Electroconductive Polymer Repellent Composites Based on ,-Diethyl-3-methylbenzamide.

In this study, electrically conductive polymer composites based on repellent ,-diethyl-3-methylbenzamide with concentrations ranging from 6 to 30 wt% were developed. The electrical resistivity of repellent composites, as determined by electrochemical impedance spectra, ranges from 150 to 171 Ohm, which allows such materials to be used when a low voltage is applied. The study of the rheological properties of the obtained repellent composites and the analysis of the TGA curves demonstrated that the dynamic viscosity of the materials has a significant effect on the thermal diffusion of the repellent. The study of the thermal diffusion of ,-diethyl-3-methylbenzamide demonstrated that a higher yield of repellent (up to 36.4 × 10 mol) is achieved when the material is applied in the form with the shortest conductor length of 14 mm. The graphs showing the relationship between the electrical flux and the concentration of ,-diethyl-3-methylbenzamide, which was calculated via the Peltier and Thompson equations, show that, according to Onsager's theory, the total flux of the substance is highest when a voltage is applied to the material with the shortest conductor length. Thus, the developed repellent composite is a promising material for protection against blood-sucking insects.