nanocomposites – Page 2 – TechConnect Briefs

Influence of CNT concentrations to polyurethane / multi-walled carbon nanotube composites on the thermoelectric performance

Wu Q., Hu J., The Hong Kong Polytechnic University, HK

In this paper, we investigated the possibility of applying polyurethane in thermoelectric application, and the influence of MWNT concentrations to polyurethane / multi-walled carbon nanotube composites on the thermoelectric performance. Polyurethane was used as the [...]

Non-conductive ferromagnets based on core double-shell nanocomposites for radio-electric applications

Takacs H., Viala B., Hermán V., Tortai J.-H., Duclairoir F., Alarcon Ramos J., Jouneau P.-H., Okuno H., Tallec G., CEA, FR

We report a novel flexible nanotechnology for consumer product engineering as a complementary approach from solid-state manufacturing techniques based on metallic nanoparticles and graphene chemistries. We describe two chemical routes for producing closely-packed disordered assemblies [...]

Cross-Linked Single-Walled Carbon Nanotube Buckypapers and their Composites

Guan J., Jakubinek M.B., Ashrafi B., Johnson M., White M.A., Simard B., National Research Council Canada, CA

Single-walled carbon nanotubes (SWCNT) covalently modified with OH functional groups were assembled into buckypapers through solvent dispersion and vacuum filtration. These SWCNT-OH buckypapers were subsequently crosslinked by wetting with bifunctional linkers followed by hot compression, [...]

Effect of Reactive Ball Milling Time on the Hydrogenation/Dehydrogenation Properties of Nanocomposite MgH2/7TiMn1.5 Powders

Sherif El-Eskandarany M., Al-Matrouk H., Shaban E., Al-Duweesh A., Kuwait Institute for Scientific Research, State of Kuwait, KW

Reactive ball milling (RBM) technique was employed to synthesize ultrafine powders of -MgH2 phase coexisted with small mole fractions of -MgH2 phase. The metal hydride powders were prepared at room temperature under 50 bar of [...]

Synthesis, characterization and in vitro evaluation of cytotoxicity and antimicrobial activity of chitosan-metal nanocomposites

Chaudhury A., Kaur P., Barnela M., Chopra M., Manujab A., Thakur R., Guru Jambheshwar University of Science & Technology, IN

Engineered multifunctional nanowires as novel biosensing tools for highly sensitive detection and Biosensors as innovative tools for detection of food borne pathogens and environmental virology have been well documented. Advanced applications require appropriate chemical functionalization [...]

The Study of Surface Accumulated Silica Nanoparticles from “Weathered” Polymer Nanocomposites Using ICP-OES

Rabb S.A., Stanley D., Sung L., Nguyen T., Yu L.L., National Institute of Standards and Technology, US

The impact of nanoparticles on the environment and, more importantly, the human population has been of great interest for the past few years. Release of these nanoparticles from different materials from wear or climate exposure [...]

Enantioselective desymmetrization of meso-cyclopent-2-en-1,4-diacetate to 4-(R)-hydroxycyclopent-2-en-1-(S)-acetate using enzyme immobilized superparamagnetic nanocomposites

Eizadi Sharifabad M., Sen T., University of Central Lancashire, UK

Enzymes are well established as catalysts for various bio-transformations. However, it is difficult to remove the expensive enzymes from the reaction mixtures. Hence, immobilization of enzymes on solid support is a very important step for [...]

Continuous Extrusion Process for Preparation of Polymer Nanocomposites

Shearer J.D.M., Barry C.M.F., Mead J., University of Massachusetts-Lowell, US

Polymer nanocomposites are composed of a nanofiller with a polymer matrix. Typical fillers include nanoclay, carbon nanotubes, nanoparticle silver, nanoalumina, etc. The materials exhibit unique material properties, such as improved barrier properties, flame retardance, and [...]