted fabric surface. The morphologies, thermal properties and combustion properties of the fabrics before and after self-assembly were characterized. The results showed when the initiator mass fraction is 4%, the AA mass fraction is 12%, and the UV irradiation time is 10 min, the grafting rate of the flame retardant polyester is better, which is 5.08%. But the limiting oxygen index (LOI) decreases with the increase of grafting rate. The LOI of modified polyester fabric is 28% and the char residue increase when the number of assembled layers is 12. The vertical combustion test has no droplets, and the combustion performance of polyester fabrics are significantly improved.

Key words: UV light grafting, flame retardant polyester fabric, anti-droplet, flame retardant finishing, layer-by-layer self-assembly

中图分类号: 

  • TQ323.6

图1

接枝聚合机制"

图2

丙烯酸接枝率随单体质量分数的变化曲线"

图3

丙烯酸接枝率随引发剂质量分数的变化曲线"

图4

丙烯酸接枝率随紫外光照时间的变化曲线"

表1

接枝率对极限氧指数的影响"

KH-550质量分数/% SBE-β-CD质量分数/% 光照时间/min 样品接枝率/% LOI值/%
4 4 10 1.32 29
8 4 10 2.97 26
12 4 10 5.08 23
14 4 10 7.13 21
16 4 10 9.20 20

图5

改性前后阻燃聚酯织物的扫描电镜照片"

图6

改性前后阻燃聚酯织物的热稳定性曲线"

表2

改性前后阻燃聚酯织物的垂直燃烧数据及LOI值"

样品名称 续燃时间/s 阴燃时间/s 损毁长度/cm 熔滴数 是否点燃脱脂棉 LOI值/%
FRPET 0 0 9.6 4 否 35
g-FRPET 2 0 7.6 1 是 23
m-FRPET 0 1 8.0 0 否 28

图7

改性前后阻燃聚酯织物锥形量热曲线"

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