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发明公开
CN105504636A 用于土遗址脱盐的吸水脱盐复合材料及其应用 无效 - 驳回

用于土遗址脱盐的吸水脱盐复合材料及其应用
摘要：
本发明公开了一种用于土遗址脱盐的吸水脱盐复合材料，该复合材料是通过将改性剂均匀分散入淀粉接枝丙烯酰胺类聚合物中得到的，改性剂为高岭土、分子筛、氧化铝或硅胶，且改性剂在复合材料中的重量百分比为1~40%；淀粉接枝丙烯酰胺类聚合物的制备方法如下：在去离子水中加入淀粉并不断搅拌使淀粉在去离子水中分散均匀，然后将上述体系在氮气保护下进行糊化处理至体系呈半透明胶体状，随后降温，加入引发剂引发反应，然后加入交联剂，在氮气保护下，反应物进行接枝聚合，即得凝胶状淀粉接枝丙烯酰胺类聚合物。另外，本发明还公开了该复合材料在含可溶盐类土遗址表面除盐方面的应用。本发明有效提高了可溶盐类的脱除效率。
摘要（英）：

The present invention discloses a water-absorption desalination composite material for soil relic desalination, wherein a modifier is uniformly dispersed in a starch grafted acrylamide polymer to obtain the composite material, the modifier is kaolin, a molecular sieve, alumina or silica gel, the modifier content in the composite material is 1-40 wt%, and the preparation method of the starch grafted acrylamide polymer comprises: adding starch to deionized water, continuously stirring to make the starch be uniformly dispersed in the deionized water, carrying out a gelatinization treatment on the system under nitrogen protection until the system presents a translucent colloid state, cooling, adding an initiator to initiate a reaction, adding a cross-linking agent, and carrying out grafting polymerization on the reactants under nitrogen protection so as to obtain the gelatinous starch grafted acrylamide polymer. The present invention further discloses applications of the composite material in desalination of the soil relic surface containing soluble salts. With the material of the present invention, the removal efficiency of the soluble salts is effectively improved.

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