Analysis of Temperature Dispersion Curves of Dynamic Modulus in Cross-linked Polymers

Abstract

A quantitative method for the analysis of temperature dispersion curves of dynamic modulus is proposed.
Tobolsky's empirical equation for the time characteristics of relaxation modulus was applied to the real part of dynamic modulus and a corresponding equation for mechanical loss tan δ was deduced. These equations were then transcribed into the form of temperature characteristics.
It is shown that the temperature and the frequency dependence of the viscoelasticity can be evaluated separately from a temperature dispersion curve at a single frequency.