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望好心人士能帮帮忙，帮在下找两篇文献！非常紧急，谢谢！ e-mail：xingyue333@sina.com 1、Charles W. Extrand ，《Spontaneous Spreading of Viscous Liquid Drops 》，Journal of Colloid and Interface Science 。 2、Bayer, Ilker S.， Megaridis， Constantine M，《Contact angle dynamics in droplets impacting on flat surfaces with different wetting characteristics》， Journal of Fluid Mechanics。 |
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ztt06
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2楼2007-03-13 11:48:12
yuanfen810510
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仅有摘 Abstract The spontaneous spreading of viscous liquid drops on solid surfaces, just after deposition, has been studied. Silicone oils (polydimethylsiloxane, PDMS) of two different viscosities were placed on fluorinated silicon wafers, tetrafluoroethylene (Teflon), and glass. The contact angle, height, and contact radius have been measured with the passage of time. The spreading rate depended on the size of the drop, the physical properties (surface tension and viscosity) of the liquid, and the available capillary pressure. Less-viscous or smaller drops spread faster. Later on, as drops approached equilibrium, surface interactions appeared to contribute to the movement of the contact line. A simple model assuming downward flow during the early stages of spreading has been used to interpret the experimental data |
3楼2007-03-13 11:48:48