《《3种分散剂对ITO浆料稳定性能的影响》.pdf

17 1 2007 1 Vol.17 No.1 The Chinese Journal of Nonferrous Metals Jan. 2007 1004-0609(2007)01-0161-05 3ITO 1 1 2 (1. 410083; 2. 410015) 3(β-)ITO ITO 3ITO5% 48 h 15 dITORSH10%3ITO β- ITO TQ 63 A Effects of three dispersants on stability of ITO suspension 1 1 2 ZHU Xie-bin , DUAN Xue-chen , CHEN Hai-qing (1. School of Materials Science and Engineering, Central South University, Changsha 410083, China; 2. Nonferrous Metals Research Institute of Hunan, Changsha 410015, China) Abstract: The effects of three dispersants (PVP, Triammonium citrate, β-Alanine) on the stability of ITO suspension prepared by ball milling dispersion were studied. The influences of dispersing time and dispersant content on stability of ITO suspension were investigatedAnd the roles of the different dispersant and their dispersing mechanism on stability of ITO suspension were also investigated. The results show that the stability and dispersion mechanisms of the three dispersants are electrostatic and steric hindrance, and make ITO suspension keep RSH 10% within 15 days under the conditions that the dispersant/ITO powder is 5%(mass ratio) and optimal ball milling dispersion time is 48 h. The sequence of effects of these three dispersants on the stability of ITO suspension is PVP β-alanine triammonium citrate, which is in agreement with the sequence of their acidity and alkalinity in the suspension. Among these three dispersants,