第 46 卷第 5 期 Vol. 46 No. 5 2016 年 10 月 Oct 2016

所属栏目：功能材料 丙烯酸／丙烯酰胺／丙烯腈三元共聚制备耐盐高吸水性树脂的研究

孙琪娟 （陕西工业职业技术学院 化工与纺织学院，陕西 咸阳 712000）

摘　要：采用过硫酸铵作为引发剂，N，N-二甲基双丙烯酰胺作为交联剂，通过水溶液共聚法制备了丙烯酸、丙烯酰胺、丙烯腈高吸水性共聚物，探讨了合成过程中各种影响因素对高吸水性树脂性能的影响。结果表明，当反应单体配比n（丙烯酸）∶n（丙烯酰胺）∶n（丙烯腈）=15∶4∶6，引发剂用量为单体总质量的0.05%，交联剂用量为单体总质量的0.015%，反应温度为80℃，反应时间为3 h，中和度为75%的条件下，所得高吸水性树脂的吸去离子水能力可达990 g／g以上，吸0.9%氯化钠溶液能力达190 g／g以上。

关键词：丙烯酸；丙烯酰胺；丙烯腈；共聚；高吸水性树脂

中图分类号：TQ325.1　　文献标识码：A　　文章编号：1009-9212（2016）04-0053-03

Preparation of Acrylic Acid/Acryl amide/Acrylonitrile Copolymer as Salt-resisting Super Absorbent Resin

SUN Qi-juan (Institute of Chemical Engineering and Textile, Shaanxi Polytechnic Institute, Xianyang 712000, China)

Abstract：Acrylic acid /acrylamide/acrylonitrile copolymer as salt-resisting super absorbent resin was prepared by water solution copolymerization. The ammonium persulfate was taking as the initiator and N,N’-ethylenebisacrylamide as the cross-linking agent. The influences of various factors on the properties of absorbent resin were discussed. The results showed that: when the reaction monomer mole ratio of n(acrylic acid): n(acrylamide) :n(acrylonitrile) was 15:4:6; a initiator dosage was 0.05% of the monomer; cross-linking agent was 0.015% of monomer; reaction temperature was of 80℃; reaction time was of 3 h; neutralization degree was of 75%; the absorption capacity of the resin was more than 990 g/g in case of deionized water and more than190 g/g in case of 0.9% NaCl solution.

Key words：acrylic acid; acrylamide; acrylonitrile; copolymerization; super absorbent resin

作者简介：孙琪娟（1967-），女，陕西富平人，副教授，主要从事精细化学品合成及工业水处理研究工作（E-mail：sqj68@163.com）。

收稿日期： 2016-03-0