腐植酸钾/丙烯酸型保水剂的合成及性能研究  

Synthesis and performance of potassium humate/acrylic acid water-retaining agent

作　　者：魏友华 顾铭茜[2] 季燕[2] 陈洪龄[2] 

机构地区：[1]南京市第一中学,江苏南京210000 [2]南京工业大学化学化工学院,江苏南京210009

出　　处：《化学工程师》2013年第1期11-14,17,共5页Chemical Engineer

摘　　要：以腐植酸钾(KHA)与丙烯酸(AA)为原料,N,N-亚甲基双丙烯酰胺为交联剂,过K2SO4为引发剂,进行水溶液聚合,制备得到腐植酸钾/丙烯酸高吸水性保水树脂。研究了反应物比例、反应温度、交联剂、引发剂用量、中和度等因素对产物性能的影响。考察了产物的热稳定性、保水性能、耐电解质和重复使用性能。结果表明,树脂最大吸水率为609g.g-1,耐盐性良好,50℃环境温度下9h保水树脂仍有94.2%的保水率。Potassium humate/acrylic acid water retention resin was prepared from potassium humate and acrylic acid by aqueous polymerization with the crosslinking agent of N,N-methylene-bis-acrylamide and the initiator of potassium persulfate.The effect of reactant ratio,reaction temperature,the amount of cross-linking agent and initiator,and the neutralization degree were investigated.In addition,thermal stability,water retention and reuse ability of the products were studied.Results show that the maximum water absorption ability of potassium humate/acrylic acid superabsorbent resin was 609g·g-1 for distilled water.At the environment temperature 50℃,the water retention resin still have 94.2% of the water retention rate after 9 hour.

关 键 词：腐植酸钾 丙烯酸 吸水性树脂 保水剂 

分 类 号：TQ324.8[化学工程—合成树脂塑料工业]