2014 (3) 11

Resistance of epoxy-silica composites to influence of aggressive environment and anticorrosive properties of coatings on their basis

R.I. Lyga, D.V. Gurtovoj, V.M. Mikhal’chuk, E.Y. Bondarenko, V.V. Morenko

Donetsk National University

24, University str., Donetsk, 83001, Ukraine

Polym. J., 2014, 36, no. 3: 295-301.

Section: Synthesis polymers.

Language: Russian.

Abstract:

The amine-cured epoxy-silica polymers based on resin EPONEX 1510 and tetraethoxysilane were synthesized by sol-gel method. It was established that addition of the silica particles to epoxy matrix doesn’t reduce the polymer system resistance to influence of inorganic acids and water. The composites with filler content to 1.5 wt. % possess sufficiently high chemical resistance in alkaline media. by Anticorrosive properties of epoxy-silica coatings on the surface of aluminum alloy D16 were studied by potentiodynamic method: corrosion protection efficiency of the substrate by postcuring composite coatings was more than 90%.

Key words: epoxy-silica composites, amine-cured, aggressive environment, coating, anticorrosive properties.