Prediction Model of Thermal Conductivity for Composite Materials Based on Non-Equilibrium Thermodynamics

With the widespread application of composite materials in various industrial fields, accurate prediction of their thermal conductivity has become crucial. Traditional models, based mainly on equilibrium thermodynamics, fail to adequately describe the thermal behavior of composite materials under non-equilibrium conditions. This paper introduces a novel thermal conductivity prediction model based on non-equilibrium thermodynamics, focusing on entropy production adjustments and thermal conductivity prediction considering entropy production. By thoroughly analyzing the microstructure and interface characteristics of composite materials, this study aims to enhance the accuracy of thermal conductivity predictions and provide theoretical support for efficient thermal management of composite materials. The results indicate that this model effectively predicts the thermal conductivity of composite materials under non-equilibrium conditions, offering high practical value.