Abstract
Three-dimensional (3D) interconnected porous carbon foams made of delayed coke and mesocarbon microbeads (MCMB) have been successfully fabricated using the protein foaming method. The structure, compressive strength and thermal conductivity were characterised. Carbon foams have porous structure of open cells and dense struts. The maximal density (0.43g/cm3) and compressive strength (2.05Mpa) of carbon foams were obtained at the MCMB concentration of 10wt%. The thermal conductivity did not change till the concentration of MCMB over 15wt% and as low as 0.26W/mK at 100°C. Therefore, these carbon foams have potential for use as the thermal insulator.
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