高岭土/柠檬酸复合高吸水树脂的制备及性能研究

天津农学院学报 ›› 2015, Vol. 22 ›› Issue (3): 28-31.

高岭土/柠檬酸复合高吸水树脂的制备及性能研究

孟励, 尹立辉^*, 周奎, 冯兵, 陆金凤, 邱兆伦

1. 天津农学院 a. 基础科学学院,b. 化学实验教学中心,天津 300384

收稿日期:2015-04-14 发布日期:2015-09-30
通讯作者: 国家级大学生创新创业训练计划项目“丙烯酸类复合高吸水树脂的制备及吸水性能研究”（201410061113）
作者简介:孟励（1991-）,女,贵州独山人,本科在读,主要从事有机化学方面的研究工作。E-mail：719801164@qq.com。
基金资助:
尹立辉（1973-）,男,黑龙江五大连池人,副教授,博士,主要从事有机化学方面的教学与研究工作。E-mail：ylhui1973@163.com。

Preparation and Study on Kaoline/Citric Acid Complex Superabsorbent Resin

MENG Li, YIN Li-hui^*, ZHOU Kui, FENG Bing, LU Jin-feng, QIU Zhao-lun

1. Tianjin Agricultural University, a. College of Basic Science, b. Chemistry Experiment Teaching Center, Tianjin 300384, China

Received:2015-04-14 Published:2015-09-30

摘要/Abstract

摘要： 采用水溶液聚合法,以N,N-亚甲基双丙烯酰胺(NMBA)为交联剂、过硫酸钾(KPS)为引发剂、丙烯酸（AA）和丙烯酰胺（AM）为单体,添加一定比例的高岭土和柠檬酸,通过发生共聚交联反应制备高岭土/柠檬酸复合高吸水树脂。试验探讨了高岭土和柠檬酸的质量比、单体质量比、交联剂用量、引发剂用量、反应温度和丙烯酸中和度对复合树脂吸水率的影响。结果表明,当m（高岭土）∶m（柠檬酸）=1∶2、m（AA）∶m（AM）=4∶1、交联剂用量为0.06%、引发剂用量为0.2%、反应温度为70 ℃、AA中和度为65%时,复合高吸水树脂的最大吸水率为965 g·g^-1,最大吸盐水率为105 g·g^-1。

关键词: 复合高吸水树脂, 高岭土, 柠檬酸, 吸水率

Abstract: A superabsorbent resin was synthesized by aqueous solution polymerization with acrylic acid, acrylamide, kaoline and citric acid as substrates, N, N- methylene bisacrylamide (NMBA) as crosslinker, and potassium persulfate (KPS) as initiator. The influences of mass ratio of kaoline and citric acid, the monomer ratio, the content of crosslinking agent, the amount of initiator, reaction temperature and neutralization degree of acrylic acid were studied. The results show that the optimal reaction conditions are as follows. The mass ratio of kaoline to citric acid was 1: 2, the mass ratio of acrylic acid to acrylamide was 4: 1, the amount of crosslinker was 0.06%, the amount of initiating agent was 0.2%, the reaction temperature was 70 ℃, and the neutralization degree of acrylic acid was 65%. Under such conditions, absorbency of the resin in distilled water and NaCl solution were 965 and 105 g·g^-1, respectively.

Key words: superabsorbent resin, kaoline, citric acid, water absorption

中图分类号:

O632.51

孟励, 尹立辉, 周奎, 冯兵, 陆金凤, 邱兆伦. 高岭土/柠檬酸复合高吸水树脂的制备及性能研究[J]. 天津农学院学报, 2015, 22(3): 28-31.

MENG Li, YIN Li-hui, ZHOU Kui, FENG Bing, LU Jin-feng, QIU Zhao-lun. Preparation and Study on Kaoline/Citric Acid Complex Superabsorbent Resin[J]. Journal of Tianjin Agricultural University, 2015, 22(3): 28-31.

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http://xuebao.tjau.edu.cn/CN/Y2015/V22/I3/28

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