摘要
本文采用甲基烯丙基聚氧乙烯基醚（HPEG）、丙烯酸（AA）及蔗糖为原料,在引发剂作用下,以较低温度（40~45℃）合成一种低成本缓凝型聚羧酸减水剂。研究发现,蔗糖取代10%的聚醚参与反应时所得到的减水剂性能最好。并对该合成样品进行了多种检测实验和FT-IR、GPC等结构表征。该合成样品具有成本低、减水率高、保坍性及缓凝效果好等优点。
A new kind of inexpensive polycarboxylate superplasticizer with retarding effect was synthesized by reaction of methyl allylpolyethenoxy（HPEG）,acrylic acid with sucrose in the presence of initiator at low temperature（40~45 centigrade）.The results showed that the performance of polycarboxylate superplasticizer produced by the reaction was best when 10% of methyl allylpolyethenoxy（HPEG） was replaced by sucrose.The synthesized samples were used to carry out test experiments and the structural characterization of FT-IR, GPC etc.Also, it has low cost, high water-reducing capability,fine slump-retaining ability and retarding effect.
出处
《中国建材科技》
2016年第4期47-49,共3页
China Building Materials Science & Technology
