熔喷聚丙烯驻极体过滤材料对医用消毒剂的耐受性研究

Study on Stability of Melt-Blown Polypropylene Electret Nonwoven Used as Air Filter Soaked in Disinfector

本文在前期工作的基础上,采用浸泡方法研究了材料在医用消毒剂作用下的过滤效率稳定性。结果表明:经双氧水、苯酚、戊二醛、含氯消毒剂、硼酸、甲醛、过氧乙酸和消毒酒精等医用消毒剂浸泡后,其过滤效率几乎不会衰减。但材料用洗洁精和洗衣粉清洗时,其过滤性能下降较大。因此,熔喷聚丙烯驻极体过滤材料在医用环境中使用具备良好的稳定性,可作为医用防护口罩的首选材料,并建议作为一次性呼吸防护用品使用。

In this paper its stability of filtration efficiency is investigated when the melt-blown polypropylene electret nonwoven is soaked in disinfector solution. The results show that its filtration efficiency decline little after soaked for 24 hours in hydrogen peroxide, phenol, glutaraldehyde, chlorine-containing disinfectant, boracic acid, formaldehyde, peroxyacetic acid and pilyvinyl alcohol. However, its filtration efficiency displays a marked decay when it is soaked in washing-up liquid and detergent powder. It can be come to a conclusion that melt- blown polypropylene electret nonwoven is a kind of favorable facepiece respirator materials when used in medicine environment, however, it is proposed as a disposable respiratory protection production.