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艾草/聚丙烯腈纳米纤维复合材料的制备及其超亲水、长久抗菌性能

柳洋 牛健行 李玉瑶 钱晓明 王亮 刘雍

柳洋, 牛健行, 李玉瑶, 等. 艾草/聚丙烯腈纳米纤维复合材料的制备及其超亲水、长久抗菌性能[J]. 复合材料学报, 2022, 39(5): 2258-2268. doi: 10.13801/j.cnki.fhclxb.20210701.003
引用本文: 柳洋, 牛健行, 李玉瑶, 等. 艾草/聚丙烯腈纳米纤维复合材料的制备及其超亲水、长久抗菌性能[J]. 复合材料学报, 2022, 39(5): 2258-2268. doi: 10.13801/j.cnki.fhclxb.20210701.003
LIU Yang, NIU Jianxing, LI Yuyao, et al. Preparation Artemisia/polyacrylonitrile nanofiber composites and their super-hydrophilic and long-term antibacterial properties[J]. Acta Materiae Compositae Sinica, 2022, 39(5): 2258-2268. doi: 10.13801/j.cnki.fhclxb.20210701.003
Citation: LIU Yang, NIU Jianxing, LI Yuyao, et al. Preparation Artemisia/polyacrylonitrile nanofiber composites and their super-hydrophilic and long-term antibacterial properties[J]. Acta Materiae Compositae Sinica, 2022, 39(5): 2258-2268. doi: 10.13801/j.cnki.fhclxb.20210701.003

艾草/聚丙烯腈纳米纤维复合材料的制备及其超亲水、长久抗菌性能

doi: 10.13801/j.cnki.fhclxb.20210701.003
基金项目: 国家自然科学基金面上项目(51573133);天津市高校基本科研业务费重点项目(2019ZD01)
详细信息
    通讯作者:

    刘雍,教授,博士生导师,研究方向为新型纤维材料的结构与性能调控 E-mail:liuyong@tiangong.edu.cn

  • 中图分类号: TB332

Preparation Artemisia/polyacrylonitrile nanofiber composites and their super-hydrophilic and long-term antibacterial properties

  • 摘要: 艾草是一种常见的中草药,其提取物−艾草精油存在挥发快、无法长期保持抑菌性等问题已成为制约其产业化应用的瓶颈。为解决上述问题,本论文利用水溶性艾草粉末,通过静电纺丝方法制备艾草/聚丙烯腈复合纳米纤维,并通过在线工艺与熔喷、热风非织造材料进行复合制备稳定性好、抑菌长久的复合过滤材料。对复合材料的润湿性、抗菌性、透气过滤效率以及单向导湿等性能进行了测试,并与添加艾草精油材料进行了比较。结果表明:艾草粉末的添加使得复合材料具有超亲水性,相比纯聚丙烯腈纳米纤维材料润湿时间缩短126倍;当艾草与聚丙烯腈质量比达到15∶15时,存放2个月后样品的抑菌性测试发现其对金黄色葡萄球菌的抑菌率达到99.5%,而相同条件下艾草精油挥发较快,抗菌性能和持久性较低,可以看出艾草纳米纤维材料具有优异的抗菌和阻隔性能;熔喷材料与艾草/聚丙烯腈纳米纤维材料复合,单向导湿指数可高达988.96%。有望解决纤维材料夏天热集中、冬天湿冷和细菌繁殖等问题,在口罩、敷料和医用防护服等领域上有着广阔应用前景。

     

  • 图  1  艾草/聚丙烯腈 (艾草/PAN) 纳米纤维材料制备过程及抗菌示意图

    Figure  1.  Preparation process and antibacterial diagram of Artemisia/polyacrylonitrile (Artemisia/PAN) nanofiber material

    PAN—Polyacrylonitrile; DMF—N, N-Dimethylformamide

    图  2  艾草精油挥发实验图

    Figure  2.  Experimental diagram of volatilization for Artemisia essential oil

    图  3  水溶性艾草粉末宏观 (a) 及微观 (b) 形貌图

    Figure  3.  Macroscopic (a) and microscopic (b) morphology of water-soluble Artemisia powder

    图  4  不同质量比的艾草/PAN纳米纤维材料SEM图像

    Figure  4.  SEM images of Artemisia/polyacrylonitrile nanofiber materials with different mass ratio

    图  5  艾草粉末、PAN和其混合物红外图谱对比

    Figure  5.  FT-IR spectra of Artemisia powder, PAN and their mixtures

    图  6  ((a), (b)) 熔喷材料和纳米纤维材料可弯折性; (c)熔喷材料与不同质量比艾草/PAN 纳米纤维材料的拉伸性能对比;(d) 不同质量比艾草/PAN纳米纤维润湿性能图

    Figure  6.  ((a), (b)) Bendability of melt-blown materials and Artemisia/PAN nanofiber; (c) Comparison of tensile properties of melt-blown materials and different mass ratio Artemisia/PAN nanofibers; (d) Wettability diagram of different mass ratio Artemisia/PAN nanofibers

    图  7  不同质量比的艾草/PAN纳米纤维材料抑菌圈图

    Figure  7.  Bacteriostatic zone experiment of Artemisia/PAN nanofiber materials with different mass ratio

    (a) 0∶15; (b) 5∶15; (c) 10∶15; (d) 15∶15

    图  8  熔喷材料和不同质量比艾草/PAN纳米纤维材料在无菌空间中进行细菌穿透流程示意图

    Figure  8.  Schematic diagram of bacterial penetration process of melt-blown materials and different mass ratio Artemisia/PAN nanofiber materials in a space free of bacteria

    图  9  熔喷材料 (a) 和不同质量比艾草/PAN ((b)~(d)) 纳米纤维材料细菌穿透效果图

    Figure  9.  Bacterial penetration effect of melt-blown materials (a) and different mass ratio Artemisia/PAN nanofiber materials ((b)-(d))

    图  10  不同质量比的艾草/PAN纳米纤维材料抗菌效果图 (图上数字为抗菌性能)

    Figure  10.  Antibacterial effect pictures of Artemisia/PAN nanofiber materials with different mass ratios (Numeric percentages in figures are antibacterial properties)

    (a) 0∶15; (b) 5∶15; (c) 10∶15; (d) 15∶15

    图  11  (a)不同厚度熔喷艾草纳米纤维复合材料在不同压强下的透气率;(b) 不同厚度熔喷艾草纳米纤维复合材料对于不同粒径颗粒物的过滤效率

    Figure  11.  (a) Air permeability of melt-blown Artemisia nanofiber composites with different thickness under different pressures; (b) Filtration efficiency of melt-blown Artemisia nanofiber composites with different thickness for different particle sizes

    图  12  熔喷材料和艾草纳米纤维复合材料水分扩散位置与时间关系

    Figure  12.  Relationship between water diffusion position and time of melt-blown material and Artemisia nanofiber composites material

    图  13  (a) 不同厚度热风艾草纳米纤维复合材料在不同压强下的透气率;(b) 不同厚度热风艾草纳米纤维复合材料对于不同粒径颗粒物的过滤效率

    Figure  13.  (a) Air permeability of Artemisia nanofiber composites with different thickness under different pressures; (b) Filtration efficiency of Artemisia nanofiber composites with different thickness for different particle sizes

    表  1  不同中草药纤维材料抗菌数据对比

    Table  1.   Comparison of Antibacterial data for different Chinese herbal medicine fiber materials

    Fiber materialAntibacterial rate/%Antibacterial substanceFiber scaleSpinning process
    Mint fiber[30] 96.4 Mint essential oil Micron Wet spinning
    Artemisia fiber[31] 80.9 Artemisia powder Micron Wet spinning
    Grass coral fiber[32] 83.6 Sarcandra glabra extract Micron Wet spinning
    Sophora flavescens fiber[33] 95.5 Sophora flavescens Micron Wet spinning
    Daqingye fiber[34] 95.6 Folium isatidis extract Micron Wet spinning
    This work 99.5 Artemisia powder Nanometer Electrospinning
    下载: 导出CSV

    表  2  熔喷材料和艾草纳米纤维复合材料内外润湿数据

    Table  2.   Internal and external wetting data of melt-blown material and Artemisia nanofiber composites

    Surface (interior)Underlying (external)
    Soaking time/s 60.0 4.212
    Water absorption rate/(%·s−1) 0 38.7176
    Maximum wetting radius/mm 0 10.0
    Liquid water diffusion rate/(mm·s−1) 0 1.2621
    One-way transmission capability/% 988.9622
    下载: 导出CSV
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出版历程
  • 收稿日期:  2021-05-06
  • 修回日期:  2021-06-05
  • 录用日期:  2021-06-21
  • 网络出版日期:  2021-07-01
  • 刊出日期:  2022-03-23

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