FUNCTIONAL FIBROUS MEMBRANE, METHOD FOR MANUFACTURING SAME, FILTER COMPRISING SAME

A novel fibrous membrane provided by the present invention comprises at least one substrate layer comprising at least 80% by weight of microfibers that carry positively charged and/or negatively charged functional groups, and at least one layer of filtration material attached to the substrate layer, wherein the layer of filtration material comprises at least 80% by weight of nanofibers that carry negatively charged and/or positively charged functional groups. The fibrous membrane is able to remove or reduce the concentration of bacteria, viruses and heavy metals while maintaining relatively higher water flow. The filter comprising the fibrous membrane and a method for manufacturing the fibrous membrane are also provided. 本发明提供了一种新型纤维膜，包括至少一个基底层，该基底层包含占重量至少80％的携带正电和/或负电的官能团的微纤维，以及附着于该基底层的至少一层过滤材料层，其中过滤材料层包括占重量至少80％的携带负电和/或正电官能团的纳米纤维。纤维膜能够去除或减少细菌、病毒和重金属的浓度，同时保持较高的水通量。本发明还涉及包括该纤维膜的过滤器和制造该纤维膜的方法。