한국분말재료학회지 (Journal of Powder Materials)

  • 제13권4호
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  • Pages.263-268
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  • 2006
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  • 2799-8525(pISSN)
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  • 2799-8681(eISSN)
한국분말재료학회 (*구 분말야금학회) (The Korean Powder Metallurgy & Materials Institute)
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TiO2 나노 분말의 분산 안정성 및 침강 특성

Stability and Sedimentation Properties of TiO2 Nanoparticles

  • 우승희 (한국원자력연구소, 원자력나노소재응용랩) ;
  • 이민구 (한국원자력연구소, 원자력나노소재응용랩) ;
  • 이창규 (한국원자력연구소, 원자력나노소재응용랩)
  • Woo S.H. (Nuclear Nanomaterials Development Lab., Korea Atomic Energy Research Institute) ;
  • Lee M.K. (Nuclear Nanomaterials Development Lab., Korea Atomic Energy Research Institute) ;
  • Rhee C.K. (Nuclear Nanomaterials Development Lab., Korea Atomic Energy Research Institute)
  • 발행 : 2006.08.01
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초록

In this study, the colloidal stability and sedimentation behavior of crystalline $TiO_2$ particles (300nm) in various organic solvents have been investigated by means of a backscattered light flux profile (Turbiscan). The backscattered light flux profiles revealed that the $TiO_2$ nanoparticles were readily sedimented in water, methyl alcohol, and ethyl alcohol due to a flocculation-induced particle growth, while a particle coalescence and a sedimentation of the $TiO_2$ nanoparticles were hardly observed in isopropyl alcohol. The migration velocities of the $TiO_2$ particle were measured as around 6.15/min, 12.53 m/min, 6.51m/min, and 0.18m/min for water, methyl alcohol, ethyl alcohol, and isopropyl alcohol, respectively, showing a remarkably slow migration of the $TiO_2$ particles in isopropyl alcohol.

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참고문헌

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피인용 문헌

  1. Effects of Viscosity on Dispersion Stability of Nano CoAl2O4 Ceramic Ink vol.52, pp.6, 2015, https://doi.org/10.4191/kcers.2015.52.6.497