Cervantes Martinez A, Rio E, Delon G, Saint-Jalmes A, Langevin D, Binks B P
Laboratoire de Physique des Solides, UMR CNRS 8502, Université Paris Sud, 91405, Orsay, France.
Institut de Physique de Rennes, UMR 6251, Université Rennes 1, Rennes, 35042, France.
Soft Matter. 2008 Jun 20;4(7):1531-1535. doi: 10.1039/b804177f.
We have performed a quantitative study of the coarsening of foams stabilised by partially hydrophobic silica nanoparticles. We have used a variety of techniques: optical and electron microscopy, microfluidics, and multiple light scattering. Using earlier studies of planar particle monolayers, we have been able to correlate the interfacial properties and the macroscopic temporal evolution of the foam. This has shed light on the origin of the absence of coarsening of particle-stabilised foams. Such particle-stabilised foams appear to be the only known foam system where coarsening is inhibited by surface elasticity.
我们对由部分疏水的二氧化硅纳米颗粒稳定的泡沫粗化进行了定量研究。我们使用了多种技术：光学和电子显微镜、微流体技术以及多重光散射技术。通过对平面颗粒单层的早期研究，我们能够将界面性质与泡沫的宏观时间演变联系起来。这揭示了颗粒稳定泡沫不存在粗化现象的原因。这种颗粒稳定泡沫似乎是唯一已知的因表面弹性而抑制粗化的泡沫体系。
