MA-IMPEG-AMPS三元共聚减水剂的合成及性能  

Study on the Synthesis of MA-IMPEG-AMPS Terpolymer Superplasticizer and its Performance

作　　者：窦琳[1] 王玲[2] 王自为[2] 

机构地区：[1]四川理工学院化学与制药工程学院,四川自贡643000 [2]山西大学化学化工学院,山西太原030006

出　　处：《浙江化工》2014年第5期22-26,共5页Zhejiang Chemical Industry

基　　金：四川理工学院校级科研项目(NO:2012KY11)

摘　　要：用自制酯化大单体甲氧基聚乙二醇衣康酸单酯,与马来酸酐、2-丙酰胺-2甲基丙磺酸在水溶液中共聚反应合成了含有羧基、酯基和聚氧乙烯基侧链的新型聚羧酸盐减水剂。结果表明,该新型减水剂因多引入了一个羧基,增大了羧基密度,减水率和保塌性均得到了提高。在掺量为1%,初始水泥净浆流动度为280 mm,初始塌落度达到220 mm,混凝土的抗压强度得到提高。With homemade esterification monomer IMPEG, MA and AMPS in aqueous solution copolymerization reaction in the synthesis of the containing carboxyl, ester and polyoxyethylene side chains of new type polycarboxylate superplasticizer. Results show that the new type of superplasticizer are introduced for more than a carboxyl, increases the density of carboxyl, water reducing rate and collapse are improved. The content is 1%, the initial fluidity of cement paste is 280 mm, the initial slump of 220 mm, the compressive strength of concrete was improved.

关 键 词：衣康酸酯化大单体 2-丙酰胺-2甲基丙磺酸 聚羧酸减水剂 

分 类 号：TU528.042.2[建筑科学—建筑技术科学]