一种新型聚羧酸保坍剂的合成及性能研究  

Study on preparation and properties of a new type of polycarboxylate slump retaining agent

作　　者：官梦芹 方云辉 蒋卓君 陈小路 代柱端 钟丽娜 

机构地区：[1]科之杰新材料集团有限公司,福建厦门361101

出　　处：《新型建筑材料》2017年第5期25-28,共4页New Building Materials

摘　　要：采用马来酸酐(MAH)、乳酸甲酯和对甲苯磺酸(PTS)进行酯化,将得到的酯化产物与丙烯酸羟丙酯(HPA)、4-羟丁基乙烯基聚氧乙烯醚(VPEG)、引发剂(APS)和链转移剂(TGA)一起共聚合成新型聚羧酸保坍剂。性能测试结果表明,该保坍剂具有较好的保坍性能、和易性和敏感性。A new polycarboxylate slump retaining agent was synthesized with two steps. The first,esterification of MAH（maleic anhydride） ,Methyl lactate and PTS. Then get the esterification products. The second,using the esterification products,hydroxypropyl acrylate （HPA）,4-hydroxybutyl vinyl ether（VPEG） as monomers,the persulfate （APS） as complex initiator, and thioglycolic acid （TGA） as chain transfer agent. The performance test shows that the new polycarboxylate slump retaining agent has good slump loss resistant property,good workability and sensitivity.

关 键 词：聚羧酸保坍剂 保坍性 敏感性 和易性 

分 类 号：TU528.042[建筑科学—建筑技术科学]