Author(s): , , , ,

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

Abstract: A variety of tannin-formaldehyde aerogels were produced in order to examine the effects of pH and dilution during their manufacture. The authors produced a phase diagram that could describe them. Extensive physical property characterization was performed on the sample aerogels, including porosity, thermal conductivity, volume shrinkage, BET surface area and microscopic texture. Conditions under which the highest surface area and pore volumes were produced were identified. The TPS instrument was used to measure thermal conductivity, and it was determined that the aerogels were good insulators, but did not have super insulator capabilities.

Reference:  Science and Technology of Advanced Materials 14(1) (2013)