高分散高稳定BaTiO_3水基悬浮液制备的研究  

A study on preparation of highly dispersed and stabilized BaTiO_3 aqueous suspension

作　　者：邓斌[1] 李强国[1] 侯耀永[2] 

机构地区：[1]郴州师范高等专科学校化学系,湖南郴州423000 [2]青岛科技大学应用化学系,山东青岛266042

出　　处：《湘潭矿业学院学报》2003年第2期89-91,共3页Journal of Xiangtan Mining Institute

基　　金：湖南省教育厅高等学校科学研究项目(编号:01C010)

摘　　要：采用胶体电空间稳定机制改善陶瓷粉体的分散性,以聚合物电解质PMAA—NH_4为分散剂,利用Zeta电位、沉降实验、粘度测定和粒度分析等手段,研究了分散剂的用量和pH值对BaTiO_3水基悬浮液流变性的影响,并在最佳分散剂用量和pH值条件下,制备出了高分散高稳定的BaTiO_3水基悬浮液。图4,参11。In this paper,polyelectrolytes PMAA-NH4 was used as dispersant. The rheological properties of Ba-TiO3 suspensions and the effect of dispersant concentration and pH value on suspension stability were studied by means of zeta potential measurements (Sedimentation experiments, viscosity measurements and particle-size analysis etc. At last,the stabilized and dispersed suspension was prepared at the best pH value ( = 9. 0)and dispersant concentration. So a new way for preparing BaTiO3 ceramic concentrated suspension with a low viscosity in alkaline condition was abtained. 4figs. ,11refs.

关 键 词：BATIO3 电空间稳定 聚合物电解质 高分散水基悬浮液 

分 类 号：TQ439.92[化学工程]