Breakup of Oil-in-Water Emulsion Droplets in Microchannel Array Devices at Low Applied Pressures

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概要

• 論文の詳細を見る

• The breakup phenomena of large oil-in-water (O/W) emulsion droplets in silicon microchannel (MC) array devices at low applied pressures were investigated by microscopic and high-speed observations. This study used two sizes of MC arrays, each of which consisted of uniformly sized MCs, slit-like terraces, and deeply etched wells. Monodisperse feed O/W emulsion droplets that had entered the MC arrays were broken up into fine droplets primarily by snap-off that occurs due to localized shear inside the MCs and by pinch-off due to interfacial tension effects inside the MCs or on the inlet side of a terrace. The average droplet size of the permeate O/W emulsions depended significantly on the MC size and exceeded the MC size by 1.2 to 1.4 times. Their coefficients of variation were 18% to 21%. The results obtained from preceding work were compared with the results for direct generation of O/W emulsion droplets using the same MC array device.

• 社団法人 化学工学会の論文
• 2008-05-01

著者

• UEMURA Kunihiko

  Food Technology Division, National Food Research Institute, NARC

• KOBAYASHI Isao

  Food Technology Division, National Food Research Institute, NARC

• Kobayashi Isao

  National Food Research Institute

• NAKAJIMA Mitsutoshi

  Food Engineering Division, National Food Research Institute, NARO

• Uemura Kunihiko

  National Food Res. Inst. Ibaraki Jpn

• Uemura Kunihiko

  Food Technology Division National Food Research Institute Narc

• Nakajima Mitsutoshi

  Food Engineering Division National Food Research Institute Naro

• Nakajima Mitsutoshi

  Food Engineering Division National Food Research Institute

• Uemura Kunihiko

  Natiolan Food Research Institute

• Nakajima M

  Food Engineering Division National Food Research Institute Naro

• Kobayashi Isao

  Food Engineering Division National Food Research Institute Naro

• Kobayashi Isao

  Food Engineering Division National Food Research Institute

• Kobayashi Isao

  National Food Research Institute Naro

• Uemura Kunihiko

  Food Engineering Division National Food Research Institute Naro

• Kobayashi Isao

  National Food Res. Inst. Ibaraki Jpn

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