Dispersion of barium titanate in aqueous media

被引：16
|
作者：
Zhao, Jianling [1 ]
Wang, Xiaohui [1 ]
Chen, Renzheng [1 ]
Li, Longtu [1 ]
机构：
[1] Tsinghua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2007年 / 33卷 / 02期
关键词：
barium titanate; dispersant; rheological behavior; orthogonal experiment;
D O I：
10.1016/j.ceramint.2005.09.006
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Four kinds of dispersants including poly(acrylic acid-co-maleic acid), poly-DL-aspartic acid, polyacrylic acid and ammonium citrate were chosen from more than seventy kinds of dispersants by screening experiments concerning their dispersing abilities for barium titanate (BT) suspension in aqueous media. Sediment experiments, rheology characterization and particle distribution measurements were conducted through orthogonal experiments. The optimum concentrations of dispersants, pH value and ball-milling time have been obtained. Judging from the results of both rheological behavior and particle distribution curves, we can conclude that the best effective dispersant for BT particles in aqueous media is poly(acrylic acid-co-maleic acid), while the least effective one is ammonium citrated among these four kinds of dispersants. (c) 2005 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
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页码：207 / 212
页数：6
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