纺织学报 ›› 2022, Vol. 43 ›› Issue (07): 97-103.doi: 10.13475/j.fzxb.20210205407

• 染整与化学品 • 上一篇    下一篇

基于腺嘌呤核苷酸单体的光接枝生态阻燃棉织物制备及其性能

李娜1, 王晓1(), 李振宝1, 李佥2, 杜冰1   

  1. 1.大连工业大学 纺织与材料工程学院, 辽宁 大连 116034
    2.大连工业大学 生物工程学院, 辽宁 大连 116034
  • 收稿日期:2021-02-23 修回日期:2022-04-13 出版日期:2022-07-15 发布日期:2022-07-29
  • 通讯作者: 王晓
  • 作者简介:李娜(2000—),女,硕士生。主要研究方向为纺织品生物阻燃整理。
  • 基金资助:
    国家自然科学基金青年基金项目(51803017);辽宁省教育厅科学研究经费项目(面上项目)(LJKZ0530)

Preparation and properties of photografted flame-retardant cotton fabrics with modified adenine nucleotide

LI Na1, WANG Xiao1(), LI Zhenbao1, LI Qian2, DU Bing1   

  1. 1. College of Textile and Materials Engineering, Dalian Polytechnic University, Dalian, Liaoning 116034, China
    2. College of Biological Engineering, Dalian Polytechnic University, Dalian, Liaoning 116034, China
  • Received:2021-02-23 Revised:2022-04-13 Published:2022-07-15 Online:2022-07-29
  • Contact: WANG Xiao

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摘要：

为了提高核糖核酸(RNA)单元应用于棉织物阻燃整理的耐久性以及降低生物阻燃成本,采用烯丙基溴对RNA单元衍生物5'-腺嘌呤核苷酸(AMP)进行改性制备生物阻燃单体。通过紫外光接枝法将AMP单体和AMP单体/丙烯酰胺分别接枝到纯棉织物上,制备了光接枝AMP单体和光接枝AMP单体/丙烯酰胺阻燃棉织物。对阻燃单体化学结构进行了表征。测试了纯棉织物及阻燃棉织物的阻燃性能。研究结果表明:AMP单体中成功引入不饱和双键;2种光接枝阻燃棉织物的分解温度均低于纯棉织物,阻燃棉织物的失重率降低;光接枝AMP单体/丙烯酰胺阻燃棉织物的续燃时间及阴燃时间可降低至0 s,AMP单体与丙烯酰胺之间存在一定的协效阻燃作用且可降低成本。

关键词: 腺嘌呤核苷酸, 丙烯酰胺, 光接枝, 棉织物, 阻燃性能

Abstract:

In order to improve the durability of ribonucleic acid (RNA) unit applied to flame-retardant cotton fabrics and to reduce the cost of biological flame retardant treatment, a RNA unit derivative, 5'-adenine nucleotide (AMP), was modified with allyl bromide to prepare biological flame retardant monomer. The AMP monomer and AMP monomer/acrylamide were grafted on pristine cotton fabrics via photografting to prepare flame retardant cotton fabrics with AMP monomer and AMP monomer/acrylamide, respectively. The chemical structure of flame retardant monomer was characterized; the flame retardant properties of pristine cotton fabrics and flame retardant cotton fabrics were measured. The research results show that unsaturated double bonds were successfully introduced into AMP monomer. The decomposition temperature of the two photografted flame-retardant cotton fabrics was lower than that of pristine cotton fabric, and the weight loss of flame-retardant cotton fabrics was reduced. The after-flame time and after-glow time of flame-retardant cotton fabric photografted with AMP monomer/acrylamide were both decreased to 0 s. There is a certain synergistic flame retardant effect between AMP monomer and acrylamide leading to a lower cost.

Key words: adenine nucleotide, acrylamide, photografting, cotton fabric, flame retardancy

中图分类号: 

  • TS195.5

图1

AMP和AMP单体的红外光谱图"

图2

AMP单体质谱图"

图3

AMP单体的3种取代反应"

表1

光照时间对阻燃性能的影响"

光照时间/min 质量增加率/% 续燃时间/s 阴燃时间/s
4 3.2 2.2 0
5 3.6 1.2 0
6 3.3 2.1 0
7 3.1 2.8 0

表2

光引发剂用量对阻燃性能的影响"

TPO质量分数/% 质量增加率/% 续燃时间/s 阴燃时间/s
3 2.9 4.9 0
4 3.0 4.7 0
5 3.6 1.2 0
6 3.2 2.1 0
7 3.1 2.3 0

图4

棉织物的表面形貌(×2 000)"

图5

光接枝AMP单体阻燃棉织物能谱图"

图6

棉织物TGA曲线"

表3

棉织物TGA数据分析"

样品 质量损失率10%
时的分解温度/℃		 最大分解
温度/℃		 质量损
失率/%
纯棉原织物 259.2 333.4 98.5
光接枝AMP单体阻燃棉织物 235.6 296.8 80.6
光接枝AMP单体/丙烯酰胺阻燃棉织物 207.7 298.7 84.0

图7

棉织物燃烧后残炭扫描电镜照片(×2 000)"

图8

棉织物燃烧残炭的拉曼光谱图"

表4

光接枝阻燃棉织物阻燃性能比较"

样品 洗涤
时间/min		 质量增
加率/%		 续燃
时间/s		 阴燃
时间/s
纯棉原织物 — — 4.8 41.2
光接枝AMP单体/
丙烯酰胺阻燃棉织物		 — 8.3 0 0
光接枝AMP单体
阻燃棉织物		 — 3.6 1.2 0
10 3.1 2.6 0
20 2.7 3.5 0
30 2.5 3.9 0.3
40 2.4 4.0 0.5

图9

棉织物垂直燃烧残炭图"

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