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以棉籽蛋白、丙烯酸和丙烯酰胺为主要原料,N,N’-亚甲基双丙烯酰胺为交联剂,过硫酸钾-亚硫酸氢钠为引发剂,采用溶液聚合法制备了棉籽蛋白接枝共聚丙烯酸-丙烯酰胺高吸水性树脂[P(CP-g-AA/AM)],并对其较佳工艺条件以及综合吸水性能进行了考察。结果表明,制备P(CP-g-AA/AM)的适宜条件为:wCP∶wAA+AM=10%、w交联剂∶wAA+AM=0.1%、w引发剂∶wAA+AM=1.0%、wAA∶wAM=75∶25、AA中和度为80%、反应温度60℃、反应时间2h。在此条件下合成的P(CP-g-AA/AM)树脂在去离子水中的饱和吸水倍率为1130g/g。
Using cottonseed protein, acrylic acid and acrylamide as main raw materials, N, N’-methylenebisacrylamide as crosslinking agent and potassium persulfate-sodium bisulfite as initiator, cottonseed protein grafted Copolymer of acrylic acid - acrylamide superabsorbent [P (CP-g-AA / AM)], and its better process conditions and comprehensive water absorption were investigated. The results showed that the optimal conditions for the preparation of P (CP-g-AA / AM) were wCP: wAA + AM = 10% , WAA:wAM = 75:25, AA degree of neutralization is 80%, reaction temperature is 60 ℃, reaction time is 2h. Under these conditions, the saturated water absorption capacity of P (CP-g-AA / AM) resin synthesized in deionized water was 1130 g / g.