| abstract |
The invention discloses a preparation method of a self-supporting oil-water separation hydrogel porous membrane: (1) synthesizing a non-porous first hydrogel, and soaking it in a synthetic solution of the second hydrogel to swell (2) Freeze the first hydrogel containing the synthesis solution of the second hydrogel, and initiate the polymerization of the second hydrogel; (3) After the polymerization is complete, melt the ice crystals to obtain self-supporting Oil-water separation hydrogel porous membrane. The hydrogel porous membrane prepared by the invention has good mechanical properties, and the pore size and porosity are continuously adjustable, and can be applied to different oil-water mixtures. |