摘要
通过分析不同反应条件对聚羧酸高性能减水剂分散性的影响,得出最佳合成条件:滴加法投料,反应温度为60℃,丙烯酸和过硫酸铵的滴加时间为3+3.5h,保温时间为1h,反应物浓度为40%。在此条件下,合成了JK-129聚羧酸高性能减水剂并对其性能进行研究,结果表明:该产品具有掺量小、减水率较高、性能稳定等优点,是一种高性能环保产品。
Through analysis of the influence of different polycondensation conditions on polycarboxylatehigh-performance superplasticizer dispersing performance.The best synthetic conditions were obtained:feeding by dripping method,the reaction temperature is60℃,the time of adding acrylic acid and ammonium persulfater is3+3.5h,the holding time is1h,the reactant concentration is40%.JK-129polycarboxylate superplasticizer was synthesized under the above conditions and then its properties were studied.The experimental results indicated that JK-129has the advantages of low dosage,high water reducing rate,stable performance etc,it is a high performance and environmental friendly product.
作者
李小颖
肖宇领
米金玲
段炎红
孙伟丽
Li Xiaoying;XiaoYuling;Mi Jinling;Duan Yanhong;Sun Weili(Henan Provincial Academy of Building Research,Zhengzhou Henan 450053;New Materials Co.,Ltd.of Henan Provincial Academy of Building Research,Xinxiang Henan 453500)
出处
《河南科技》
2017年第13期133-136,共4页
Henan Science and Technology
基金
河南省重大科技专项"绿色低能耗成套关键技术研究及集成示范"(141100310301)
关键词
聚羧酸高性能减水剂
反应条件
分散性
polycarboxylatehigh-performance superplasticizer
polycondensation conditions
dispersing performance
作者简介
李小颖（1987-），女，硕士，工程师，研究方向：绿色建筑材料。
