S. Smirnov, I. Veretennikova, D. Konovalov, N. Michurov, V. Osipova, A. Pestov
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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-20 epoxy 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 are used as the characteristic parameters. The results testify that the mechanical properties of the epoxy coatings made with different hardeners differ significantly from each other and demonstrate different behaviors.
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