Zdrojový dokument:Scientific papers of the University of Pardubice. Series A, Faculty of Chemical Technology. 25/2019
ISSN:1211-5541
Abstrakt:
This paper describes the properties of environmentally harmless anticorrosion paints
based on newly synthesized water-based polymeric acrylate dispersions and containing
magnesium oxide nanoparticles at a concentration of 1.5 % relative to the monomers.
An aqueous dispersion obtained by the same procedure, i.e. semi-continuous emulsion
polymerisation, but containing no MgO nanoparticles, had served as a reference system
when evaluating the effect of the nanoparticles. The paints have been studied with
respect to the effects of the new binder and of various environmentally harmless
pigments possessing different chemical compositions and particle shapes on the
anticorrosion efficiency of the paint film. The paint film’s mechanical and chemical
resistance was also evaluated because a high mechanical and chemical resistance of
the coating is a prerequisite for high anticorrosion efficiency of the paint system. The
results of measurements of the mechanical, chemical as well as corrosion resistance of
the latex films have demonstrated better protective properties of the new polymeric
dispersions with magnesium nanoparticles compared to the reference system that did
not contain any nanoparticles.