Abstract:
Introduction of surfactants in paintwork materials composition is one of the effective ways to improve their
quality. It is obvious that introduction of surface-active additives in coating compositions changes not only
the dispersity of the pigments and fillers included into the composition, but also the nature of the adsorption
and intermolecular interactions in the system. With the help of low-frequency dielectrometry, a physical grid
of intermolecular bonds was detected in the process of its formation. The regularities of the structurization of
amines and polyphenylsiloxane in solutions of toluene were established by viscosimetric method. According
to the results of viscosimetric analysis, the regularities of surface tension change for polyphenylsiloxane solutions
were revealed: as the concentration increases from 0 to 2 g/dm3, the surface tension decreases from 28
to 26 mJ/m2. Rheological data showed that deviations from the ideal system exist in the region of the studied
concentrations, i.e., there is an association of molecules of the amino derivatives with macromolecules of
polyphenylsiloxane (heteroassociation). It is proved that formation of macromolecular structures is inherent
in all three varieties of amines and is substantially enhanced in concentrated solutions.
