STUDY ON PREPARATION AND PROPERTIES OF PVA/AgNPs COMPOSITE NANOFIBER MASK MATERIAL

In this paper, the preparation and properties of polyvinyl alcohol (PVA)/silver nanoparticles (AgNPs) composite nanofiber mask material were studied. Firstly, PVA spinning solution was prepared, and PVA nanofibers with different mass fractions (5 wt%, 7 wt%, 8 wt%, 9 wt% and 11 wt%) were prepared by electrospinning technology. The morphology of PVA nanofibers was observed under electron microscope, and the results showed that 8 wt% PVA nanofibers had the best morphology. AgNPs with different mass fractions (0.02 wt%, 0.03 wt%, 0.04 wt%, 0.05 wt% and 0.06 wt%) were dispersed in pure water and blended with 8 wt% PVA solution to prepare PVA/AgNPs composite nanofibers by electrospinning. The effects of different mass fractions of AgNPs on the morphology of PVA/AgNPs composite nanofibers were analyzed. Infrared spectroscopy and X-ray diffraction were used to test the PVA/AgNPs composite nanofibers. PVA/AgNPs composite nanofiber mask fabric was prepared by using activated carbon nonwoven fabric as substrate. The filterability, air permeability and moisture permeability of PVA/AgNPs composite nanofiber mask material were tested and analyzed. The result showed that PVA/AgNPs composite nanofiber mask material has good filtration, moisture permeability and air permeability, and has broad application prospects.

本文研究了聚乙烯醇（PVA）/银纳米颗粒（AgNPs）复合纳米纤维掩模材料的制备及性能。首先，制备PVA纺丝溶液，并通过电纺丝技术制备出具有不同质量分数（5 wt％，7 wt％，8 wt％，9 wt％和11 wt％）的PVA纳米纤维。在电子显微镜下观察了PVA纳米纤维的形貌，结果表明：8 wt％的PVA纳米纤维具有最好的形貌。将具有不同质量分数（0.02 wt％，0.03 wt％，0.04 wt％，0.05 wt％和0.06 wt％）的AgNP分散在纯水中，并与8 wt％PVA溶液混合，通过电纺丝制备PVA / AgNPs复合纳米纤维。分析了不同质量分数的AgNPs对PVA / AgNPs复合纳米纤维形态的影响。红外光谱和X射线衍射用于测试PVA / AgNPs复合纳米纤维。以活性炭非织造布为基材，制备了PVA / AgNPs复合纳米纤维面膜面料。测试分析了PVA / AgNPs复合纳米纤维面膜材料的过滤性能，透气性和透湿性。结果表明，PVA / AgNPs复合纳米纤维面膜材料具有良好的过滤性，透湿性和透气性，具有广阔的应用前景。

Published: 2020

Journal ：Digest Journal of Nanomaterials and Biostructures

Impact Factor：0.872

Paper link: https://chalcogen.ro/299_ZhangX.pdf