Monolayer spreading of polydimethylsiloxane oil on surfactant solutions
Monolayer spreading of polydimethylsiloxane oil on surfactant solutions
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DOI：
10.1103/physrevlett.76.3152
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发表时间：
1996-04-22
影响因子：
8.6
通讯作者：
Langevin, D
中科院分区：
文献类型：
--
作者：
Bergeron, V;Langevin, D
通过视频显微镜观察聚四氟乙烯示踪粒子，测量了聚二甲基硅氧烷油单分子膜在不同表面活性剂溶液上的径向铺展速率。我们发现，一个仅基于Marangoni驱动的表面张力梯度的简单模型，可以准确地预测这些膨胀的单分子膜的幂律行为。此外，我们记录了所谓的假局部润湿的观测结果，并讨论了它与更经典的润湿理论的联系。
The radial spreading rate of polydimethylsiloxane oil monolayers on various surfactant solutions is measured by observing Teflon tracer particles with a video microscope. We find that a simple model, based solely on Marangoni driven surface tension gradients, accurately predicts the power-law behavior observed for these expanding monolayers. In addition, we document observations of so-called pseudopartial wetting, and discuss its connection to more classical wetting theories.