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In this paper, polyamide (PA, composed of at least 60% renewable materials) was used as a polymer matrix to prepare PA-hexagonal boron nitride (hBN) polymer composites with varying hBN contents. Two different PA samples were used in this study: a low viscosity grade PA (PA-30), as well as a high viscosity grade PA (PA-90). The composite polymers were tested to evaluate their thermal, physical, and mechanical properties. It was concluded that ...
Polyactic acid (PLA)-micro hexagonal boron nitride (hBN)-graphene nanoplatelet (GNP) polymer composites were prepared, and the effects of varying filler contents on the thermal and mechanical properties of the polymer composites were investigated. It was determined that the addition of the GNPs resulted in a decrease in thermal conductivity in comparison to a PLA-hBN composite unless the GNP:hBN ratio was 1:1, where the thermal conductivity was equal to that ...
A novel replication technique for the fabrication of 3D microstructures was developed. A polished silicon wafer was transferred onto an epoxy composite. The thermal properties of the epoxy composite were investigated and compared to those of the pure epoxy. It was determined that not only was the thermal conductivity increased, but the epoxy composite also showed an improvement in mechanical properties over the pure epoxy....
The use of 2,3-hydroxymethyl-2,3-dinitro-1,4-butanediol tetranitrate (SMX) as an oxidizer for solid composite rocket propellants was evaluated by the authors. SMX is an attractive alternative to the oxidizer used more traditionally, ammonium perchlorate (AP) because it is less toxic to the environment. It was found that SMX is very similar to AP in its handling characteristics, and thermal diffusivity; however, its thermal conductivity was lower than that of AP....
Synthetic polymers in starch-based polymer formulations improve the thermal and mechanical properties of the compounds. The purpose of this study was to develop and analyze foams containing ethylene-vinyl acetate (EVA) and varying concentrations of corn starch. A Thermal Constants Analyser measured the thermal conductivity of the EVA/starch samples using the transient plane source (TPS) method. Results showed that the thermal conductivity of the blends increased with starch content. The ...
