CALCULATION OF THE STRESS RELAXATION PARAMETERS FOR PRIMARY AND SECONDARY POLYMERS WITHIN THE INTERVAL OF LINEAR AND NON LINEAR REGIONS OF MECHANICAL BEHAVIOR
In work analytical expressions of kernels the relaxations necessary for definition of a relaxation of pressure and deformations of creep of polymers [1] are received. Thus entopy growth relaxation systems is presented by transition relaxation - kinetic units of polymer of the various nature - in nonrelaxation owing to their interaction or diffusion. And the interaction mechanism relaxation at a pressure relaxation has appeared prevailing. The developed device for the description relaxation the phenomena is applied to comparison of the given primary and secondary polymers, in particular polyethylene of high density (LDPE), polypropylene (PP) and polyvinylchloride (PVC).