聚羧酸系高效减水剂:结构设计、应用技术与展望  

Polycarboxylate Superplasticizers:Structural Design,Application Technology,and Future Directions

作　　者：张岳 肖宇翀 马陈宇 Johann Plank 雷蕾 史才军 ZHANG Yue;XIAO Yuchong;MA Chenyu;Johann Plank;LEI Lei;SHI Caijun(Xi′an Hi-Tech Res.Inst.,Xi′an 710025,China;Key Laboratory for Green&Advanced Civil Engineering Materials and Application Technology of Hunan Province,College of Civil Engineering,Hunan University,Changsha 410082,China;TUM School of Natural Sciences,Technical University of Munich,Garching 85748,Germany)

机构地区：[1]西安高技术研究所,西安710025 [2]湖南大学土木工程学院,绿色先进土木工程材料及应用技术湖南省重点实验室,长沙410082 [3]慕尼黑工业大学,TUM自然科学学院,德国Garching 85748

出　　处：《硅酸盐学报》2025年第3期574-585,共12页Journal of The Chinese Ceramic Society

基　　金：湖南大学建筑安全与节能教育部重点实验室开放基金项目(2022BSEE00X)。

摘　　要：当前全球混凝土行业正致力于推动降碳、节能与减排,这一趋势加速了低碳胶凝材料的广泛应用。随着低碳胶凝材料技术的不断进步,开发适用于低熟料或无熟料胶凝体系的聚羧酸系减水剂(PCE)变得尤为重要。基于此,本文首先概述了PCE的分类、结构设计原理、合成方法及性能特点,探讨了PCE的最新应用进展与技术创新,特别强调了PCE在低碳掺合料胶凝体系中面临的应用挑战。最后,本文展望了PCE的技术前景及其在实现混凝土行业低碳转型中的重点发展方向。The global concrete industry is actively committed to promoting energy conservation and carbon emission reduction.This trend accelerates the widespread application of low-carbon binders.As a technology of low-carbon binders continues to advance,the development of polycarboxylate-based superplasticizer(PCE)suitable for low-clinker or clinker-free binding systems becomes increasingly important.This review represents the classification,the principle of structural design,synthetic methods,and performance characteristics of PCE.The latest development and technological innovation of PCE are described,in particular emphasizing on some challenges faced by PCE in specific application scenarios of low carbon blended cementitious system.The review also looks ahead to the technological prospects of PCE and its key development directions in achieving the low-carbon transformation of the concrete industry.PCE is a polymer designed via introducing different monomer types into its molecular main chain.These monomers include methoxy polyethylene glycol methacrylate(MPEG),allyl polyoxyethylene ether(APEG),methallyl polyoxyethylene ether(HPEG),isopentenyl polyethylene glycol ether(IPEG),and 4-hydroxybutyl vinyl polyoxyethylene ether(VPEG),each imparting distinct physical and chemical properties to PCE.For instance,MPEG-based PCE exhibits a remarkable water reduction rate and has a higher viscosity,thus restricting its application due to time-consuming synthesis.In contrast,VPEG-based PCE requires shorter synthetic time and lower reaction temperature,which demonstrates superior flowability and slump retention,making it suitable for application scenarios requiring prolonged water retention.Besides the choice of monomer types,the structural design of PCE involves other factors,i.e.,molecular weight,charge density,and side chain length,etc..These factors collectively determine the performance of PCE in cement-based materials,including workability,strength development,and long-term durability.The modifications to the main chain of PCE s

关 键 词：聚羧酸系减水剂 低碳掺合料胶凝体系 分子设计 工作性能 

分 类 号：TU528[建筑科学—建筑技术科学]