Application of polymerizable and alkoxide gels for formation of conversion coatings on metals
https://doi.org/10.61852/2949-3412-2024-2-3-159-173
Abstract
The application of polymerizable and alkoxide gels for the formation of porous coatings on metals has been investigated. The basic principles of construction of polymerizable gels and their advantages over partial gels, which are obtained from highly dispersed metal oxides, are noted. The morphology and chemical composition of the surface of steel and magnesium alloys modified with the help of gels have been studied by means of X-ray photoelectron spectroscopy. It was found that when styrene-acrylic dispersion interacts with magnesium alloy, a porous structure consisting of organomagnesium and polymer structures is formed on its surface. A uniform polymer coating with good adhesion to the substrate is formed on the surface of low carbon steel. The mechanism of formation of porous titanium dioxide structures on the steel surface obtained by sol-gel technology is considered. It is shown that the inclusion of organosilanes in the composition of porous titanium dioxide gel significantly increases the mechanical strength of the coating and its adhesion to the steel surface.
About the Authors
Yu. B. Makarychev
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
Leninsky pr. 31, 119071 Moscow
O. YU. Grafov
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
Leninsky pr. 31, 119071 Moscow
D. B. Vershok
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
Leninsky pr. 31, 119071 Moscow
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Review
For citations:
Makarychev Yu.B., Grafov O.Yu., Vershok D.B. Application of polymerizable and alkoxide gels for formation of conversion coatings on metals. Title in english. 2024;(3):159-173. (In Russ.) https://doi.org/10.61852/2949-3412-2024-2-3-159-173
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