基于纳米铜-氧化锌的聚丙烯腈抗菌纤维制备及其性能

doi:10.19398/j.att.202202033

摘要/Abstract

摘要： 通过原位还原法将纳米铜(Cu NPs)和纳米氧化锌(ZnO NPs)相结合,制备得到具有高抗菌活性的复合抗菌剂Cu-ZnO NPs,并通过离心-静电纺丝技术制备得到Cu-ZnO/PAN纤维。利用扫描电子显微镜、透射电子显微镜以及X射线二维衍射仪等对Cu-ZnO NPs和Cu-ZnO/PAN纤维的微观形貌和晶体结构进行表征;采用抑菌圈实验和电子顺磁共振自旋捕获技术对Cu-ZnO/PAN纤维的抗菌机理进行分析。表征测试表明:成功制备得到高抗菌活性的Cu-ZnO NPs和Cu-ZnO/PAN纤维。Cu-ZnO/PAN纤维的抗菌性能和耐水洗性能测试结果表明:纤维在黑暗条件下具有较高的抗菌活性,抗菌剂质量分数为5%或以上的抗菌纤维对金黄色葡萄球菌和大肠杆菌的抗菌效果可达99%,且纤维洗涤50次后对大肠杆菌和金黄色葡萄球菌的抑菌率仍达到97%及以上,在抗菌领域具有发展潜力。

关键词: 纳米铜, 纳米氧化锌, 聚丙烯腈, 抗菌性能

Abstract: The composite antibacterial agent Cu-ZnO NPs with high antibacterial activity was prepared through combining copper nanoparticles (Cu NPs) and zinc oxide nanoparticles (ZnO NPs) by in situ reduction method, and Cu-ZnO/PAN fiber was prepared by centrifugation-electrospinning technology. The microscopic morphology and crystal structure of Cu-ZnO NPs and Cu-ZnO/PAN fibers were characterized by scanning electron microscopy, transmission electron microscopy and X-ray two-dimensional diffractometer. The antibacterial mechanism of Cu-ZnO/PAN fibers was analyzed by inhibition zone test and electron paramagnetic resonance spin trapping techniques. Characterization tests showed that Cu-ZnO NPs and Cu-ZnO/PAN fibers with high antibacterial activity were successfully prepared. The test results of the antibacterial properties and washing resistance of Cu-ZnO/PAN fibers displayed that the antibacterial fibers exhibited high antibacterial activity under dark conditions, and fibers with antimicrobial content of 5% or above had an antibacterial effect of 99% against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). Moreover, the antibacterial rates against E. coli and S. aureus could still be at larger than 97%, even if the fibers were washed for 50 times. Thus, the antibacterial fibers have development potential in the antibacterial field.

Key words: nano copper, nano zinc oxide, polyacrylonitrile, antibacterial properties

中图分类号:

TS151

方瑜, 李楠, 吕汪洋. 基于纳米铜-氧化锌的聚丙烯腈抗菌纤维制备及其性能[J]. 现代纺织技术, 2022, 30(6): 52-62.

FANG Yu, LI Nan, LÜ Wangyang. Preparation and performance of polyacrylonitrile antibacterial fibers based on nano copper-zinc oxide composites[J]. Advanced Textile Technology, 2022, 30(6): 52-62.

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