聚合条件对羧甲基纤维素、玉米淀粉双母体高吸水性树脂性能的影响  

EFFECT OF POLYMERIZATION CONDITION ON PROPERTIES OF SUPERABSORBENT POLYMER WITH CARBOXYMETHYL CELLULOSE AND CORN STARCH

作　　者：李蜀眉[1] 田维平[1] 塔娜[1] 温国华[2] 刘润芝 李佳[2] 目仁更[2] 

机构地区：[1]内蒙古农业大学,呼和浩特010018 [2]内蒙古大学化学化工学院,呼和浩特010021

出　　处：《内蒙古农业大学学报（自然科学版）》2008年第2期166-168,共3页Journal of Inner Mongolia Agricultural University(Natural Science Edition)

基　　金：内蒙古自然科学基金项目(200408020214)

摘　　要：采用自由基聚合法,以过硫酸铵为引发剂,N,N'-亚甲基双丙烯酰胺为交联剂,羧甲基纤维素及玉米淀粉与丙烯酸进行自由基接枝共聚合成吸水剂。并详细考察了中和丙烯酸时,KOH的用量及中和度对高吸水性树脂吸收能力的影响。实验表明:丙烯酸的中和度为95%时,高吸水性树脂对纯水、自来水和生理盐水的吸收率有最高值,分别是592g/g、300g/g和99g/g。当氢氧化钾的中和百分比为1%时,高吸水性树脂对纯水、自来水和生理盐水有最高吸收率,分别为630g/g、340g/g和95g/g。Superabsorbent polymers was prepared from carboxymethyl cellulose and corn starch with acrylic acid by graft copolymerization in presence of persulfate ammonium as initiator and N,Nˊ-methylene diacrylamide as crosslinker.We have studied the influence of KOH quantity and counteract degree on superabsorbent polymers absorptivity when acrylic acid was counteracted.The result showed that superabsorbent polymers absorptivity for pure water,tap water and normal saline have the highest value,they are 592g/g、300g/g...

关 键 词：羧甲基纤维素(CMC) 玉米淀粉 接枝共聚 高吸水性树脂 

分 类 号：TQ324.8[化学工程—合成树脂塑料工业]