| abstract |
The present invention relates to liquid filter filtering materials and preparation method thereof, according to the present invention, it is fitted by the nanometer fiber net for making low weight with porous nonwoven cloth, to form thin filter layer, and the content of the nanofiber of per unit area is made to reach low weight, so that the pressure differential before and after filtering becomes smaller, inflow-rate of water turbine thus can be increased.The present invention filtering material be characterized in that, including：Porosity support body, plays the role of strength supports；And nanometer fiber net, it is laminated in the one side of above-mentioned porosity support body, above-mentioned nanometer fiber net is formed by the nanofiber of polymer substance, above-mentioned nanometer fiber net have make processed liquid by three-dimensional structure fine pores, the content of above-mentioned nanofiber is less than 5gsm. |