Complex Fluids: The Physics of Emulsions
Complex Fluids: The Physics of Emulsions
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DOI：
10.1093/oso/9780198789352.003.0010
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发表时间：
2012-09
期刊：
影响因子：
--
通讯作者：
M. Cates
中科院分区：
文献类型：
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作者：
M. Cates
这些讲座从对称二元流体混合物的平均场理论开始，讨论界面张力、应力张量和运动方程（模型 H）。然后我们考虑这种混合物的相分离动力学：聚结、奥斯特瓦尔德熟化、捕获物质对其的预防、双连续态的粗化以及剪切流的作用。第三个主题是通过使用表面活性剂来降低甚至消除相间的界面张力来稳定乳液；然后简要介绍了与后一种情况相关的弯曲能物理学。最后一个主题是通过在流体-流体界面吸附胶体颗粒或纳米颗粒来创建长寿命的亚稳态乳液；与球形液滴一起，这些方法可用于创建一系列具有潜在有趣特性的非常规结构，这些特性现在才刚刚被探索。
These lectures start with the mean field theory for a symmetric binary fluid mixture, addressing interfacial tension, the stress tensor, and the equations of motion (Model H). We then consider the phase separation kinetics of such a mixture: coalescence, Ostwald ripening, its prevention by trapped species, coarsening of bicontinuous states, and the role of shear flow. The third topic addressed is the stabilization of emulsions by using surfactants to reduce or even eliminate the interfacial tension between phases; the physics of bending energy, which becomes relevant in the latter case, is then presented briefly. The final topic is the creation of long-lived metastable emulsions by adsorption of colloidal particles or nano-particles at the fluid-fluid interface; alongside spherical droplets, these methods can be used to create a range of unconventional structures with potentially interesting properties that are only now being explored.