Apparatus for Measurement of Surface Viscosity of Liquid

Abstract

An apparus for measurement of surface viscosity of liquid is made for development of that for high temperature melts, which is resemble to a rotating viscometer for the measurement of bulk phase. The viscometer can be used for the measurement on the surface as well as the bulk phase. Tests of the measurement were carrid out for silicon oils having different values on viscosity, and also for aqueous solutions containing a small amount of saponin on that produces a rigid surface layer on the solution.