The thermal diffusivity and the thermal conductivity of polypropylene-based
composite polymer were simultaneously measured with a temperature wave ana
lysis method. We can measure the thermal properties under cooling process w
hich are important to consider the polymer processing. The effect of filler
in the composite was analyzed by thermal diffusivity and thermal conductiv
ity as a function of temperature. The thermal conductivity of particle disp
ersed composite was confirmed as a reasonable value and was explained with
a series model.