Temperature Dependence of Thermophysical Properties of Carbon/Polyamide Composite

In this study, the temperature dependence of heat capacity, thermal expansion, density, and thermal conductivity of carbon/polyamide composites has been studied. Results showed that the specific heat capacity of the C/PA composite increases with temperature, and major transitions have been observed at glass transition (Tg) and melting (Tm) temperatures. Due to the presence of fibers, the CTE values in the fiber direction of C/PA samples were smaller by an order of magnitude than in the transverse direction. The density measurement results showed that with an increase in temperature, volume increases, so density decreases. The laser flash technique has been used to measure the heat diffusivity of the C/PA composite, which is then used to calculate thermal conductivity. Results showed that the average thermal conductivity increases with temperature along the fiber direction and increases with a small rate in the beginning and is almost uniformly distributed later, in the transverse direction.

ISBN:978-2-9701614-0-0

Jaar van publicatie:2022

Toegankelijkheid:Open