new applications
Assessing
the cleaning ability of aqueous surfactant solutions on soiled hydrophobic
textile fabrics by using contact angle and surface tension measurements
This
article presents a practical way of making an estimation based on surface
tension measurements between dirt components and the cleaning solution
as well as on contact angle measurements made on hydrophobic textiles;
this makes it possible to predict the cleaning effect.
more
...
Adhesion
Energy and Interfacial Tension – Two Related Coating/Substrate Interfacial
Properties. Which is More Important for Your Application, and Why ?
The major reason for determining surface energies and surface polarities
for coatings (including adhesives and inks) and substrates is as a basis
for modification of either one or the other (or possibly both) to improve
either wetting, spreading, or adhesion. Two important interfacial parameters
are typically gained from such work: the physiochemical adhesion energy
between the coating and the substrate, and the interfacial tension
that remains, once the substrate/coating interface is formed. The former
property (adhesion energy) has much to do with how favorable the formation
of such a substrate/coating "bond" is. The later property
(interfacial tension) has to do with how difficult such a bond will
be to break, once it is formed.