黄腐酸钾接枝丙烯酸/丙烯酰胺保水剂的制备和性能研究  

Preparation and Properties of Potassium Humate Grafted Acrylic Acid/Acrylamide Water-retaining Agent

作　　者：宋跃 靳瑞文 谷雨 刘小培[1] 王俊伟[1] 李中贤[1] 董学亮[1] 余学军[1] Song Yue;Jin Ruiwen;Gu Yu;Liu Xiaopei;Wang Junwei;Li Zhongxian;Dong Xueliang;Yu Xuejun(High&New Technology Research Center of Henan Academy of Sciences,Zhengzhou 450000;Yellow River Institute of Eco-Environmental Science,Zhengzhou 450000,China)

机构地区：[1]河南省科学院高新技术研究中心,河南郑州450000 [2]黄河生态环境科学研究所,河南郑州450000

出　　处：《广东化工》2022年第19期11-13,共3页Guangdong Chemical Industry

基　　金：河南省科技攻关(222102110296);河南省科学院重大科研项目聚焦项目(220102002);河南省科学院基本科研费(220602081)。

摘　　要：以黄腐酸钾(FA)为基体材料,丙烯酸(AA)和丙烯酰胺(AM)为接枝单体,过硫酸钾(KPS)引发和N,’N-亚甲基双丙烯酰胺(MBA)为交联剂的条件下,在水溶液中进行接枝聚合得到黄腐酸钾接枝丙烯酸/丙烯酰胺保水剂FA-g-AA-AM。该保水剂发挥了黄腐酸钾本身对提高土壤肥力的优势,同时具备保水功能。我们探究了引发剂和交联剂的添加量、丙烯酸中和度、单体的配比等反应条件对保水剂的性能影响。结果表明,交联剂添加量0.2w%、引发剂添加量3w%,在丙烯酸中和度为70%,丙烯酸/丙烯酰胺质量比2∶1的条件下得到的保水剂吸蒸馏水倍率为504 g/g,吸生理盐水的倍率达到了99 g/g,具有较好的保水效果。The water-retaining agent FA-g-AA-AM was prepared by using potassium humate(FA) as the matrix material, N,’N-methylenebisacrylamide(MBA)as the cross-linking agent, and potassium persulfate(KPS) initiating the graft polymerization of acrylic acid(AA) and acrylamide(AM) in aqueous solution. The water-retaining agent exerts the advantages of potassium humate in improving soil fertility, and has the function of water-retaining at the same time. We explored the effects of reaction conditions such as the addition amount of initiator and cross-linking agent, the degree of acrylic acid neutralization, and the ratio of monomers on the performance of the water-retaining agent. The results show that the water retention rate of the water retention agent obtained under the conditions of 0.2 w%crosslinking agent, 3 w% initiator addition, 70 % acrylic acid neutralization and 2∶1 acrylic acid/acrylamide mass ratio is 504 g/g, the suction rate of physiological saline reaches 99 g/g, which has a good water retention effect.

关 键 词：保水剂 黄腐酸钾 接枝聚合 丙烯酸 丙烯酰胺 

分 类 号：TQ[化学工程]