▎ 摘　　要

NOVELTY - A hydraulic fluid mixture comprises pure paraffin having increased heat conductivity coefficient, and graphene material having thermal conductivity coefficient remarkably higher than that of usual materials. The hydraulic fluid mixture provides improvement in response time of thermo-elements, and improvement in response time to be sustainable throughout lifetime of thermostat assemblies, and decreases decomposition risk by showing close-homogeneous distribution. USE - Hydraulic fluid mixture is used for providing improvement in response time of thermo-elements, and improvement in response time to be sustainable throughout lifetime of thermostat assemblies, for use in inner structure of thermostats that have importance for automotive sector.