On the maximum spreading diameter of impacting droplets on well-prepared solid surfaces.
On the maximum spreading diameter of impacting droplets on well-prepared solid surfaces.
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DOI：
10.1021/la0481288
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发表时间：
2005-01
期刊：
影响因子：
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通讯作者：
Chijioke Ukiwe;D. Kwok
中科院分区：
文献类型：
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作者：
Chijioke Ukiwe;D. Kwok
本文系统地研究了液滴在聚甲基丙烯酸甲酯、聚甲基丙烯酸甲酯/甲基丙烯酸正丁酯和聚甲基丙烯酸正丁酯三种聚合物表面上的撞击行为。从一个表面到下一个表面的变化表示固体表面张力的增量变化为5-6 mJ/m2。这些表面是通过用于从接触角测定固体表面张力的仔细实验程序制备的。我们的数据的最大传播直径的水和甲酰胺影响这些表面进行了比较，从文献模型预测。在选择的模型中，我们修改了Pasandideh-Fard等人的模型[Phys. Fluids 1996，8，650]，结果在确定最大铺展直径时产生的误差最小，仅为5.09 +/- 5.05%。改进后的模型也与文献数据进行了比较，发现很好的协议。当然，任何这样的比较将依赖于精确的实验冲击动力学数据上仔细准备的表面。
This paper presents a systematic study of liquid droplet impact on three polymer surfaces: poly(methyl methacrylate), poly(methyl methacrylate/n-butyl methacrylate), and poly(n-butyl methacrylate). Changing from one surface to the next represents an incremental variation in solid surface tensions of 5-6 mJ/m2. These surfaces were prepared through careful experimental procedures that were used for the determination of solid surface tensions from contact angles. Our data for the maximum spreading diameter of water and formamide impacting on these surfaces were compared with those predicted from literature models. Of the models selected, we modified the model of Pasandideh-Fard et al. [Phys. Fluids 1996, 8, 650] and the results yielded a least error of only 5.09 +/- 5.05% in the determination of the maximum spreading diameter. The improved model was also compared with literature data, and good agreement was found. Of course, any such comparisons would rely on accurate experimental impact dynamics data on carefully prepared surfaces.