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以N,N’-亚甲基双丙烯酰胺为交联剂,过硫酸钾为引发剂,丙烯酸(AA)和丙烯酰胺(AM)为单体,采用水溶液聚合法合成出钠基膨润土复合聚丙烯酸钠-丙烯酰胺复合吸水树脂。研究了钠基膨润土的添加量、交联剂用量、引发剂用量、中和度及AM的用量对吸水倍率的影响。结果表明,钠基膨润土用量为40%,交联剂用量为0.025%,引发剂用量为0.3%,AM用量为12%及AA的中和度为80%时,吸蒸馏水倍率与吸收0.7%NaCl溶液倍率分别为422.28 g/g和65.80 g/g。
Using N, N’-methylenebisacrylamide as crosslinking agent, potassium persulfate as initiator and acrylic acid (AA) and acrylamide (AM) as monomers, sodium bentonite complex polyacrylic acid was synthesized by aqueous solution polymerization Sodium - acrylamide composite absorbent resin. The effects of sodium bentonite addition amount, crosslinking agent dosage, initiator dosage, neutralization degree and AM dosage on water absorption ratio were studied. The results showed that when the amount of sodium bentonite was 40%, the amount of crosslinking agent was 0.025%, the amount of initiator was 0.3%, the amount of AM was 12% and the degree of neutralization of AA was 80%, the ratio of distilled water to distilled water absorbed 0.7% NaCl Solution magnifications were 422.28 g / g and 65.80 g / g, respectively.