DL15

26.06, 15:30-16:00

Platikanov D.
Wetting behaviour and thin wetting films from aqueous solutions of polymeric surfactants.

Bulgaria / Болгария

The wetting properties and the thin wetting films of aqueous solutions of a novel non-ionic polymeric surfactant INUTEC SP1 have been studied On hydrophilic glass surface the θ versus INUTEC SP1 concentration C_SP1 curves showed a maximum. On a hydrophobic glass surface a gradual θ decrease with increase in C_SP1 was observed. At low C_el the thickness of wetting films decreased with increase of C_SP1, reaching a minimum. The steric repulsion of the loops and tails of INUTEC C_SP1 determined the film thickness.