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Author(s): , , , , , , , , ,

Keywords: , , , , , , , , , , , , , , , , , , , , ,

Abstract: A paraffin-based composite phase change material (PCM) was prepared by the addition of hexagonal boron nitride (h-BN) nanosheets to melted paraffin wax followed by vigorous stirring. The nanosheets were added in quantities ranging from 1 to 10 wt. %. A reference sample of pure paraffin was also prepared. It was determined that the addition of h-BN nanosheets resulted in an increase in thermal conductivity and that the melting and solidification rates were also accelerated as a result of this addition. The composite PCMs described in this article were prepared without surfactants. This resulted in precipitation of h-BN nanosheets as the PCM was consecutively heated and cooled. Further studies needed to be performed to determine the effects of h-BN shape, size, and thickness on the properties of interest.

Reference: Energy Conversion and Management, 80 (2014) 103-109

DOI: 10.1016/j.enconman.2014.01.016