Preparation of Polymer Coatings for Protection of Metal Structures from Corrosive Effects

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Abstract

Сopolymers and the methodology for their synthesis are presented. In order to protect metal products and structures from the effects of corrosion processes, various fillers for polymer coating were selected: silicon production waste (microsilica) and titanium dioxide, as well as their combined mixtures. The obtained copolymers exhibit good adhesion required for composite protective coatings. An experiment was conducted to evaluate the corrosion resistance of metals subjected to aggressive environment, as well as to determine the hardness and thickness of the obtained polymer coatings. Thus, the corrosion score of the polymer coating with titanium dioxide filler is 2 in 5% NaCl and 5% KOH aggressive media and is 3-4 in acidic media with 10% KOH. Polymer coating with microsilica filler has a corrosion score of 2 in salt and acid aggressive media, but in alkaline media such coating performed worse and has a corrosion score of 4. The best corrosion resistance values are for the series 2 combination polymer coating consisting of methyl methacrylate, styrene and vinyl butyl ether, with a corrosion score of 2 in salt and acid media and a corrosion score of 4 in alkaline media. Series 1, methyl methacrylate, maleic anhydride, and vinyl butyl ether combined coating has the worst corrosion resistance: corrosion score of 4, 5, 6 in 10% H2SO4 and in an alkaline media (5 and 10% KOH), respectively. At the same time, the developed polymer coatings exhibit satisfactory adhesion properties even after the exposure to aggressive media.

About the authors

Vladimir V. Merkulov

Karaganda Industrial University

Email: smart-61@mail.ru
ORCID iD: 0000-0003-0368-3890

Candidate of Chemical Sciences, Associate Professor of the Department of Chemical Technology and Ecology

Temirtau, Kazakhstan

Gulnara A. Ulyeva

Karaganda Industrial University; Qarmet JSC

Email: g.ulyeva@mail.ru
ORCID iD: 0000-0002-3600-1318

Candidate of Technical Sciences, Associate Professor, Leading Specialist of the Laboratory of Metallurgy and Flaw Detection of the Center for Analytical Control of Qarmet JSC

Temirtau, Kazakhstan

Anastasia A. Yepaneshnikova

Karaganda Industrial University

Email: aae9909@mail.ru
ORCID iD: 0009-0004-8295-1367

graduate student of the Department of Metallurgy and Materials Science

Temirtau, Kazakhstan

Irina E. Volokitina

Karaganda Industrial University

Author for correspondence.
Email: irinka.vav@mail.ru
ORCID iD: 0000-0002-2190-5672
SPIN-code: 8965-4704

PhD, Professor of the Department of Metallurgy and Materials Science

Temirtau, Kazakhstan

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