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This study aimed to develop a new method based on the transient plane source (TPS) technique to simultaneously measure the in-plane and across-plane thermal conductivities of anisotropic insulating materials using one experimental test. It was found from the experimental results of the thermal conductivities of the anisotropic silica aerogel samples that both the in-plane thermal conductivity and cross-plane thermal conductivity increased with increasing the ambient temperature. The results demonstrated that ...
Compared to traditional epoxy, polybenzoxazine resins have improved thermal, mechanical, and electrical properties. In this article, spherical aluminum nitride (AIN) was studied as a filler in bisphenol A-aniline-based polybenzoxazine (poly(BA-a)). Thermal conductivity was obtained by transient plane source method. Thermal conductivity of each composite gradually increased with enhanced filler amount. Poly(BA-a)/AIN composites also had higher thermal conductivity than systems containing epoxy/AIN....
Graphite nano-platelets (GnPs) were dispersed in polyethylene glycol (PEG)/polymethyl methacrylate (PMMA) to form a PEG/PMMA/GnPs composite organic form-stable phase change material. The effects of the incorporation of the GnPs on the morphological, structural, thermal, and electrical properties of the composite were then assessed. The experimental results indicated that the incorporation of the GnPs into the polymer increased the thermal and electrical conductivities, and it was concluded that ...
Ultrathin boron nitride nanosheets (BNNSs) were prepared at 300°C by a new variable-pressure one-step synthesis. An increase in pressure during the synthesis results in a decreased thickness for the nanosheets, which were all triangular in shape with zig-zag edges. The synthesized nanosheets exhibit high adsorption capacities for the organic dye methylene blue (MB). In addition to these properties, the BN nanosheets can be used as excellent thermal-conducting additives in BN-polymer ...
Through the addition of graphite powder (GP) and expanded graphite (EG) the authors were able to increase the thermal conductivity of a shape-stabilized paraffin/high density polyethylene (HDPE) composite phase change material (PCM). GP and EG were added in different mass fractions and a Thermal Constants Analyzer was used in order to measure the thermal conductivity. The relationship between mass fractions of GP and EG added were found to have ...
