有氧状态下聚丙烯酸钠高吸水性树脂的合成  

Synthesis of sodium polyacrylate superabsorbent in oxygen-containing atmosphere

作　　者：李淑琴[1] 朱书全[1] 

机构地区：[1]中国矿业大学北京校区化学与环境工程学院,北京100083

出　　处：《现代化工》2003年第z1期151-153,共3页Modern Chemical Industry

摘　　要：在有氧状态下采用溶液聚合法合成了聚丙烯酸钠高吸水性树脂,比较了温度、引发剂用量对单体混合物形成凝胶的时间以及树脂吸水倍率的影响,对有氧状态和无氧状态下聚合过程中的单体混合物的温度变化进行了对比,并测试了树脂的保水性能。Superabsorbent (sodium oolyacrylate) was synthesized by using the solution polymerization in oxygen-containing atmosphere. Effects of temperature and initiator concentration on gel time and water absorbency were discussed. Temperature changing of the monomer mixture during polymerization in oxygen-containing or no-oxygen atmosphere was compared. And the water retaining ability of resin under the high centrifugation was also tested.

关 键 词：聚丙烯酸钠 高吸水性树脂 有氧状态 

分 类 号：TQ326.1[化学工程—合成树脂塑料工业]