交联型聚羧酸高性能减水剂的合成工艺研究  

Study on the synthesize of the new type Polycarboxylale superplasticizer with crosslined structure

作　　者：宋涛文[1] 庄思源[1] 葛文杰[1] 王之正[1] 智艳飞[1] 史志花[1] 王栋民[1] 王启宝[1] 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083

出　　处：《中国包装科技博览：混凝土技术》2011年第3期69-73,共5页China Science and Technology Review

摘　　要：从分子结构设计的角度出发，选择了一种具有双官能团结构的功能单体参与聚羧酸高性能减水剂的主链结构的合成，通过正交设计试验研究制备了一系列具有交联结构的聚羧酸高性能减水剂。试验结果分析表明该减水剂具有更优的分散性能及对各种水泥的适应性，正交分析得到最优组合为MAA与单体E的摩尔比1．5，链转移剂用量0．25％，引发剂用量1．65％。From the perspective of molecular design, we chose a kind of bifunctional monomer to parlicipate in the main chain of polycarboxylate superplasticizer. Synthesized a series of new type PC designed by the method of orthogonal experimental. The results showed that the supelplasticizer has better cement dispersing performance and adaptability of various cement. Orthogonal experimental results showed the optimal combination---the molar ratio of MAA and monomer E is 1.5, the dosage of chain transfer agent is 0.25%, the dosage of initiator is 1.65%.

关 键 词：交联结构 聚羧酸高性能减水剂 流动度 正交试验设计 适应性 

分 类 号：TQ463.4[化学工程—制药化工]