一种新型聚羧酸分散剂的制备与性能研究  

Preparation and Properties of a Novel Polycarboxylic Acid Dispersant

作　　者：王响 吴鹏 蔡文君 张磊 顾忠良 Wang Xiang;Wu Peng;Cai Wenjun;Zhang Lei;Gu Zhongliang(Wuhu Hongma New Material Co.,Ltd.,Wuhu,Anhui,241000,China)

机构地区：[1]芜湖弘马新材料有限公司,芜湖241000

出　　处：《塑料助剂》2021年第3期25-28,共4页Plastics Additives

摘　　要：通过分子设计,合成了一种新型的对硅微粉(硅灰)具有良好分散性的聚羧酸分散剂,并与传统的磷酸盐类分散剂以及巴斯夫FS20分散剂、普通梳状结构聚羧酸分散剂进行对比,对其性能进行研究。研究表明:本文制备的新型的含短支链低相对分子质量的聚羧酸系分散剂,对于硅微粉和高铝水泥均具有良好的分散性,可用于含硅微粉的低水泥浇注料,提高浇注料的工作性。A novel polycarboxylic acid dispersant for silica fume synthesized by molecular design was compared with the conventional phosphate-based dispersant and the BASF FS20 and the general polycarboxylic acid dispersant with comb-like structure.The research shows that the novel polycarboxylic acid dispersant with low-molecular-weight and short branched-chain has good dispersibility for the silica fume and the high-alumina cement,and can be used for the low cement castables containing silica powder so as to improve the working property of the castables.

关 键 词：硅微粉 硅灰 聚羧酸分散剂 低水泥浇注料 

分 类 号：TQ175.4[化学工程—硅酸盐工业]