The Influence of Zinc Powder on Dissipative Processes in Latex PolymerстатьяИсследовательская статья
Информация о цитировании статьи получена из
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Scopus
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Дата последнего поиска статьи во внешних источниках: 8 января 2021 г.
Аннотация:The reasons for the expansion of the temperature range of inelasticity of a polymer material at temperaturesabove the glass transition temperature when it is filled with zinc powder, studied using the methodof dynamic mechanical relaxation spectroscopy, are analyzed. In the internal friction spectra of the filledpolymer, a decrease in the intensity of α-relaxation processes in the region of the glass transition temperature,which correlates with the nature of the temperature dependence of the frequency of the oscillatory process,as well as a change in the activity of the local μ-relaxation process at negative temperatures, was found. Theexpansion of the temperature range of inelasticity (elasticity) is associated with the disruption of intermolecularbonds in the polymer and the formation of new relaxation structures as a result of the interaction of itscarboxyl groups and oxide groups on the metal surface. The manifestation of μ-relaxation processes is associatedwith the formation of various forms of ice during freezing of a latex polymer at negative temperatures.