聚羧酸类高效减水剂分子结构类型及改性研究进展  

Research Process in the Molecular Structure of Polycarboxylate-type High Performance Superplasticizer and its Modifications

作　　者：王锦之[1] 温中印 曹建鹏[1] 罗振扬[1] 

机构地区：[1]南京林业大学理学院,南京210037

出　　处：《高分子通报》2015年第2期26-31,共6页Polymer Bulletin

基　　金：江苏高校优势学科建设工程资助项目

摘　　要：聚羧酸类高效减水剂(PCEs)因其优异的减水性能已成为现今混凝土外加剂最热门的课题之一。本文按发展历程对四类不同分子结构的PCEs进行了介绍,对比了此四类PCEs的合成方法及性能,综合国内外研究探讨了PCEs在保坍、减缩、早强、引气、敏感性等方面问题,提出了多种切实可行的解决方法,并结合材料的构效关系从绿色环保、材料性价比及市场需求等方面对其研究进行了展望。As the polycarboxylate-type high performance superplasticizer(PCEs)has the excellent performance on the water reducing,nowadays it has been one of the hottest researches on the concrete admixtures.In the paper,four different molecular structures of PCEs were detailed specified basing on the development history.Meanwhile,there is a contrast about the synthesis of four PCEs and the pros and cons of their performance.According to the problems focused on its poor abilities,such as slump,shrinkage rage,early strength,air entraining and sensibility,which have been studied both at home and abroad.And varieties of feasible solutions have been provided.At last,other aspects of PCEs,such as environmental protection,material price and market demand,have also been briefly described and prospected in the paper.

关 键 词：减水剂 聚羧酸 分子结构 改性 

分 类 号：TU528.042.2[建筑科学—建筑技术科学]