Effect of Diameter of Primary Particles on the Extension of the Rate Theory of Rapid Brownian Coagulation via Excluded Volume

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  • Fukasawa Tomonori
    Graduate School of Life and Environmental Sciences, University of Tsukuba
  • Adachi Yasuhisa
    Graduate School of Life and Environmental Sciences, University of Tsukuba

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  • 急速ブラウン凝集速度の評価に対するフロック排除体積の影響
  • キュウソク ブラウン ギョウシュウ ソクド ノ ヒョウカ ニ タイスル フロック ハイジョ タイセキ ノ エイキョウ

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Flocs formed of polystyrene latex particles undergoing rapid Brownian coagulation were counted directly under an optical microscope to verify the validity of our previously proposed equation to predict the temporal evolution of the concentration of flocs developing fractal structure. Experiments were carried out by changing the diameter of the primary particle in order to emphasize the difference of excluded volume of formed flocs. The obtained results demonstrated the enhancement of the rate of coagulation in the later stage of coagulation, which verifies the validity of our previously proposed equation.

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