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J. Korean Ceram. Soc. > Volume 28(8); 1991 > Article
Journal of the Korean Ceramic Society 1991;28(8): 611.
Zr(n-OC$_4$H$_9$)$_4$의 가수분해에 의한 선분산 지르코니아 분체의 합성에서 분산제 HPC의 첨가효과
이전, 주동수
인하대학교 무기재료공학과
Effect of HPC Dispersant on Synthesis of Monodispersed Hydrated Zirconia Powder by Hydrolysis of Zr-n-butoxide
In the present study adding hydroxypropyl celluose as dispersant to the ethanol solution of Zr-butoxide prior to starting the hydrolysis reaction, spherical and submicrometer sized hydrated zirconia powders were synthesized successfully. But syntesized hydrated zirconia powders were soluble considerably in ethanol used as washing medium. Washing once the powder with plenty amount of water after washing thrice it with acetone, reaction mother solution remained between the particles was effectively removed and the particles were converted to insoluble state to ethanol at the same time. As a result of such washing processes it was able to prevent the formation of polydispersed, agglomerated and multiplet particles almost always even when such concentrated solutions of Zr-n-butoxide as 0.5 M were hydrolyzed.
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