Effect of C_(60) fullerene additions on the thermal conductivity of low-density polyethylene films

摘要

The thermal conductivity of LDPE + C_(60) nanocomposites with a fullerene concentration up to 10 wt % is studied in the temperature range 20-80°C. This conductivity is found to nonlinearly decrease with increasing fullerene concentration. The decrease in the thermal conductivity of the composites is considered to be caused by a decrease in the phonon mean free path as a result of an increase in the number of scattering centers. The temperature dependence of the thermal conductivity is found to have a maximum.