魔芋接枝丙烯酰胺-蒙脱土的合成及性能研究  

Synthesis and Property of Super Absorbent Composites KGM-AM-MMT

作　　者：杨海浪[1] 鲁俊[1] 

机构地区：[1]襄樊学院化学与生物科学系,襄樊441003

出　　处：《武汉理工大学学报》2007年第12期36-38,共3页Journal of Wuhan University of Technology

基　　金：湖北省教育厅重点科研基金(D200625004)

摘　　要：以魔芋(KGM)和丙烯酰胺(AM)为原料,用硝酸铈铵做引发剂,N,N′-亚甲基双丙烯酰胺(MBAAm)为交联剂,在钠基蒙脱土(MMT)悬浮液中,进行KGM接枝AM的聚合反应,制得KGM-AM-MMT复合材料。探讨了聚合物和单体、粘土、交联剂用量和pH值等因素对材料吸水性能的影响。结果表明当w(KGM)∶w(AM)=1∶4,MMT用量为KGM的20%,引发剂用量为单体质量0.5%,交联剂用量为单体质量2.5%,pH为8时,该复合材料具有超强吸水和保水性能,其吸水率达620倍,保水率达97%。Using ammonium cericnitrate and N, N＇-methylenebisacrylamide（MBAAm） as an initiator and a cross-linker respectively, a supper absorbent composites KGM AM-MMT was prepared by graft polymerization of acrylamide（AM） on Konjac glucomannan（KGM） in the present of sodium montmorillonite （MMT） suspension. The influence of the polymer, the monomer, the MMT, the cross-linker and pH value on absorbent properties was discussed. The results showed that the water absorbent rate of the sample was 620 and the water remained rate of the sample was 97% when the component was proper to the experiment.

关 键 词：魔芋 丙烯酰胺 粘土 接枝共聚 超吸水复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]