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arXiv 2002.00644cond-mat.soft
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表面活性剂水溶液中油滴的自发变形和fission

Spontaneous deformation and fission of oil droplets on an aqueous surfactant solution

Masahide Okada, Yutaka Sumino, Hiroaki Ito, Hiroyuki Kitahata

摘要:

研究了含棕榈酸十四烷液滴在硬脂基三甲基氯化铵(STAC)水溶液中的自发形变和分裂。在该体系中,由PA和STAC组成的凝胶层的产生和破裂导致液滴变形和分裂,为了研究液滴分裂动力学的特征,我们得到了液滴数量的时间序列,并证实了液滴数量在一定的STAC浓度下有一个峰值。由于变形是导致液滴裂变的主要原因,本文从液滴-边界速度的时空相关性出发,分析了可能与裂变动力学有关的四个参数。结果表明,更快的形变将是裂变动力学的关键因素。

英文摘要:

We investigated the spontaneous deformation and fission of a tetradecane droplet containing palmitic acid (PA) on a stearyltrimethylammonium chloride (STAC) aqueous solution. In this system, the generation and rupture of the gel layer composed of PA and STAC induce the droplet deformation and fission.To investigate the characteristics of the droplet-fission dynamics, we obtained the time series of the number of the droplets, and confirmed that the number has a peak at a certain STAC concentration. Since the fission of the droplet should be led by the deformation, we analyzed four parameters which may relate to the fission dynamics from the spatio-temporal correlation of the droplet-boundary velocity. As a result, we found that the faster deformation would be the key factor for the fission dynamics.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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