Abstract

It is found that the time of establishing a critical contact angle of wetting the surface of a pressed sample made of polycrystalline quartz powder with different liquids is determined primarily by the viscosity of the liquid. It is shown that, in order to determine the critical contact angle of powder materials, it is necessary to record the moment at which the diameter of the base of a liquid droplet on the surface of a powder sample has a maximum value.

中文翻译：

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用悬滴法测量粉末的接触角

摘要

发现用不同液体润湿由多晶石英粉制成的压制样品表面的临界接触角的建立时间主要由液体的粘度决定。结果表明，为了确定粉末材料的临界接触角，需要记录粉末样品表面液滴底部直径达到最大值的时刻。