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This article investigated the effects of incorporating silica layers into polypropylene nanocomposites. The influence of the silica layers on the thermal conductivity of the material is compared to the influence of other fillers to determine which is superior. The authors found that particle size and number affect the thermal conductivity in addition to content percentage. The silica layers produced a more impressive increase in thermal conductivity than other fillers on ...
Carbon/liquid-crystal polymer composites were formulated. Composites containing one of three types of carbon filler, composites containing two types of carbon filler, and composites containing all three types of carbon filler were prepared to test not only the effect of each filler on the thermal conductivity of the composite, but also the effect of combining fillers. The anisotropic method on a TPS system was used for the thermal conductivity measurements. ...
Composite carbon foams were prepared by mixing tannin-based resin with various graphite powders in an effort to improve the thermal conductivity relative to pristine carbon foams in order to use them as hosts for phase-change materials. It was found that using graphite powder with smaller particle sizes resulted in foams with a higher bulk density than those prepared with an equal amount of larger graphite particles, this increased density resulted ...
Sulfonated polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene (SPSPB) was used as a polymer matrix to create polymeric nanocomposites using graphite (G) and graphite-polyoxometalate (G-POM) as fillers. It was found that the nanocomposites had higher thermal and electrical conductivities than SPSPB alone, and that both the thermal and the electrical conductivity increased with increasing filler concentration. At all filler contents tested, the SPSPB/G-POM had both a higher thermal conductivity and a higher electrical ...
Conductive carbon fillers (carbon black, carbon fiber, and synthetic graphite particles) were added to Vectra A950RX liquid crystal polymer and the axial and radial thermal conductivities were determined experimentally for each composite. The addition of Thermocarb TC-300 synthetic graphite caused the largest increase in thermal conductivity, with in-plane thermal conductivity values reaching greater than 20 W/m K which is the minimum value for use in fuel cells. Mathematical models ...
