科研之友
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摘要
Effects of heavy concentration electrolytic ions on Nano-ZrO2 Aqueous Suspension were investigated by measuring zeta potential of suspension and absorbency of upper liquid. It was found that zeta potential almost equaled to zero because of the thickness of double electric layer compressed by ions, so Nano-ZrO2 could not suspend just through adjusting pH value. And high concentration electrolytic ions easily separated dispersants with simple structure and small molecular weight from the surfaces of nano-particles, which indicated that this kind of dispersants could not play the steric role; but the dispersants with complicated structure and big molecular weight could do well the same thing, and the optimum content of MZN was made certain by measuring the sedimentation of ZrO2.
- 出版日期2003-12
- 单位天津大学
