S. V. Smirnov, I. A. Veretennikova, D. A. Konovalov, N. S. Michurov, V. A. Osipova, A.V. Pestov

EFFECT OF HARDENERS ON THE MECHANICAL PROPERTIES OF EPOXY COATINGS BASED ON ED-20 RESIN

The aim of this study is to investigate the mechanical properties of coatings based on ED-20epoxy resin, manufactured with polyethylenepolyamine or polyamidepolyamine used as hardeners. Instrumented indentation with a Berkovich triangular pyramid is used to determine the mechanical properties. Indentation hardness, reduced elastic modulus, and creep at a given holding time. The results testify that the mechanical properties of the epoxy coatings made with different hardeners differ significantly from each other and demonstrate different behaviors.

Acknowledgment: The work was performed according to the state assignment for the IES UB RAS (theme no. AAAA-A18-118020790145-0) with the use of the equipment of the Plastometriya shared research facilities and according to the state assignment for the IOS UB RAS (theme no. AAAA-A19-119012290116-9) with the use of the equipment of the Spectroscopy and Analysis of Organic Com-pounds shared research facilities.

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