Compressed liquid marble ruptures at edge
Compressed liquid marble ruptures at edge
复制标题
压缩液态大理石边缘破裂
DOI：
10.1063/1.5108999
复制
发表时间：
2019-06
影响因子：
4
通讯作者：
Shum Ho Cheung
中科院分区：
文献类型：
--
作者：
Liu Zhou;Zhang Yage;Yang Tiyun;Wang Zhi;Shum Ho Cheung
提高对液体大理石破裂动力学的理解对于它们在传感器、小型化反应、生物医学支架、功能材料合成等方面的应用至关重要。这项工作表明，压缩的液体大理石总是在大理石和基底之间的接触区域的边缘处破裂。压缩大理石的破裂动力学可视化与颗粒级分辨率使用大理石涂有单分散微粒。高速摄影表明，颗粒密度从中心到边缘显著降低，并且边缘处的稀疏颗粒层开始破裂。这种颗粒密度分布很好地描绘了我们提出的模型，预测的理论值与实验结果吻合得很好。本研究概括了颗粒稳定液滴破裂动力学的理解，有利于任何涉及液体大理石以及Pickering乳液的破裂或聚结的应用，提高对液体大理石破裂动力学的理解是必不可少的，它们在传感器，微型化反应，生物医学支架，功能材料的合成等方面的应用。这项工作表明，压缩的液体大理石总是在大理石和基底之间的接触区域的边缘处破裂。压缩大理石的破裂动力学可视化与颗粒级分辨率使用大理石涂有单分散微粒。高速摄影表明，颗粒密度从中心到边缘显著降低，并且边缘处的稀疏颗粒层开始破裂。这种颗粒密度分布很好地描绘了我们提出的模型，预测的理论值与实验结果吻合得很好。该研究概括了对颗粒稳定液滴破裂动力学的理解，对涉及液滴破裂或聚结的任何应用都是有益的。
An improved understanding of the rupture dynamics for liquid marbles is essential for their application in sensors, miniaturized reactions, biomedical scaffolds, the synthesis of functional materials, and others. This work suggests that a compressed liquid marble always ruptures at the edge of the contact area between the marble and a substrate. The rupture dynamics of a compressed marble is visualized with a particle-level resolution using a marble coated with monodispersed microparticles. High-speed photography indicates that the particle density decreases significantly from the center to the edge, and the sparse particle layer at the edge initiates rupturing. Such a particle density distribution is well depicted with our proposed model, which predicts the theoretical values that agree well with the experimental results. This study generalizes the understanding for the rupture dynamics of particle-stabilized droplets and is beneficial to any applications that involve the rupture or coalescence of liquid marbles as well as Pickering emulsions.An improved understanding of the rupture dynamics for liquid marbles is essential for their application in sensors, miniaturized reactions, biomedical scaffolds, the synthesis of functional materials, and others. This work suggests that a compressed liquid marble always ruptures at the edge of the contact area between the marble and a substrate. The rupture dynamics of a compressed marble is visualized with a particle-level resolution using a marble coated with monodispersed microparticles. High-speed photography indicates that the particle density decreases significantly from the center to the edge, and the sparse particle layer at the edge initiates rupturing. Such a particle density distribution is well depicted with our proposed model, which predicts the theoretical values that agree well with the experimental results. This study generalizes the understanding for the rupture dynamics of particle-stabilized droplets and is beneficial to any applications that involve the rupture or coalescence of liquid...
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