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The aim of this work was to improve the physical, chemical and mechanical properties of epoxy composites with the use of nanosized aluminium oxide. The studies proved the possibility of directional control of the operational properties of epoxy composites by the use of small additions of nanosized aluminium oxide ensuring the creation of epoxy composites with high performance, satisfying the requirements of most industries. The rational content of aluminium oxide as a nanostructuring additive in an epoxy composition was selected (0,05 parts by weight). It ensures an increase in the complex of physico-mechanical properties (the breaking stress increases 3.3-fold, and the flexural modulus increases by 27%, the breaking stress in compression improves by 43%, the breaking stress and the tensile modulus of elasticity increases by 47-50%, the toughness increases 3-fold, and the hardness increases by 67%), while maintaining heat resistance. The introduction of nanosized aluminium oxide changes the parameters of the epoxy oligomer curing kinetics: the gelation duration increases from 45 to 75 minutes, and the duration of cure, from 53 to 100 minutes, while the maximum curing temperature is practically unchanged. Thus, the developed materials may be used for sealing electronic articles, for impregnating and filling components in aircraft engineering, shipbuilding and, automotive industry.

About the Authors

A. S. Mostovoi
Engels Technological Institute (branch) of the Yuri Gagarin State Technical University of Saratov
Russian Federation

Ph.D. (Engineering), Head of the Laboratory "Modern Methods of Research of Functional Materials and Systems", Associate Professor of the Chair of Natural and Mathematical Sciences

17, Svobody Sq., Engels, Saratov region, 413100, Russia

A. A. Taganova
Engels Technological Institute (branch) of the Yuri Gagarin State Technical University of Saratov
Russian Federation


17, Svobody Sq., Engels, Saratov region, 413100, Russia

K. V. Prokopovich
Engels Technological Institute (branch) of the Yuri Gagarin State Technical University of Saratov
Russian Federation


17, Svobody Sq., Engels, Saratov region, 413100, Russia

E. V. Yakovleva
N.I. Vavilov Saratov State Agrarian University
Russian Federation

Ph.D. (Chemistry), Associate Professor of the Chair of Botany, Chemistry and Ecology

1, Teatralnaya Sq., Saratov, 410012, Russia


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For citation:

Mostovoi A.S., Taganova A.A., Prokopovich K.V., Yakovleva E.V. MODIFICATION OF EPOXY POLYMERS WITH THE USE OF NANOSIZED OF ALUMINIUM OXIDE. Fine Chemical Technologies. 2017;12(5):21-27. (In Russ.)

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