一种混凝土缓凝剂合成及性能研究  

Synthesis and Performance Study of a Concrete Retardant

作　　者：刘雅卓 田明 王君 谭亮 杨洪 陈志豪 贺治权 LIU Ya-zhuo;TIAN Ming;WANG Jun;TAN Liang;YANG Hong;CHEN Zhi-hao;HE Zhi-quan(Hunan Zhongyan Building Material Technology Co.,Ltd.,Changsha Hunan 410600,China)

机构地区：[1]湖南中岩建材科技有限公司,湖南长沙410600

出　　处：《辽宁化工》2023年第1期28-30,34,共4页Liaoning Chemical Industry

摘　　要：根据分子结构可设计性的特点,选用水溶液自由基聚合方法,采用过硫酸铵构成的高温引发体系,设计并合成了缓凝剂HN-1。优化结果表明,在合成温度60℃、引发剂用量为单体质量的0.9%、pH=7、m(EPEG)∶m(SHP)=1∶0.05的最佳反应条件下,合成出的缓凝剂的综合性能最佳。According to the characteristics of molecular structure designability, the retarder HN-1 was designed and synthesized by using aqueous solution free radical polymerization and high temperature initiation system composed of ammonium persulfate.The results showed that under the optimum reaction conditions including the synthesis temperature 60 ℃,initiator dosage 0.9% of monomer mass, pH=7, m(EPEG)∶m(SHP)=1∶0.05, the synthesized retarder had the best comprehensive performance.

关 键 词：缓凝剂 合成 缓凝性能 

分 类 号：TU528.042.3[建筑科学—建筑技术科学]