Cross effects in the electrical resistivity variation of carbon black-polymer composites with the temperature
D. Reyes-Contreras [1], E. Vigueras-Santiago [2], S. Hernández-López [2], M. Mayorga-Rojas [1]

[1] Facultad de Ciencias, Universidad Autonoma del Estado de Mexico, UAEMex, [2] Facultad de Quimica, Universidad Autonoma del Estado de Mexico, UAEMex.

Abstract: We report the experimental observation of non-linear changes of electrical resistivity with respect to the temperature of thin-films of carbon black-filled polymer composites. After, applying the methods of irreversible thermodynamics, we identify the cross effects related to the heat flux, electrical transport and stress. In particular, we analyze and quantify the Onsager coefficients associated to the above mentioned cross effects.