羧甲基纤维素接枝AM和DMC制备高吸水性树脂研究  

Study on Preparation of Superabsorbent Resin of Carboxymethyl Cellulose-g-AM-DMC

作　　者：周智敏[1] 颜学敏[1] 赵庆美[1] 

机构地区：[1]长江大学化学与环境工程学院,湖北荆州434020

出　　处：《化学与生物工程》2009年第5期60-62,共3页Chemistry & Bioengineering

基　　金：长江大学校基金资助项目

摘　　要：采用水溶液聚合法,以(NH4)2S2O8-NaHSO3为引发剂、N,N′-亚甲基双丙烯酰胺(NMBA)为交联剂,单体丙烯酰胺(AM)和甲基丙烯酰氧乙基三甲基氯化铵(DMC)与羧甲基纤维素(CMC)接枝共聚,制得含有阳离子和非离子亲水基团的耐盐高吸水性树脂,研究了聚合反应条件对树脂吸水性能的影响。结果表明,在m(AM):m(DMC)=3:1、CMC加量为单体质量的4%～5%、引发剂占单体质量的0.3%～0.4%、交联剂占单体质量的0.5%、聚合温度为55～60℃、反应时间为3～4h的优化反应条件下,所得树脂吸去离子水率为430g·g-1,吸0.9%NaCl盐水率为86g·g-1。The superabsorbent and salt-resistant resin, which contained cationic and non-ionic hydrophilic groups, was synthesized with monomers acrylamide（AM）and [2-（methylacryloyloxy）ethyl] trimethylammonium chloride（DMC） grafted onto carboxymethyl cellulose（CMC） by solution polymerization, using ammonium persulfate-sodium bisulfite as initiator and N, N＇-methylenebisacrylamide（NMBA） as crosslinking agent. The factors affecting the water absorbent capacity of the resin were investigated in detail. The experimental results showed that the optimal reaction conditions were as follows：re（AM） ： m（DMC）=3 ： 1 ,CMC amount 4%-5% of mass of monomers, initiator amount 0.3%-0.4% of mass of monomers and crosslinking agent amount 0.5% of mass of monomers,reaction temperature 55-60℃ ,reaction time 3-4 h. The superabsorbent resin obtained under above conditions had the absorbent capacity of 430 g·g^-1 in deionized water and of 86 g·g^-1 in 0.9 % NaCl solution.

关 键 词：高吸水性树脂 羧甲基纤维素 接枝共聚 水溶液聚合 

分 类 号：TQ316.333[化学工程—高聚物工业]