纺织学报 ›› 2020, Vol. 41 ›› Issue (02): 89-94.doi: 10.13475/j.fzxb.20190307006

• 染整与化学品 • 上一篇    下一篇

甜菜碱聚合物的合成及其在棉织物抗菌整理中的应用

高思梦1,2,3, 王鸿博1,2,3(), 杜金梅1,2,3, 王文聪1,2,3   

  1. 1.江南大学 江苏省功能纺织品工程技术研究中心, 江苏 无锡 214122
    2.生态纺织教育部重点实验室(江南大学), 江苏 无锡 214122
    3.江南大学 纺织服装学院, 江苏 无锡 214122
  • 收稿日期:2019-03-24 修回日期:2019-06-20 出版日期:2020-02-15 发布日期:2020-02-21
  • 通讯作者: 王鸿博
  • 作者简介:高思梦(1995—),女,硕士生。主要研究方向为功能纺织材料。
  • 基金资助:
    国家重点研发计划资助项目(2017YFB0309100)

Synthesis of polybetaine antibacterial agent and its applications in cotton textiles finishing

GAO Simeng1,2,3, WANG Hongbo1,2,3(), DU Jinmei1,2,3, WANG Wencong1,2,3   

  1. 1. Jiangsu Engineering Technology Research Center of Functional Textiles, Jiangnan University, Wuxi, Jiangsu 214122, China
    2. Key Laboratory of Eco-Textiles(Jiangnan University), Ministry of Education, Wuxi, Jiangsu 214122, China
    3. College of Textiles and Clothing, Jiangnan University, Wuxi, Jiangsu 214122, China
  • Received:2019-03-24 Revised:2019-06-20 Online:2020-02-15 Published:2020-02-21
  • Contact: WANG Hongbo

摘要:

为解决现有甜菜碱抗菌剂在棉织物整理中抗菌效果不足的问题,制备了一种聚磺酸甜菜碱(PSPB-Am-AGE)抗菌整理剂并应用于棉织物的抗菌整理。利用正交试验分析了合成抗菌剂的温度、时间、引发剂用量和反应单体配比对其抑菌率的影响;采用活菌计数法测试了抗菌剂的最低抑菌浓度、抗菌整理后棉织物的抗菌性能及耐洗牢度。试验结果表明:合成该抗菌剂的最优工艺为反应温度70 ℃、反应时间4 h,甜菜碱与丙烯酰胺的量比为 2∶1,引发剂2%;PSPB-Am-AGE对大肠杆菌与金黄色葡萄球菌的最低抑菌质量浓度为2.625 g/L;红外谱图与扫描电子显微镜表征结果表明,PSPB-Am-AGE成功接枝到织物表面。整理后织物对大肠杆菌和金黄色葡萄球菌的抑菌率分别为96.25%和99.79%,经30次洗涤后抑菌率仍超过90%,耐洗涤性能优于AAA级抗菌纺织品。

关键词: 甜菜碱, 聚合, 棉织物, 抗菌整理, 抗菌剂

Abstract:

In order to enhance the antibacterial efficiency of the existing betaine antibacterial agent in cotton fabric finishing, a polysulfonatedbetaine antibacterial finishing agent (PSPB-Am-AGE) was prepared and applied on a cotton fabric for antibacterial property. The effects of temperature, time, amount of initiator, ratio of betaine and acrylamide monomer of synthesizing on the inhibition rate of PSPB-Am-AGE were investigated based on the use of the orthogonal experimental planning method. Counting viable bacteria method was used to test the minimum inhibitory concentration of PSPB-Am-AGE, antimicrobial properties and washing fastness of cotton fabrics after antimicrobial finishing. The optimum conditions for the synthesis are as follows: temperature is 70 ℃, the molar ratio of betaine to acrylamide is 2∶1, the amount of initiator is 2%, and the reaction time is 4 h. The result shows that the minimum inhibitory concentration (MIC) of PSPB-Am-AGE for Escherichia coli (E. coli) and Staphylococcus aureus (S.aureus) is 2.625 g/L. FT-IR and SEM confirmed that PSPB-Am-AGE is synthesized and successfully grafted onto the surface of the cotton fabric. It turned out that the antibacterial rates of the finished fabrics against E.coli and S.aureus are 96.25% and 99.79%. The bacterial reduction rates maintains to be over 90% against both bacteria even after 30 consecutive laundering cycles. The washing fastness test shows that treated cotton is better than that of AAA class antibacterial textiles.

Key words: betaine, polymerization, cotton fabric, antibacterial finishing, antibacterial finishing agent

中图分类号: 

  • TS195.5

表1

PSPB-Am-AGE合成正交试验"

水平 T/℃ t/h C D/%
1 60 4 1∶1 1
2 70 5 1∶2 1.5
3 80 6 2∶1 2

表2

PSPB-Am-AGE合成正交试验结果"

试验号 T t C D S. aureus
抑菌率/%
E.coli
抑菌率/%
1 1 1 1 1 98.968 96.577
2 1 2 2 2 99.492 98.421
3 1 3 3 3 99.997 99.993
4 2 1 2 3 99.999 98.095
5 2 2 3 1 99.999 98.641
6 2 3 1 2 99.999 99.997
7 3 1 3 2 99.999 99.999
8 3 2 1 3 99.999 91.416
9 3 3 2 1 81.739 81.239
k1 S.aureus 298.457 298.968 298.967 280.707
E.coli 294.991 294.672 287.990 276.457
k2 S.aureus 299.999 299.491 281.231 299.492
E.coli 296.733 288.478 277.755 298.418
k3 S.aureus 281.738 281.736 299.996 299.995
E.coli 272.655 281.229 298.634 289.504
R S.aureus 18.262 17.755 18.765 19.288
E.coli 24.078 13.443 20.879 21.961

图1

不同质量浓度PSPB-Am-AGE对应的S.aureus的存活率"

图2

不同质量浓度PSPB-Am-AGE对应的E.coli的存活率"

图3

PSPB-Am-AGE的FT-IR谱图"

图4

PSPB-Am-AGE整理前后棉织物的FT-IR谱图"

图5

PSPB-Am-AGE整理前后棉织物的SEM照片"

图6

PSPB-Am-AGE整理棉织物洗涤30次前后对大肠杆菌及金黄色葡萄球菌的抗菌效果图"

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