Prediction of creep of cured expoxy resin filled with marble flour

Conclusions

• 1. We discovered that the principles of TTA, CTA, TCTA are applicable to the description of series of diagrams of short-time creep of epoxy resin filled with marble flour, at different temperatures (20–60 °C) and with different concentrations of filler (c < 0.45).

• 2. It was experimentally established that the function of temperature-time reduction of filled resin does not depend on the degree of filling and coincides with the function of temperature-time reduction of unfilled binder; the function of concentration-time reduction does not depend on the temperature.

• 3. The applicability of the principles of analogy to the prediction of long-time creep of the filled polymer under consideration was experimentally established.

• 4. Modeling and calculation of the deformation properties of a composite on the basis of its structural components showed that near particles of filler there can be an interphase layer whose rigidity is greater than the rigidity of the matrix, and the pliability for all the time sections is proportional to the pliability of the matrix.

• 5. The results of evaluating the extension of the interphase layer correspond qualitatively to the results of the experiment for determining the thickness of the interphase layer by the method of viscosimetry.