The Impact of Hardener on Elastic-strength Parameters of Epoxy Polymers Exposed to Natural Conditions

The article provides the results of testing polymer composites based on epoxy binders and exposed to natural climatic factors of the temperate climate. The analysis of summary solar radiation and ultraviolet radiation ranges A and B is completed. The effect of exposure duration and intensity of actinometrical parameters on the elastic-strength properties of polymer composites is studied. The coefficients of the exponential equation describing the change of relative strength and extension of epoxy composites under tension are calculated.