Modified Technogenic Asphaltenes as Enhancers of the Thermal Conductivity of Paraffin.

ABSTRACT: The low thermal conductivity of paraffin and other organic phase change materials limits their use in thermal energy storage devices. The introduction of components with a high thermal conductivity such as graphene into these materials leads to an increase in their thermal conductivity. In this work, we studied the use of inexpensive carbon fillers containing a polycyclic aromatic core, due to them having a structural similarity with graphene, to increase the thermal conductivity of paraffin. As such fillers, technogenic asphaltenes isolated from ethylene tar and their modified derivatives were used. It is shown that the optimal concentration of carbon fillers in the paraffin composite, which contributes to the formation of a structural framework and resistance to sedimentation, is 5 and 3

SUBMITTER: Gorbacheva SN 

PROVIDER: S-EPMC9920510 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature