Abstract

A method to experimentally determine the components of complex thermal conductivity for thin polymer films has been developed. It is based on measuring the temperatures of both sides of a film in which a periodic temperature wave is excited. Formulas have been derived that relate the measured temperatures to the thermal conductivity components. Using this method, the frequency dependences of the complex conductivity for cellulose (150 μm thick), fluoroplastic (600 μm), and polypropylene (600 μm) films have been obtained in the frequency range of 0.01–0.25 Hz at 293 K.

中文翻译：

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聚合物薄膜复电导率的频率依赖性

摘要

已经开发出一种实验确定聚合物薄膜的复导热性成分的方法。它基于测量被周期性温度波激发的薄膜两侧的温度。得出了将测得的温度与导热系数相关联的公式。使用这种方法，在293 K的频率范围为0.01-0.25 Hz时，获得了纤维素（150μm厚），氟塑料（600μm）和聚丙烯（600μm）薄膜的复电导率的频率依赖性。