小麦秸秆接枝AA/AM高吸水树脂的结构及性能  

Structure and Properties of Wheat Straw Grafted-poly(AM/AM) Superabsorbent

作　　者：罗雷[1] 万涛[1] 熊磊[1] 孙萌萌[1] 覃莉莉[1] 胡俊燕[1] 谭雪梅[1] 

机构地区：[1]成都理工大学矿产资源化学高校重点实验室材料与化学化工学院,四川成都610059

出　　处：《广州化工》2013年第4期60-63,共4页GuangZhou Chemical Industry

基　　金：四川省科技支撑计划项目编号(No.2010GZ0128);地质灾害防治与地质环境保护国家重点实验室基金项目(No.SKLGP2012K004);成都理工大学优秀创新团队培育计划项目

摘　　要：以过硫酸铵和亚硫酸氢钠为氧化还原引发剂,采用水溶液聚合将丙烯酸、丙烯酰胺和马来酸酐改性秸秆(MWS)接枝共聚制备了小麦秸秆复合高吸水树脂。结果表明随着MWS含量的增加,秸秆复合高吸水树脂吸水率和吸水速率呈现先增后降的趋势,MWS含量高达25%的秸秆复合高吸水树脂吸水率仍为435 g.g-1,秸秆复合高吸水性树脂10 min吸水率410 g.g-1左右,50 min平衡吸水率781 g.g-1。Wheat straw composite superabsorbent was prepared by graft copolymerization among acrylic acid, acrylamide and maleic anhydride -modified wheat straw （MWS） in aqueous solution, using ammonium persulfate and sodium bisulfite as redox initiators. The results showed that water absorbency and gel strength of the wheat straw composite superabsorbent increased and then decreased with increasing MWS amount. Wheat straw composite superabsorbent with 25% MWS still had water absorbency of 435 g/g. Wheat straw composite superabsorbent had water absorbency of 435 g/g within 10 min and equilibrium water absorbency of 781 g/g within 50 min.

关 键 词：高吸水树脂 小麦秸秆 接枝 溶液聚合 马来酸酐 

分 类 号：O645.1[理学—物理化学]