本文从聚羧酸系减水剂的主链、侧链和吸附基团等结构入手,介绍了聚羧酸减水剂独有的特点;对聚羧酸减水剂的分子结构特点和分散性能之间的关系进行了阐述,发现聚羧酸减水剂分子量的大小、侧链密度、侧链长度、侧链封端方式、侧链连接方式以及吸附基团对分散性能都有很大的影响;各单一分子结构特点之间对分散性能的影响也是相互制约或叠加的,并不是独立影响的。 In this paper, polycarboxylate superplasticizer from the main chain, side chains and adsorption groups and other structures to start, introduced the unique characteristics of polycarboxylate superplasticizer; Polycarboxylate superplasticizer molecular structure and dispersion properties The results show that the molecular weight of polycarboxylate superplasticizer, the side chain density, the side chain length, the side chain capping mode, the side chain connection mode and the adsorption group have a great influence on the dispersion performance ; The influence of each single molecular structure on the dispersion performance is also restricted or superimposed on each other, not independently.