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 ...
The addition of Cu nanoparticles to water was studied at different pH values and different dispersant concentrations by the measurement of zeta potential and absorbency. Thermal conductivity was measured. It was found that the ideal properties of the nanofluid were obtained at pH 9.5....
An organic phase change material (PCM), tetradecanol (TD), infused with copper nanowires (CuNWs), was sent through a slurry of tests, to determine the effect of the ultra-high aspect ratio and sponge nature of the CuNWs, on the PCM. Experimental testing alluded to the increased thermal conductivity of the PCM, with the addition of the CuNWs. The addition of CuNWs, enhanced the thermal conductivity of the PCM by nearly 9 times. A ...
A novel technique was used in this research article, to introduce a hybrid mesh to a polymer composite within bipolar plates, for proton exchange membrane fuel cells (PEMFCs). The mesh added was copper or aluminum based, to allow for an increased thermal conductivity of the PEMFCs. Experimental testing confirms this theory, as the copper-meshed hybrid polymer composite showed a thermal conductivity of 30.0 W/mK, while the aluminum-meshed hybrid polymer composite ...
Colloid chemistry has been of interest for many years. Researchers have begun to study the effects of metal particles on the stability and thermal properties of cooling liquids. The purpose of this study was to introduce metal particles to a solvent, resulting in a stable and thermally enhanced colloid. To serve as a reducing agent and a particle stabilizer, a cyclodextrin-glucose host-guest complex was synthesized to create aqueous metal colloids. ...
