Theoretical Evalution and Experimental Research on Thermal Insulation Performance of Graphitic Carbon-Doped Silica Aerogels

Abstract

Graphitic carbon-doped silica aerogels, including graphite-doped and graphene-doped silica aerogels, were fabricated by the sol–gel method. Thermal resistance was a significant comprehensive parameter which could reflect the ability to prevent the heat transfer. In order to give a direct evaluation of the thermal insulation performance, the calculated formula of thermal resistance for graphitic carbon-doped silica aerogel thermal insulation layers had been given through theoretic analysis on the basis of the thermal conductivity and the aerogel-based heat insulation layers showed good thermal insulation performance. It was expected that theoretical evaluation and experimental research could provide a reference for the reliability and performance in the field of the aerogel-based insulation layers.