【摘 要】
：
以壳聚糖(CTS),丙烯酸(AA),丙烯酰胺(AM)为原料,N,N-亚甲基双烯酰胺(MBAM)为交联剂,NaH-SO3/K2S2O8氧化还原体系为引发剂,通过接枝共聚合反应制备高吸水性树脂。较佳制备条件
【机 构】
：
陕西科技大学教育部轻化工助剂化学与技术重点实验室,
论文部分内容阅读
以壳聚糖(CTS),丙烯酸(AA),丙烯酰胺(AM)为原料,N,N-亚甲基双烯酰胺(MBAM)为交联剂,NaH-SO3/K2S2O8氧化还原体系为引发剂,通过接枝共聚合反应制备高吸水性树脂。较佳制备条件为:m(CTS)∶m(AA)∶m(AM)为1∶3∶1,丙烯酸的中和度为70%,引发剂用量4%,交联剂用量0.04%,反应温度45℃。研究表明,此条件下所得树脂吸水率为402g/g,吸盐水(浓度0.9%)率为102g/g,并最后采用红外光谱、扫描电镜表征分析了树脂的结构。
A novel redox system was synthesized by using chitosan (CTS), acrylic acid (AA) and acrylamide (AM) as raw materials and N, N-methylenebisacrylamide as crosslinking agent and NaH-SO3 / K2S2O8 redox system as initiator , Prepared by graft copolymerization superabsorbent resin. The preparation conditions are as follows: m (CTS): m (AA): m (AM) is 1: 3: 1, degree of neutralization of acrylic acid is 70%, amount of initiator is 4%, amount of crosslinking agent is 0.04% Temperature 45 ℃. The results showed that the water absorption of this resin was 402 g / g and the rate of brine absorption (concentration 0.9%) was 102 g / g. Finally, the structure of the resin was analyzed by FTIR and SEM.
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