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This paper presents the idea of flavonoid foams that are manufactured from natural resources rather than formaldehyde-containing tannin-based foams. A TPS instrument measured the thermal conductivity of the foams using the transient plane source (TPS) technique. Results show that the flavonoid foams are a better choice than tannin-based foams because they have a lower thermal conductivity which makes them more insulative and fire resistant, and they do not release toxic ...
The authors prepared silica aerogel/polyurethane composites by two different methods for the comparison of the two methods. The objective was to study the thermal insulation and hydrophobic properties of the composites to evaluate their potential for use as fabric membranes. It was found that the composites are better thermal insulators than polyurethane alone, and that they also have improved hydrophobic properties. It was also determined that the thermal conductivities ...
Recycled tyre rubber was used to replace varying fractions of limestone as filler in asphalt in order to determine the effect that the added rubber would have on the thermal and physical properties of the asphalt. The properties of interest were the penetration, soft point, and ductility of the asphalt binder, as well as the moisture sensitivity, thermal conductivity, thermal diffusivity, and volumetric thermal capacity of the asphalt mixtures. It ...
The potential for the use of silica aerogels doped with TiO2 nanowires as thermal insulators was evaluated. It was found that the TiO2-doped aerogels showed good thermal insulation properties and that other desirable properties were retained upon the addition of TiO2 nanowires....
The researchers used an instrument to measure the thermal properties (thermal conductivity and specific heat) of anisotropic thermally insulating foams produced by the mixing of nanocellulose, graphene oxide and sepiolite nanorods via the freeze-casting method. These anisotropic foams showed superior thermal properties when compared to expanded polystyrene (a common insulation material), and had a thermal conductivity value of 0.015 W/mK which is half the value for expanded polystyrene. Not only ...
