Analysis of the Equivalent Thermal Conductivity of Nanopaper/Polymer Composite Materials

The finite element software FLUENT is used to analyze the equivalent thermal conductivity of composites reinforced by pulse bending and flat nanopaper during the heating process. When the whole is regarded as an apparent homogeneous medium, effective thermal conductivity (ETC) changes with the thermal conductivity of the insulator. The smaller the thermal conductivity of the insulator is, the more the equivalent thermal conductivity in the X and Y directions deviates from the linear average, while the equivalent thermal conductivity in the direction of Z keeps a good agreement with the linear average. The equivalent thermal conductivity of the three directions varies with the thermal conductivity of the insulator. In the direction of Y, the more the coefficient of thermal conductivity decreases, the more the degree of the equivalent thermal conductivity deviates from the linear average, and the equivalent thermal conductivity in the direction of X and Z has always been guaranteed by the linear average. A good degree of anastomosis is held.