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The goal of this study was to determine how adding CdS nanoparticles to two polymer blends (PS/PVC and PS/PMMA) affects their thermal conductivities. Also, the effect of increasing the wt% of both PVC and PMMA in their respective blends was investigated. The thermal conductivity of the samples was determined through a transient plane method. The thermal conductivity of both polymer blends increased with the addition of CdS nanoparticles. When the wt% of PVC was increased in the PS/PVC blend, the thermal conductivity decreased. When the wt% of PMMA was increased in the PS/PMMA blend, the thermal conductivity increased.
Graphite papers can enhance mechanical properties while lowering electrical properties, however, to generate conducting membranes, the chemical and thermal characteristics of the papers require further reduction. In this study, mercaptobenzene (MB) functionalized graphite and epoxy-based hybrid membranes were prepared and analyzed. A thermal analyzer measured the thermal conductivity of the samples using the transient plane source (TPS) method. Results showed that the powder-pressed pellets made of graphite-MB-gold nanoparticles (AuNPs) had higher thermal conductivities than other materials at similar loading weights. This suggests that the AuNPs successfully improved the thermal conductivity of the composites.
The purpose of this study was to measure the thermodynamic properties of 1-hexyl-3-methylimidazolium tetrafluoroborate ([HMIM]BF4) and its graphene-dispersed ionic liquid based nanofluids (Ionanofluids) from room temperature to 200 °C. A thermal analyzer measured the thermal conductivity of the samples using the transient plane source (TPS) method. Results showed that the thermal conductivity of [HMIM]BF4 and the GE-dispersed Ionanofluids increased linearly with temperature, and with mass particle fraction. It was determined that GE was a more effective filler than other carbon and metal nanoparticles because the thermal conductivity of the [HMIM]BF4/GE solution was higher than commercial brands.
The purpose of this study was to fabricate and analyze the physical properties of polyacrylate–gold nanocomposites (PGNs) with gold nanoparticles (GNPs) as their nucleation agents. The transient plane source (TPS) method was used to measure the thermal properties of the polyacrylate–gold nanocomposite foams (FPGNs) and PGNs. Results showed that the addition of GNPs improved thermal conductivity of the PGN materials, but as the size of GNPs increased, the enhancement percentage of thermal conductivity decreased.
