A novel experimental method for simultaneous measurements of surface tension and surface dilatational viscosity of liquid(T002_1)

摘要

Many experimental methods for the surface tension measurement have been developed including capillary rise method, sessile drop method, etc. However each experimental method has disadvantage even in the case of capillary rise method. For example, in the case of capillary rise method, the error of the contact angle between liquid and solid wall will lead measurement error of the surface tension. In this paper, a new experimental method for surface tension measurement based on the Laplace's equation has been proposed. Surface tension will be measured from the pressure difference between inside and outside of the bubble.