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Controlled coalescence of two immiscible droplets for Janus emulsions in a microfluidic device

机译:用于微流体装置中Janus乳液的两个不混溶液滴的控制聚结

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摘要

We developed a simple microfluidic device to prepare Janus emulsions by the controlled coalescence of two immiscible droplets. We could prepare Janus emulsions with different sizes and structures by changing three phase flow rates and the concentration of additives in different phases, and by controlling the equilibrium contact angle theta(AB) in the range of 120 degrees to 190 degrees. Furthermore, we firstly found that the coalescence process of two immiscible droplets would be quicker when the equilibrium structure of the Janus emulsion tends to be 'complete engulfing'. The results will be helpful for preparing Janus emulsions with controlled structures in a microfluidic device.
机译:我们开发了一种简单的微流体装置,通过两个不混溶的液滴的受控聚结制备Janus乳液。 我们可以通过改变三相流速和不同相的添加剂的浓度来准备不同尺寸和结构的Janus乳液,并通过将120度至190度的均衡角θ(ab)控制平衡接触角θ(ab)。 此外,我们首先发现,当Janus乳液的平衡结构趋于“完全吞噬”时,两个不混溶的液滴的聚结过程将更快。 结果将有助于在微流体装置中使用受控结构的janus乳液制备。

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  • 来源
    《RSC Advances》 |2015年第41期|共7页
  • 作者单位

    Tsinghua Univ Dept Chem Engn State Key Lab Chem Engn Beijing 100084 Peoples R China;

    Tsinghua Univ Dept Chem Engn State Key Lab Chem Engn Beijing 100084 Peoples R China;

    Tsinghua Univ Dept Chem Engn State Key Lab Chem Engn Beijing 100084 Peoples R China;

    Tsinghua Univ Dept Chem Engn State Key Lab Chem Engn Beijing 100084 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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