Abstract
A method has been developed for the experimental determination of the components of the complex thermal conductivity of thin polymer films. The method is based on measuring the temperature difference on both surfaces of a film in which a periodic temperature wave is excited. Formulas are obtained that relate the observed temperatures to the mentioned components. Using the proposed method at a temperature of 293K in the frequency range (0.01÷0.25) Hz, the frequency dependences of the complex thermal conductivity for cellulose films (thickness 150 um), fluoroplastic (600 um) and polypropylene (600 um) were obtained.
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