Polymer Composite Heating Elements Designed to Provide a Comfortable Temperature for the Human Body
Summary of Doctoral Thesis
Astrīda Bērziņa, Riga Technical University, Latvia
The Thesis examines the influence of composite heating on electrical conductivity by heating externally and in self-heating mode with an applied voltage. For polychloroprene carbon black composites, a negative temperature coefficient of resistance (TC) is observed, but for ethylene-octene (EOK) carbon black (CB) composites, a positive TC is determined, so EOK-CB composites can act as a self-regulating heating material. A polar matrix has a significant impact on the overall electrical conductivity of the composite compared to a non-polar one. The images obtained from the electroconductive mode of the atomic force microscope for the EOK-CB composites are analysed to characterise the arrangement of particles in the composite.
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