润湿指数
A hydrophobic index and the relative contact angle in the hydrophobic and wetting experiments were employed to evaluating modification results. The relative contact angle of the aqueous solution on the silica gel powder has been obtained by modified Washburn method.
用改进的Washburn方法测定16-2-16水溶液在硅胶粉末表面的接触角,并进一步讨论了16-2-16在硅胶表面的吸附引起的润湿性变化。
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