缓凝型改性淀粉基减水剂的合成与性能研究  

Study on the Synthesis and Performance of Retarding Modified Starch-based Water Reducer

作　　者：钱亚杰 曹利敏 万秀琴 QIAN Ya-jie;CAO Li-min;WAN Xiu-qin(Yixing Branch of Jiangsu Union Technical Institute,Yixing 214200,China;Jiangnan University,Wuxi 214000,China)

机构地区：[1]江苏联合职业技术学院宜兴分院,江苏宜兴214200 [2]江南大学,江苏无锡214000

出　　处：《混凝土与水泥制品》2021年第5期29-32,共4页China Concrete and Cement Products

基　　金：国家自然科学基金项目(20576015)。

摘　　要：通过淀粉琥珀酸单酯合成了缓凝型改性淀粉基减水剂(SSHE),分析了SSHE的结构特性和空间位阻效应,研究了SSHE的掺量和凝结时间对水泥净浆的流动度以及对水泥粒子的ξ-电势的影响。结果表明:SSHE是一种具有强缓凝作用的新型减水剂。The retarded modified starch-based water reducer(SSHE)was synthesized by starch succinate monoester,and the structural characteristics and steric hindrance effects of SSHE were analyzed.The influence of SSHE content and setting time on the fluidity of cement paste and theξ-potential of cement particles was studied.The results show that SSHE is a new type of water reducer with great retarding effect.

关 键 词：淀粉琥珀酸单酯 减水剂 分散机理 强缓凝作用 

分 类 号：TU528[建筑科学—建筑技术科学]