Mamun Al, Moulefera Imane, Topuz Yusuf, Trabelsi Marah, Sabantina Lilia
Junior Research Group "Nanomaterials", Faculty of Engineering and Mathematics, Bielefeld University of Applied Sciences, 33619 Bielefeld, Germany.
Laboratory of Technique and Science of Water, University of Mascara Mustapha Stambouli, 29000 Mascara, Algeria.
Materials (Basel). 2021 Aug 24;14(17):4788. doi: 10.3390/ma14174788.
The worldwide spread of coronavirus COVID-19 infections demonstrates the great need for personal protective equipment and, in particular, hygiene masks. These masks are essential for the primary protection of the respiratory tract against pathogens such as viruses and bacteria that are infectious and transmitted through the air as large droplets or via small airborne particles. The use of protective masks will continue to accompany humans for an indefinite period of time, and therefore there is an urgent need for a safe method to extend their usability by reusing them under perspective with minimal loss of protective properties. Nanofiber mats are widely used in masks and in this study the reusability of nanofiber mats is investigated by washing them at different temperatures. This paper shows the first measurements of the washability of nanofiber mats. Furthermore, the air permeability is measured, and the evaporation resistance is evaluated. According to the results of this study, the air permeability performance of nanofiber mats does not change significantly after washing, confirming the possibility of reuse.
新型冠状病毒COVID-19感染在全球范围内的传播表明，对个人防护装备，尤其是卫生口罩有着巨大需求。这些口罩对于呼吸道的初级防护至关重要，可抵御诸如病毒和细菌等病原体，这些病原体具有传染性，可通过大飞沫或空气中的小颗粒在空气中传播。防护口罩的使用将在不确定的时期内持续伴随人类，因此迫切需要一种安全的方法，通过在保证防护性能损失最小的前提下重复使用来延长其使用寿命。纳米纤维垫广泛应用于口罩中，在本研究中，通过在不同温度下清洗纳米纤维垫来研究其可重复使用性。本文展示了纳米纤维垫可洗涤性的首次测量结果。此外，还测量了透气率，并评估了抗蒸发性。根据本研究结果，纳米纤维垫洗涤后的透气性能没有显著变化，证实了其重复使用的可能性。
