Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Synthesis of Monodisperse Silica Particles using Rotating Cylinder Systems

  • Cho, Young-Sang (Department of Chemical Engineering and Biotechnology, Korea Polytechnic University) ;
  • Shin, Cheol Hwan (Department of Chemical Engineering and Biotechnology, Korea Polytechnic University)
  • Received : 2016.07.07
  • Accepted : 2016.08.22
  • Published : 2016.12.01
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Abstract

Monodisperse silica nanospheres were synthesized by Stober method using rotating cylinder systems with batch or continuous manner. The particle size could be controlled by adjusting the reactant compositions such as the amount of monomer, catalyst, and water in the reaction mixture. The size and monodispersity of the ceramic particles could be controlled by changing the reaction medium with different alcohols other than ethanol or changing the reaction temperature. The effect of Taylor number (Ta) on the average diameter and standard deviation of silica particles were also studied by adjusting the rotation speed of inner cylinder, and the maximum diameter of particles was observed at Ta ${\approx}3,000$.

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References

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