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季铵盐接触型水性聚氨酯的制备及其抗菌性能

张乐兴 李婷 东为富

张乐兴, 李 婷, 东为富. 季铵盐接触型水性聚氨酯的制备及其抗菌性能[J]. 功能高分子学报,2022,35(6):575-582 doi: 10.14133/j.cnki.1008-9357.20220316001
引用本文: 张乐兴, 李 婷, 东为富. 季铵盐接触型水性聚氨酯的制备及其抗菌性能[J]. 功能高分子学报,2022,35(6):575-582 doi: 10.14133/j.cnki.1008-9357.20220316001
ZHANG Lexing, LI Ting, DONG Weifu. Preparation of Waterborne Polyurethane Bonded with Quaternary Ammonium Salts and Antibacterial Properties via Contact-Killing[J]. Journal of Functional Polymers, 2022, 35(6): 575-582. doi: 10.14133/j.cnki.1008-9357.20220316001
Citation: ZHANG Lexing, LI Ting, DONG Weifu. Preparation of Waterborne Polyurethane Bonded with Quaternary Ammonium Salts and Antibacterial Properties via Contact-Killing[J]. Journal of Functional Polymers, 2022, 35(6): 575-582. doi: 10.14133/j.cnki.1008-9357.20220316001

季铵盐接触型水性聚氨酯的制备及其抗菌性能

doi: 10.14133/j.cnki.1008-9357.20220316001
基金项目: 国家自然科学基金面上项目(21975108)
详细信息
    作者简介:

    张乐兴(1998—),男,安徽六安人,硕士生,主要研究方向为抗菌聚氨酯材料。E-mail:6200612107@stu.jiangnan.edu.cn

  • 中图分类号: TQ323.8

Preparation of Waterborne Polyurethane Bonded with Quaternary Ammonium Salts and Antibacterial Properties via Contact-Killing

  • 摘要: 以叔胺化合物3-二甲胺基-1,2-丙二醇为扩链剂、甲基丙烯酸羟乙酯(HEMA)为封端剂,将叔胺基团、不饱和基团键合到聚氨酯(PU)分子链上,并采用不同烷基链长卤代烷与叔胺基团发生季铵化反应引入亲水性基团,经紫外光固化,制备了水性聚氨酯(WPU)抗菌薄膜。利用红外光谱仪、纳米粒度分析仪、光学接触测试仪等对WPU分散液及其薄膜的结构与性能进行表征,通过震荡摇瓶、抑菌圈进行抗菌性能测试,并探究了叔胺化合物对材料性能的影响。结果表明:当叔胺化合物质量分数为9%、烷基链长为12时,WPU通过接触分别对大肠杆菌、金黄色葡萄球菌的抗菌率达99.5%以上,并表现出优异的抗菌持久性能。此外,所制备的水性聚氨酯材料还具有良好的力学性能。

     

  • 图  1  WPU分散液的合成过程

    Figure  1.  Synthesis process of WPU dispersion

    图  2  WPU的红外谱图

    Figure  2.  FT-IR spectra of WPU

    图  3  WPU薄膜的接触角

    Figure  3.  Water contact angle of WPU film

    图  4  光固化WPU薄膜的(a)TGA与(b)DTG曲线

    Figure  4.  (a) TGA and (b) DTG curves of UV-curable WPU films

    图  5  WPU薄膜的抗菌性能

    Figure  5.  Antibacterial properties of WPU films

    图  6  样品对大肠杆菌与金黄色葡萄球菌的抗菌实验结果照片

    Figure  6.  Sample photos of antibacterial test results against E. coli and S. aureus

    图  7  (a)PU-8与(b)WPU-10-12薄膜对大肠杆菌的抑菌圈数码照片

    Figure  7.  Bacteriostatic circles digital photos of (a) PU-8 and (b) WPU-10-12 films against E. coli

    图  8  WPU薄膜的应力-应变曲线

    Figure  8.  Stress-strain curves of WPU films

    表  1  季铵盐类水性聚氨酯分散液的组分配比

    Table  1.   Component ratio of quaternary ammonium salt waterborne polyurethane dispersion

    Samplem(PCDL)/gm(PEG)/gm(IPDI)/gm(Chain extender)/gm(HEMA)/gm(1-Bromodecane)/gm(1-Bromododecane)/gV(H2O)/mL
    PU-87.294.866.251.80.66///
    WPU-8-107.294.866.251.60.663.8/60
    WPU-8-127.294.866.251.60.66/4.360
    WPU-9-107.004.666.541.80.704.2/60
    WPU-9-127.004.666.541.80.70/4.760
    WPU-10-106.704.476.832.00.734.6/60
    WPU-10-126.704.476.832.00.73/5.160
    下载: 导出CSV

    表  2  WPU分散液的粒径、分散系数和表面电位

    Table  2.   Mean size, PDI and surface potential of WPU dispersion

    Sample Mean size/nm PDI Surface potential/mV
    WPU-8-10 46.4 0.271 35.12
    WPU-8-12 64.7 0.386 30.51
    WPU-9-10 38.3 0.272 51.61
    WPU-9-12 40.7 0.293 44.71
    WPU-10-10 38.8 0.287 43.42
    WPU-10-12 51.1 0.303 33.92
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-03-16
  • 录用日期:  2022-04-08
  • 网络出版日期:  2022-04-15
  • 刊出日期:  2022-12-01

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