衣康酸-丙烯酰胺高吸水树脂的合成  

Synthesis of itaconic acid-acrylamide composite superabsorbent

作　　者：成青[1] 胡自然 谢建军[1] 

机构地区：[1]中南林业科技大学材料科学与工程学院,湖南省长沙市410004 [2]湖南城际铁路有限公司,湖南省长沙市410004

出　　处：《合成树脂及塑料》2012年第1期36-39,共4页China Synthetic Resin and Plastics

摘　　要：用过硫酸钾做引发剂,通过水溶液聚合法制得了淀粉/膨润土接枝衣康酸(IA)和丙烯酰胺(AM)高吸水树脂。研究了m(AM)/m(IA),IA,交联剂用量及引发剂用量等对吸液性能的影响。在固定反应温度70℃,反应时间为6～10 h的条件下,吸水的最佳条件为:m(AM)/m(IA)为9.3∶0.7,IA中和度为75%,交联剂质量为单体总质量的0.05%,引发剂过硫酸钾(KPS)质量是单体总质量的0.30%。吸生理盐水的最佳条件为:m(AM)/m(IA)为9.1∶0.9,IA中和度为75%,交联剂质量为单体总质量的0.03%,引发剂KPS质量是单体总质量的0.50%。The starch/bentonite grafted itaconic acid（IA）-acrylamide（AM） superabsorbent was prepared via solution polymerization with potassium persulfate as initiator.The influences of the mass ratio of AM to IA,neutralization degree of IA,crosslinker and initiator dosages on the liquid suction performance of the superabsorbent were studied.In case of setting the reaction temperature at 70 ℃ and reaction time at 6-10 h,the optimum conditions for water-absorbing were as follows： the mass ratios of AM to IA,the crosslinker to monomers and the initiator to monomers were 9.3 ∶ 0.7,0.05%,0.30%,respectively,and the neutralization degree of IA was 75%.The optimum conditions for normal saline-absorbing were as follows： the mass ratio of AM to IA,the crosslinker to monomers and the initiator to monomers were 9.1 ∶ 0.9,0.03%,0.50%,respectively,and the neutralization degree of IA was 75% under the same conditions of reaction temperature and time.

关 键 词：吸水树脂 丙烯酰胺 衣康酸 淀粉 膨润土 

分 类 号：TQ324.8[化学工程—合成树脂塑料工业]