Surface Modification Method of Polypropylene nonwoven Fabrics for removing metalic ions

摘要

A method of surface modification of a PP membrane for removing metal ions, preferably silver ions, from an acidic solution is disclosed. (a) grafting PVP onto the PP surface using an electron beam while supporting the PP nonwoven fabric in the NVP solution; And, (b) by supporting the PVP grafted PP nonwoven fabric in a solution containing iodine to obtain an iodine complexed PP nonwoven fabric, it is possible to obtain a surface-modified PP nonwoven fabric effective in removing metal ions.