ANALYSIS OF THE MOISTURE CONTENT EFFECT ON THE SPECIFIC INDEX AND DAMAGE ACCUMULATION KINETICS IN THE STRUCTURE OF POLYMERIC MATERIALS DURING NATURAL CLIMATIC AGING

We present the results analyzing climatic resistance of epoxy polymers obtained on basis a modified Etal-247 resin cured by Etal-45M under effect natural factors in temperate continental climate. The kinetics damage accumulation structure polymer samples tensile loads was studied using author's method. essence technique to determine coordinates “critical” points deformation curves based time series fractal analysis methods, recorded with high readings frequency (0.01 s). To estimate level accumulated failures leading de-struction loads, we used parameter defined as ratio number fractality index less than 0.5 total (until reaching stresses). Time intervals 0.16 seconds were analyzed area shifted step 0.01 sec. A specific is proposed that characterizes damages sample per unit its strength. Its achievement leads destruction composite study. have determined moisture state and aging duration loads.