Investigation of hydrophobicity and morphology of polymeric ink coatingcontaining APTES on cement and stone surfaces.

Todays, concrete and stone, as one of the most basic elements of building and roadconstruction,an have a special place among other materials. The technology ofconstruction, maintenance and restoration of concrete and stone has made greatprogress, and researchers and practitioners are always looking for ways to improvethe construction and durability of concrete. In this study, the composition of ,nonionicsurfactant,pigment,۳-aminopropyltriethoxysilane (APTES),ethylene glycolpolymer and the combination of water and ethanol as the ink sample solvent forcoating application.hydrophobicity of samples was measured by using the contactangle measurement test, the highest contact angle of ۱۳۵ that was related to the stonesample in which water-based ink containing nanoparticles of titanium dioxide,andAPTES was used, and the lowest contact angle (۱۶ degree) was related to the stonesample coated with water-based ink without APTES. Scanning Electron Microscope(SEM) images were used to examine the morphology of the surface of the samples,and the presence of nanoparticles and changes in the cement surface wereinvestigated with this method.

کلیدواژه ها:

hydrophobic coatings ، water-based ink ، nanoparticles ، polymeric ink.