Determining the surface energy of powders via washburn method
Resource type:
Application note
Format:
pdf
Date of creation:
6 January 2024
Library code:
13635
Understanding the wetting properties of powders is crucial to predict the behaviour when it comes into contact with a liquid phase. For a huge range of technical applications in the field of ceramics, clays, pharmaceutical or cosmetic preparations, the wettability of the involved powders is essential. The Washburn method is used in this context to determine dynamic contact angles on the powders from which the surface energy (SE), with its polar and dispersive parts can be calculated.
In this application note, the wettability of silica powder with various wetting liquids is assessed using a tensiometer of the DCAT series by DataPhysics Instruments and its corresponding software.
