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Using a three-roll mill process, graphite nanoplatelets (GNPs) were dispersed in a silicone polymer for application as a thermal interface material. Through the use of electron microscopy and XRD, the researchers were able to determine that the GNPs dispersed better when using the three-roll milling process as compared to previously used methods. GNPs were mixed with the silicone polymer in wt.% up to 25, with the highest wt.% yielding the highest ...
Polyoxymethylene (POM) composites were prepared by using varying concentrations of copper particles and tested thermally via tribologically via an M-2000 friction and abrasion testing machine. A copper concentration below 10 wt.% didn't affect the thermal properties of the POM composite but using higher concentrations resulted in improved thermal conductivities. Using a copper concentration of 25 wt.% resulted in a thermal conductivity value 35.9% higher than unfilled POM. In addition to the improved thermal ...
Through the use of thermally conductive fillers the thermal properties of polystyrene (PS) are improved significantly. The different fillers include: aluminum oxide (Al2O3), magnesium oxide (MgO), B-silicon carbide particles (B-SiCp), and B-silicon carbide whiskers (B-SiCw). The use of PS flakes resulted in higher thermal conductivities than the use of PS particles, and the use of B-silicon carbide whiskers resulted in the most favorable thermal conductivity and resulted in a ...
A series of polymer-matrix composites were synthesized by using a variety of carbon nanotubes (single-walled carbon nanotubes (SWCNTs), double-walled carbon nanotubes (DWCNTs) and multi-walled carbon nanotubes (MWCNTs)) and a polymer matrix (either polystyrene (PS) or poly(methyl methacrylate) (PMMA)). Different surfactants and polymerization methods were also used in order to generate a wide range of different composites. These different composites were all tested for thermal and electrical conductivity and characterized ...
