用于电泳沉积的TiO_2悬浮液分散性能研究  

Dispersibility of TiO_2 aqueous suspension for electrophoretic deposition

作　　者：许雯艳[1] 卢军[1] 范益群[1] 

机构地区：[1]南京工业大学化学化工学院材料化学工程国家重点实验室,南京210009

出　　处：《膜科学与技术》2012年第3期44-47,共4页Membrane Science and Technology

基　　金：国家重点基础研究发展计划(2009CB623400);国家自然科学基金资助重点项目(20636020)

摘　　要：为了制备适合电泳沉积用的稳定悬浮液,在TiO2水基悬浮液中添加了聚乙烯亚胺(PEI)作为分散剂,对TiO2水基悬浮液进行Zeta电位、黏度、粒径以及稳定性测试,研究了PEI分散剂对TiO2分散性能的影响.结果表明通过添加相对于悬浮液中TiO2粉体质量分数0.6%～3.0%的分散剂可以获得高稳定、高分散、低黏度的悬浮液.In order to prepare stable TiO2 aqueous suspension for electrophoretic deposition, PEI as a dispersant was added into the water-based suspension of TiO2. Zeta potential, viscosity, particle size and stability were tested to study the effect of the dispersant on dispersing of TiO2 water suspension. The results show that adding 0. 6 %--3 %dwb amount of dispersing agent into the suspension can obtain high stability, high dispersion, and low viscosity suspension which is suitable for cathodic deposition.

关 键 词：电泳沉积 TiO2悬浮液 稳定性 聚乙烯亚胺(PEI) 

分 类 号：O614.411[理学—无机化学]