Stability and Thermal Conductivity of Deep Eutectic Solvent based Graphene Nanolubricant

摘要

This work focuses on synthesizing stable Deep Eutectic Solvent (DESs) based Graphene oxide (GO) nanolubricant without the aid of surfactant and thereby enhancing its thermos-physical properties. The nanolubricants are produced through strong hydrogen bond interactions wherever various organic salts (Methyl-triphenyl-phosphonium-bromide, MTPB) and Hydrogen Bond Donors (HBDs) such as glycerol are mixed with different molar ratios. Concentration of GNP was also varied from 0.01-0.02 wt%, respectively. The samples were stable up to 6 weeks and maximum thermal conductivity enhancement was observed to be 17% enhancement.