Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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The Effect of Reaction Condition on Particle Formation in the Synthesis of Silica Powder Using Emulsion

Emulsion법에 의한 실리카 분말의 합성에서 반응조건이 입자의 형성에 미치는 영향

  • Lee S. G. (Division of Materials Science and Engineering, Pusan National University) ;
  • Jang Y. S. (Division of Materials Science and Engineering, Pusan National University) ;
  • Moon B. Y. (ILIC, Pusan National University) ;
  • Kang B. S. (ERC/NSDM, Pusan National University) ;
  • Park H. C. (Division of Materials Science and Engineering, Pusan National University)
  • Published : 2005.11.01
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Abstract

Silica powders were synthesized using emulsion solution containing water, nonionic surfactant of Triton N-57, and cyclohexane. Silica powders were prepared at low cost using inexpensive starting material of sodium silicate and ammonium sulfate. Morphology, size and size distribution were observed and determined using SEM. The powder was identified as silica by FT-IR and XRD analysis. Particle size and size distributions were affected by concentration of reactants, reaction time, and concentration of surfactant. Particle size were increased with increasing concentration of reactants and particles became dense with increasing reaction time. As R value increased, tile particle size was increased, reached a certain value and then decreased again. The silica powders synthesized under optimum condition were spherical in shape, $0.8{\mu}m$ in average particle size, narrow in particles size distribution, and well dispersed.

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References

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