Category: Transient Plane Source
Keywords: Aerogels, Cryogels, Freeze dried, Hydrogels, Lignin-phenol-formaldehyde (LPF), Mesopore, Organic, Organic aerogels, Pore Size, Porous, resin, Thermal Conductivity, Transient plane source (TPS), Transient plane source (TPS) method, Volumes
Abstract: Lignin and phenol are inexpensive naturally derived resources that can be used to produce cost-effective organic gels. This paper aimed to examine the thermal properties of insulative organic aerogels and cryogels made from lignin and phenol. A Hot Disk TPS 2500 measured the thermal conductivity of the gels using the transient plane source (TPS) method. Results showed that, as expected, thermal conductivity increased with bulk density. Cryogels were found to be better insulators than aerogels at similar densities, but aerogels were better insulators at similar surface area.
Reference: Microporous and Mesoporous Materials, 168 (2013) 19-29