Journal of Textile Research ›› 2019, Vol. 40 ›› Issue (05): 7-11.doi: 10.13475/j.fzxb.20180307005

• Fiber Materials • Previous Articles     Next Articles

Synthesis and properties of antibacterial polyacrylonitrile nanofiber membrane

HUANG Chengbo, REN Xuehong()   

  1. School of Textiles and Clothing, Jiangnan University, Wuxi, Jiangsu 214122, China
  • Received:2018-03-29 Revised:2019-01-03 Online:2019-05-15 Published:2019-05-21
  • Contact: REN Xuehong E-mail:24375784@qq.com

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Abstract:

In order to prepare refractory antibacterial N-halamine polymer and apply in antibacterial polyacrylonitrile nanofiber membrane, 5,5-dimethylhydantoin(DMH)was selected to synthesize 3-(4'-vinylbenzyl)-5,5-dimethylhydantoin (VBDMH). Then VBDMH and methyl methacrylate (MMA) were polymerized to synthesize an antibacterial N-halamine polymer precusor. And antibacterial polyacrylonitrile nanofiber membrane was prepared from the polymer and polyacrylonitrile by mixing and electrospinning. Scanning electron microscopy. Fourier transform infrared spectroscopy, nuclear magnetic resonance and element analysis were adopts to characterize and analyze the polymer precusor and antibacterial polyacrylonitrile nanofiber membrane. The results showed that the diameter distribution of polymer obtained by emulsion polymerization is uniform, and the dispersion degree is low. The antibacterial test results show that the antibacterial nanofiber membrane can cause the inactivation of S. aureus and E. coli within 30 min. And the antibacterial property is improved by 20%-50%, compared with the original membrane.

Key words: nanoparticle, electrospinning, polyacrylonitrile, N-halamine polymer, antibacterial

CLC Number: 

  • TB34

Fig.1

SEM images of nanoparticles prepared at different reaction proportions(×10 000)"

Tab.1

Proportion of elements in nanopolymers of different proportions"

样品编号 C含量/% N含量/% n∶m
P10∶90 61.16 4.90 1∶3.00
P20∶80 62.13 5.53 1∶2.45
P30∶70 62.67 6.20 1∶1.92
P40∶60 63.73 7.71 1∶1.05

Fig.2

Structure formula(a)and 1H NMR(b)of poly(VBDMH-co-MMA) nanoparticles"

Fig.3

SEM images of nanofibers before (a) and after (b) chlorination(×5 000)"

Tab.2

Antibacterial effect of nanofibers"

试样 接触
时间/
min		 金黄色葡萄球菌 大肠杆菌
减少量/
%		 对数
减少值		 减少量/
%		 对数减
少值
氯化前 30 81.14 0.73 51.76 0.31
氯化后 1 79.83 0.70 53.10 0.32
5 81.79 0.74 54.44 0.34
10 90.89 1.04 84.59 0.81
30 99.72 2.55 100.00 6.00
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