Contact angle and sessile drop diameter hysteresis on metal surfaces
Contact angle and sessile drop diameter hysteresis on metal surfaces
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DOI：
10.1016/j.ijheatmasstransfer.2008.01.027
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发表时间：
2008-09
影响因子：
5.2
通讯作者：
A. Gajewski
中科院分区：
文献类型：
--
作者：
A. Gajewski
本文介绍了一种测量静态接触角和液滴直径的实验台。并给出了不同粗糙度的铝、黄铜、紫铜和不锈钢上液滴的接触角和直径的测量结果。对增加和减少的液滴体积进行测量。结果表明，接触角和润湿表面的大小存在滞后现象。人们注意到，铝和不锈钢失去其疏水性能在下降过程中，而铜和黄铜保持亲水或疏水材料。
The experimental stand to measure the static contact angle and drop diameter is presented in the paper. The results of contact angle and diameter of the drops on aluminium, brass, copper and stainless steel with different roughness are added. The measurements were done for the increasing and decreasing drop volume. As a result the hysteresis of contact angle and magnitude of wetting surface was observed. It was noticed that aluminium and stainless steel lose their hydrophobic properties during the dropping procedure while copper and brass remain the hydrophilic or hydrophobic material.