Preparation method of nicandra physaloides gum/polyvinyl alcohol composite hydrogel with porous structure

The invention discloses a preparation method of nicandra physaloides gum/polyvinyl alcohol double-network composite hydrogel with a porous structure. The hydrogel is prepared from the following raw materials by mass: nicandra physaloides gum:polyvinyl alcohol:deionized water:glutaraldehyde:calcium ions:hydrochloric acid=(0.001-0.05 g):(0.95-0.999 g):(6-10 g):(50-200 [mu]L): (10-600 [mu]L):(100-600 [mu]L). The porous double-network hydrogel disclosed by the invention shows stable desalination efficiency and excellent sewage treatment capacity in a solar water purification technology. 本发明公开了一种多孔结构的假酸浆胶/聚乙烯醇双网络复合水凝胶的制备方法，所述水凝胶制备原料质量比如下：假酸浆胶：聚乙烯醇：去离子水：戊二醛：钙离子：盐酸＝0.001-0.05g：0.95-0.999g：6-10g：50-200μL：10-600μL：100-600μL。本发明多孔双网络水凝胶在太阳能净水技术中表现出稳定的脱盐效能和优异污水处理能力。