SOME PECULIARITIES OF PROPERTIES OF POLYMER MATERIALS BASED ON 4-AMINOSTYRENE IN THE FIELD OF HIGH LOCAL STRESSES

Раиса ЖИТАРУ*, Наталия ПАЛИСТРАНТ*, Штефан РОБУ**, Михай ЕНАКИ***, Никанор БАРБЭ** *Институт прикладной физики АН Молдовы **Молдавский государственный университет ***Национальный Центр исследования и тестирования материалов Технического университета Молдовы

Abstract

The change of mechanical properties of the polymer compositions baseв on aminostyrene in process of long-term keeping (storage) at room temperature as well as in the case of introduction of the 1-6 wt% of benzoyl peroxide elements as addition into matrix of the polymer compositions was investigated. The essential strengthening of polymer compositions was found. It was revealed that the field of the stresses of preliminarily deformation formed by concentration load made for the decrease of relaxation rate of residual plastic deformation. While these parameters of indents in non-deformed preliminarily zones of sample are decreased in time. Keywords: polymer compositions, storage, strengthening, microhardness, proxide benzoil.