Wettability and coatings

The spreading of a liquid onto a substrate relates to such applications as the coating of liquids on paper and the spreading of binders and finishes on fibers. Such wettability studies are affected by the roughness of the solid 

which is not volatile, was used for dynamic studies. The PPE was fed through a hole in the sample stub, from outside the specimen chamber, and the wetting experiment was recorded on video tape [576], Mori et al. [577] used freshly cleaved mica surfaces as steps 60 nm in height to inhibit wetting. Surface roughness has a major effect on the local contact angle between the liquid and the substrate of interest. The surface of coatings is more commonly assessed by various SPM techniques as will be described below. 

The interaction between polymers and surfactants and colloidal systems in general has gained interest in many fields in recent years due to 

An example of the conformation of long polyelectrolyte chains attached to colloidal latex particles is also shown here by cryo-TEM [590]. The dense grafting of the polyelectrolyte chains ( spherical polyelectrolyte brush, or SPB) leads to a confinement of the counterions 

Diffusion of rubber particles into the adhesion promoter  

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