2015 (1) 5

https://doi.org/10.15407/polymerj.37.01.034

The role of the reference temperature in the construction of generalized viscoelastic functions for predicting damping properties of epoxy polymer

N.V. Babkina, M.G. Tkalich,  A.A. Brovko

Institute of Macromolecular Chemistry NAS of Ukraine

48, Kharkivske shоse, Kyiv, 02160, Ukraine

Polym. J., 2015, 37, no. 1: 34-40.

Section: Structure and properties.

Language: Russian.

Abstract:

The temperature and frequency dependences of viscoelastic behavior of epoxy polymer were obtained by dynamic mechanical analysis method. Master curves for three reference temperatures 80, 95 and 110 °C were constructed using the principle of time-temperature superposition and the method of reduced variables. The efficiency  of time-temperature superposition principle to predict the damping properties of the polymeric material in a wide range of frequencies that considerably exceeds the experimental abilities was shown. The role of reference temperature for construction of the generalized viscoelastic functions was analyzed. The reference temperature it was found should correspond to the temperature of polymer exploitation for a correct prediction of its damping properties.

Keywords: epoxy polymer, viscoelastic properties, damping properties, time-temperature superposition, reference temperature.

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