To test the influence of droplet size,droplet evaporation,quartz surface wet degree and quartz capillary inner diameter on contact angle measurement,this paper,based on the measurement of height,employed a contact angle and surface tension testing instrument to investigate the variation patterns of contact angles under the influence of different factors and analyzed the underlying reasons.The results indicate that:with the increase of droplet volume,the average relative error of contact angle measured by alt-measuring method increased gradually.With the continuation of the measurement time,the contact angle generally showed a decreasing trend.With the increase of the wetting degree of hydrophilic solid surface,the average contact angle measured by alt-measuring method decreased gradually.With the increase of the inner diameter of the quartz capillary,the contact angle decreased first and then increased.
quartzdropletcontact anglecapillary tubesensitivitycapillary water
NETL
NSTL
维普
万方数据
