采用丙烯酸、丙烯酰胺、高岭土为接枝物淀粉为单体,通过水溶液共聚法制备复合型耐盐高吸水性树脂。分别考察引发剂、交联剂、高岭土、丙烯酰胺和丙烯酸用量对样品吸水倍率的影响,确定最佳配方,制备样品在去离子水、0.9%NaCl和1.5%NaCl中的吸水倍率分别达到1215倍、125倍和105倍。 Acrylic acid, acrylamide and kaolin were used as graft starch to prepare composite salt-tolerant superabsorbent polymer by aqueous solution copolymerization. The effects of initiator, crosslinking agent, kaolin, acrylamide and acrylic acid on the water absorption capacity of the sample were investigated. The optimal formula was determined. The water absorption capacity of the prepared sample in deionized water, 0.9% NaCl and 1.5% NaCl respectively reached 1215 times , 125 times and 105 times.