Synthesis of acrylic-modified water-reducible alkyd resin

Alkyd resin was synthesised and modified with acrylic monomers by changing organosilane monomer content in the range of 4–16 wt% in all acrylic monomer compositions. Then, the carboxyl groups on the hybrid resins were neutralized with a base and the coating recipes were formulated using these water-reducible resins. According to test results, it can be said that water-reducible acrylic-modified alkyd coatings offer a good balance of hardness and flexibility.

Corrosion resistance and adhesion strength

Then, the line was scratched parallel to the coating system and the surface coating properties of the coated panels, such as the adhesion strength after being exposed to humidity and corrosion resistance, were comparatively investigated. The best results for corrosion resistance and adhesion strength were obtained with the coating which was formulated with the resin having organosilane monomer of 8 wt% in all acrylic monomer mixtures. As the organosilane monomer amount increased to 16 wt%, the coatings’ corrosion resistance and adhesion strength decreased.

The study has been published in Journal of Coatings Technology and Research, Volume 20, Issue 6, November 2023.

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