无N2下合成钠基膨润土／P(AA-AM)复合吸水树脂的研制  

Study on bentonite-Na/P(AA-AM)composite water-absorbing resin without netrogen

作　　者：姚丽霞[1] 武占省[1] 陶晶[1] 岳海涛[1] 李春[1] 

机构地区：[1]石河子大学农学院/新疆兵团化工绿色过程重点实验室,石河子832003

出　　处：《化工新型材料》2008年第5期76-78,共3页New Chemical Materials

基　　金：新疆特殊环境微生物重点实验室开放课题(No.XJYS0203-2005-03);教育部“新世纪优秀人才支持计划”(NCET-04-0989)

摘　　要：以N,N’-亚甲基双丙烯酰胺为交联剂,过硫酸钾为引发剂,丙烯酸(AA)和丙烯酰胺(AM)为单体,采用水溶液聚合法合成出钠基膨润土复合聚丙烯酸钠-丙烯酰胺复合吸水树脂。研究了钠基膨润土的添加量、交联剂用量、引发剂用量、中和度及AM的用量对吸水倍率的影响。结果表明,钠基膨润土用量为40%,交联剂用量为0.025%,引发剂用量为0.3%,AM用量为12%及AA的中和度为80%时,吸蒸馏水倍率与吸收0.7%NaCl溶液倍率分别为422.28 g/g和65.80 g/g。Bentonite-Na/Poly（acrylate-acrylamide） composite water-absorbing resin was synthesized by a aqueous solution polymerization with N, N＇-methylene bisacrylamide as crosslinker, K2 S2 O8 as initiator, and acrylic acid and acrylamide as monomers. When Acrylic acid was 10g, the effects of Bentonite-Na, crosslinker, initiator, neutralizaiton degree of acrylic acid and acrylamide on water absorbency was investigated. The results showed that Bentonite-Na of 40%, crosslinker. of 0. 025%, initiator of 0. 3%, neutralizaiton degree 80% and AM of 1.2% ,and the highest distilled water absorbency and 0. 7wt % NaC1 solution absorbency were 422. 28g/g and 65.80g/g , respectively.

关 键 词：复合吸水树脂 N N’-亚甲基双丙烯酰胺 钠基膨润土 

分 类 号：TQ324.8[化学工程—合成树脂塑料工业]