Experimental device for study of the thermal stimulated direct current in the composite materials

Presents the device for analysis the thermally stimulated electrical conductivity of composites in the wide temperature range. The main advantage of the module in relation to those described earlier is that it allows experiments both in the mode of measuring the current of thermally stimulated depolarization (TSDC) at low temperatures, and in the mode of measuring the thermally stimulated conductivity current (TSCC) up to very high temperatures. Using PMMA/PVDF mixtures as an example, it is shown that the TSDC method can be used to temperature transitions analysis in the many composite materials at low temperatures. It was also shown on the example of the two-component epoxy networks that the described module makes it possible to study the thermal transitions in the composites materials using the TSCC mode to the high temperatures.

Automated summary

This study presents a device for analyzing the thermally stimulated electrical conductivity of composites over a wide temperature range. The main advantage of this device is that it allows experiments in both the mode of measuring thermally stimulated depolarization current (TSDC) at low temperatures and the mode of measuring thermally stimulated conductivity current (TSCC) at high temperatures. The results demonstrate that the TSDC method can be used to analyze temperature transitions in many composite materials at low temperatures and that the described device enables the study of thermal transitions in composites using the TSCC mode at high temperatures.