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以羧甲基纤维素(CMC),丙烯酸(AA),2-丙烯酰胺-2-甲基丙磺酸(AMPS)为原料,过硫酸钾为引发剂,N,N′-亚甲基双丙烯酰胺为交联剂,经接枝共聚制备高吸水性树脂;为提高高吸水性树脂的耐热性能,使用分子筛对高吸水性树脂进行改性,探讨了分子筛种类和用量对高吸水性树脂性能的影响,测定了改性后高吸水性树脂的吸水倍率、吸水速率、再生性能和耐热性能,通过对其性能进行比较得出:添加0.5g的13X分子筛改性高吸水性树脂效果最佳,所得产物吸水倍率为675g.g-1,吸水速率、再生性能和耐热性能也比改性前有显著提高。
Using carboxymethyl cellulose (CMC), acrylic acid (AA), 2-acrylamide-2-methylpropanesulfonic acid (AMPS) as raw materials and potassium persulfate as initiator, N, N’-methylenedipropylene Amide as crosslinking agent to prepare superabsorbent polymer by graft copolymerization. In order to improve the heat resistance of superabsorbent polymer, molecular sieve was used to modify superabsorbent polymer. The effect of molecular sieve type and amount on superabsorbent polymer , The water absorption capacity, water absorption rate, regeneration performance and heat resistance of the modified superabsorbent resin were measured. By comparison of their properties, 0.5g 13X molecular sieve modified superabsorbent resin was the best , The resulting product water absorption ratio of 675g.g-1, water absorption rate, regeneration performance and heat resistance than before the modified significantly improved.