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Author(s): , , , , , , ,

Keywords: , , , , , , , , , , , , , , , , , , , ,

Abstract: Aerogels are ultra-light, insulative, porous materials that have a wide variety of applications. The aim of this study was to synthesize resorcinol/formaldehyde (RF) cross-linked silica aerogels in one pot by acid catalysis. A Hot Disk TPS2500 thermal constant analyzer measured the thermal conductivity of the RF/SiO2 aerogels using the transient plane source (TPS) method. Results showed that although the RF/SiO2 aerogels had a lower density, their thermal conductivities resembled those of glass wool, and increased slightly after the carbonization process. Overall, the aerogels were highly efficient, and synthesizing other RF/oxide aerogels by one pot acid catalysis should be examined in the future.

Reference: Journal of Sol-Gel Science and Technology, 62, 3 (2012) 294-303

DOI: 10.1007/s10971-012-2722-x