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.
出处
《化学与生物工程》
CAS
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
关键词
高吸水性树脂
羧甲基纤维素
接枝共聚
水溶液聚合
superabsorbent resin
carboxymethyl cellulose
graft copolymerization
solution polymerization
