具有网络结构高吸水性树脂的低耗合成与表征

Low Loss Synthesis and Characterization of Superabsorbent with Interpenetrating Structure

以丙烯酸、丙烯酰胺、2-丙烯酰胺基-2-甲基丙磺酸为单体,N,N-亚甲基双丙烯酰胺为交联剂,采用氧化还原引发剂和水溶液聚合法制备高吸水性树脂。实验结果表明:丙烯酸中和度为80%,单体质量配比为5.0∶5.0∶2.0,单体总浓度为35%,引发剂浓度为0.5%,交联剂浓度为0.55%时,合成树脂的吸水能力较强,并对其结构进行了红外光谱和SEM基本表征。

A supcrabsorbent was prepared by solution polymerization method using acrylate acid, acrylamide and AMPS as monomer, NMBA as cross-linker and oxidiation-reduction initiator. The results showed that the performance of the superabsorbent product was superior when the acrylate acid＇s neutralization degree was 80%, monomer mass ration was 5.0 ： 5.0 ： 2.0, monomer concentration was 35 %, initiator concentration was 0.5 %, and cross-linker concentration was 0.55 %. Furthermore, the infrared absorption spectroscopy and SEM anMysis to its structure wcre done.