Electrostatically-charged nanofiber media and fabrication method thereof

Abstract

A charged multilayer nanofiber filter for air filtration and the fabrication method thereof is disclosed. The charged multilayer nanofiber filter has a plurality of charged nanofiber mats. Each of theplurality of charged nanofiber mats is obtained by charging nanofiber mats individually before assembling. The nanofiber mat comprises a nanofiber layer and a substrate layer. The plurality of charged nanofiber mats is assembled such that the nanofiber layers and the substrate layers are stacked together in an alternative manner. The charged multilayer nanofiber filter can be fabricated by electrospinning a polymer solution on the substrate layer to obtain a nanofiber mat, charging the nanofiber mat to obtain a charged nanofiber mat, and assembling a plurality of charged nanofiber mats to form the charged multilayer nanofiber filter. 公开了一种用于空气过滤的带电多层纳米纤维过滤器及其制造方法。该带电多层纳米纤维过滤器具有多个带电纳米纤维垫。所述多个带电纳米纤维垫中的每一个均是通过在组装之前分别对纳米纤维垫充电而获得。纳米纤维垫包括纳米纤维层和基底层。组装所述多个带电纳米纤维垫，使得纳米纤维层与基底层以交替的方式堆叠在一起。带电多层纳米纤维过滤器可以通过以下步骤来制造：在基底层上对聚合物溶液进行静电纺丝以获得纳米纤维垫；对纳米纤维垫充电以获得带电纳米纤维垫；以及组装多个带电纳米纤维垫以形成带电多层纳米纤维过滤器。