Investigation of the loss factor and the strength of damping materials based on ethylene-vinyl acetate modified with rubbers

Abstract

Investigation of the loss factor and the strength of damping materials based on ethylene-vinyl acetate modified with rubbers

Volotskoy A.N., Yurkin Yu.V., Avdonin V.V.

Incoming article date: 25.11.2019

This article is devoted to the problem of development of damping polymer materials with high damping properties in a wide temperature range. The purpose of this article is to study the loss factor and strength of polymer materials based on ethylene-vinyl acetate when additional polymers in the form of rubbers are added to them. The leading method to investigate this problem is the method of dynamic mechanical analysis, which allows to obtain information about changes in the dynamic properties of polymeric materials subjected to oscillating loads depending on frequency and temperature. According to established experimental dependences, it was possible to define the type of additional polymer expanding the temperature range of effective damping and increasing tensile strength of composites based on ethylene-vinyl acetate. The percentage content by volume of the additional polymer was established at which its efficiency on the dynamic and mechanical properties of composites on ethylene-vinyl acetate basis will be greatest.

Keywords: ethylene-vinyl acetate, polymer, chlorobutyl rubber, nitrile butadiene rubber, strength, damping, glass temperature, dynamic mechanical analysis