摘要
通过研究聚羧酸减水剂单体聚醚反应催化剂,探索了在单体聚醚合成过程中不同催化剂的催化效率,以及催化后产品在聚羧酸减水剂合成过程中的应用效果。反应物甲基丙烯醇与环氧乙烷在相同物质的量比下,对比了NaOH、KOH、NaH和Na几种催化剂的催化情况,找出了每种催化剂的催化特点,确定了催化剂的最佳选择、生成副产聚乙二醇(PEG)最低的催化剂用量、温度对催化剂的影响等。最终通过聚羧酸减水剂的合成与水泥净浆流动度的测试,选择出了NaH在该合成中的催化综合性能为最佳。
Through study on polyether reaction catalyst of poly carboxylic acid water reducing gent, the catalytic efficiency of different catalysts in the synthesis of monomer polyether and the application effect of the product in the synthesis of poly carboxylic acid and water reducing agent are explored. In the same molar ratio of methyl alcohol and ethylene oxide, the reaction is compared with that of Naoh, KOH, Nail and Na catalysts, the catalytic characteristics of each catalyst are found. The best choice of catalyst, in the production of polyethylene glycol and effect of temperature on catalyst is determined. Finally, through the synthesis of poly carboxylic acid water reducing agent and test of cement paste fluidity, and the best cata- lytic pertormance of Nail in the synthesis is selected.
作者
徐仕睿
赵鑫
郝刚
XU Shirul ZHAO Xin HAO Gang(Fushun Dongke Fine Chemical Co. Ltd , Fushun 113123 , China Shanghai Dongda Chemical Co. Ltd , Jinshan 200540 , China)
出处
《河南化工》
CAS
2016年第10期24-26,共3页
Henan Chemical Industry
关键词
聚羧酸减水剂
单体聚醚
催化剂
poly carboxylic acid water reducing agent
monomer polyether
catalyst
