Journal of Textile Research ›› 2020, Vol. 41 ›› Issue (06): 14-20.doi: 10.13475/j.fzxb.20191002807

• Fiber Materials • Previous Articles     Next Articles

Preparation and antibacterial property of polyacrylonitrile antibacterial composite nanofiber membranes

JIA Lin1(), WANG Xixian1, TAO Wenjuan1, ZHANG Haixia1, QIN Xiaohong1,2   

  1. 1. College of Textiles, Henan University of Engineering, Zhengzhou, Henan 450007, China
    2. College of Textiles, Donghua University, Shanghai 201620, China
  • Received:2019-10-14 Revised:2020-03-10 Online:2020-06-15 Published:2020-06-28

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Abstract:

In order to study and analyze the effects of different antibacterial agents on polyacrylonitrile (PAN) antibacterial nanofibers and further develop functional nanofiber textiles, PAN/triclosan (PAN/TCS) and PAN/TiO2 antibacterial composite nanofiber membranes were prepared through electrospinning technology, and their morphologies and properties were tested and analyzed using scan electron microscope, and Fourier infrared spectrometer. The results show that compared with pure PAN nanofiber membrane, the diameter of PAN/TCS and PAN/TiO2 antibacterial nanofiber membrane decreases by 39%-71%, and the tensile strength increase by 12%-88%. PAN/TCS composite nanofibers show a bacteriostatic zone of more than 1 mm for Staphylococcus aureus and Escherichia coli. However, no bacterial inhibition zone is found in PAN/TiO2 composite nanofibers because TiO2 is a non-soluble antibacterial agent. The antibacterial rates of PAN/TCS and PAN/TiO2 composite nanofibers on Staphylococcus aureus and Escherichia coli reach more than 91.98%, and the inhibitory rates increase when the mass fractions of triclosan and TiO2.

Key words: polyacrylonitrile, nanofiber, triclosan, TiO2, electrospinning, antibacterial property

CLC Number: 

  • TS102.6

Fig.1

SEM images of PAN antibacterial composite nanofibers(×10 000)"

Tab.1

Average diameter and standard deviation of PAN antibacterial composite nanofibersnm"

样品编号 直径平均值 直径标准差
1# 887.20 68.40
2# 539.15 45.34
3# 467.95 36.73
4# 261.50 49.24
5# 322.40 70.56

Fig.2

FT-IR spectra of PAN antibacterial composite nanofibers"

Fig.3

Stress-strain curves of electrospun antibacterial composite nanofibrous membranes"

Fig.4

Qualitative test results of aluminum foil and PAN antibacterial nanofibers on Escherichia coli (a) and Staphylococcus aureus(b)"

Tab.2

Width of antibacterial composite nanofibers on Escherichia coli and Staphylococcus aureusmm"

样品编号 大肠杆菌 金黄色葡萄球菌
1# — —
2# 5.13 8.75
3# 7.48 10.73
4# — —
5# — —

Fig.5

Quantitative test results of PAN antibacterial nanofibers on Escherichia coli. (a) 2#; (b) 3#; (c) 4#; (d) 5#; (e) Controlled sample"

Fig.6

Quantitative test results of PAN antibacterial nanofibers on Staphylococcus aureus. (a) 2#;(b) 3#; (c) 4#; (d) 5#; (e) Controlled sample"

Tab.3

Inhibition rate of PAN composite nanofibers on Escherichia coli and Staphylococcus aureus%"

样品编号 对大肠杆菌抑菌率 对金黄色葡萄球菌抑菌率
2# 99.99 99.99
3# 99.99 99.99
4# 91.98 94.73
5# 97.25 99.18
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