To improve the thermal conductivity of polymeric matrixes, conducting fillers were added to polymers, specifically graphite, having good thermal conductivity and dispersibility. Exfoliated graphite (EG) and graphite nanoplatelets (GNP) are excellent alternatives to metal and carbon as conductive polymer composites, through solution mixing and melt blending techniques. Thermal conductivity of composites was measured by a thermal analyzer, using the transient plane source (TPS) method. Solid-state shear milling treated composites showed ...
One way to improve thermal and electrical conductivity of conventional polymers is by combining polymer matrices with highly conductive fillers. This study involves an analysis of electrical and thermal conductivities of nonirradiated and irradiated samples of ethylene vinyl acetate 18 (EVA18) containing expanded graphite (EG) or SDS-EG. Thermal conductivity measurements were at room temperature. An increase in thermal conductivity was found with increasing filler content in all investigated samples, due to ...
In this study, the influence of silver phase on thermal properties of BaTiO₃/Ag composites are investigated. A thermal analyzer was used to measure the thermal conductivity and thermal diffusivity of the composites at ambient and elevated temperature up to 175°C. Results found that for a fixed silver composition, the thermal conductivity of the composite remained nearly constant below its tetragonal to cubic transformation temperature (120°C), then decreased and stayed ...
Carbon foams are novelty materials that have a wide range of applications such as radiators, thermal protection, and fire-resistant cores. The main carbon sources of carbon foams are sucrose, coal, coal tar pitch, and petroleum pitch, however the foams that use sucrose as their primary source have low thermal conductivity. This paper examined the thermal properties of carbon foams derived from sucrose but used graphite fillers to improve thermal conductivity. ...
Plasters have many applications such as increasing the thermal resistance of walls, moderating humidity, and maintaining indoor air quality. In this study, the hygrothermal properties of two types of plaster were tested. The thermal conductivity and thermal diffusivity of the plaster samples were measured using the transient plane source (TPS) method at 23 °C. Results showed that the plaster with lower density and higher porosity had the lowest thermal conductivity....
