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J. Korean Ceram. Soc. > Volume 40(3); 2003 > Article
Journal of the Korean Ceramic Society 2003;40(3): 293.
doi: https://doi.org/10.4191/kcers.2003.40.3.293
현탁액과 전해질의 농도가 제타전위에 미치는 영향
정상진, 이승인, 임형미1
요업기술원 세라믹·건재부
1요업 기술원 신기능재료연구부
Effect of the Concentration of Suspension and Electrolyte on Zeta Potential
It was investigated that effect of suspension and electrolyte concentrations on zeta potential of alumini suspension and Iso-Electric Point(I.E.P.). The alumina powders in 0.1∼l $mutextrm{m}$ particle size distribution, and the electrolyte NH$_4$NO$_3$ were used for preparing the suspension and electrophoresis method was used for measuring zeta potential in this work. As the concentration of suspension was increased, zeta potential and the I.E.P. were increased, respectively. On the other hand, as the electrolyte concentration was increased, the I.E.P. was decreased. As a result of this work, the best condition for measuring zeta potential was the 0.01 wt% and 10 mM of the suspension and the electrolyte concentration, respectively.
Key words: Zeta potential, Iso-electric point, Electrophoresis, Suspension, Electrolyte
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