Composite Materials – Page 30 – TechConnect Briefs

High performance iPP based nanocomposite for food packaging application

Avella M., Errico M.E., Gentile G., INSTITUTE OF POLYMER CHEMISTRY AND TECHNOLOGY - CNR, IT

High performance iPP based nanocomposites filled with innovative calcium carbonate nanoparticles were prepared by melt mixing. Peculiarities of the nanoparticles were the high specific surface area, the elongated shape (aragonite), and the surface modifiers (polypropylene-maleic [...]

Multifunctional Nanocomposites Made of Polypropylene Reinforced with Exfoliated Graphite Nanoplatelets (xGnP)

Kalaitzidou K., Fukushima H., Drzal L.T., Michigan State University, US

Polypropylene is one of the most widely used polymers. It is an attractive material because of its combination of mechanical properties, ease of processing and low cost. This research explores modification of polypropylene through addition [...]

Protein can act as unique template to assemble gold nanoparticles in a linear fashion

Bhattacharya R., Patra C.R., Wang S., Lu L., Yaszemski M.J., Mukhopadhyay D., Mukherjee P., Mayo Clinic, US

Nanoparticles of metals possess unique chemical, electronic, optical and magnetic properties from their bulk counterpart because of the quantum size effects. The spatial orientation and arrangement of nanoparticles is important in the realization of technologically [...]

Nanostructures fabrication via self-assembly of hybrid block copolymer/nanoparticles in thin film

Fahmi A., Gindy N., University of Nottingham, UK

Fabrication of Nanostructures via self-assembly process is an elegant concept for the production the next generation of miniaturised devices. However, many challenges need to be overcome in 2D and 3D nanofabrication before the routine utilisation [...]

Formation and Coatings of Fine Particles in Jets of Supercritical Fluids

Gokhale A., Shen Y., Khusid B., Dave R., Pfeffer R., New Jersey Institute of Technology, US

Recently published studies of the formation of polymer particles in supercritical carbon dioxide are limited to the use of good organic solvents or their mixtures and relatively wide nozzles. In contrast, we use the new [...]

Paclitaxel Conjugate Block Copolymer Nanoparticle Formation by Flash NanoPrecipitation

Saad W.S., Mayer L., Princeton University, US

Nanoparticle formulations of drugs, printing inks, sun screens, and other hydrophobic organic compounds have distinct advantages in bioavailability, color intensity, and aesthetics. Common requirements of these applications are control of particle size and surface functionality. [...]

Nano-structuring of isotactic polypropylene in presence of a self-assembling nucleating agent under defined flow conditions

Balzano L., Rastogi S., Peters G., Technical University Eindhoven, NL

Presence of additives in polymers plays an important role in physical and mechanical properties. For an example DMDBS is one of the frequently used additives in polypropylenes. The additive is used to achieve higher transparency [...]

Electrochemical Synthesis of Polyaniline Nanoparticles and Nanofibers

Xavier M.G., Leite E.R., Leite F.L., Leite E.R., Leite F.L., Venancio E.C., MacDiarmid A.G., Mattoso L.H.C., ARS-USDA, US

It is known that the properties of polymers produced by the electrodeposition of aniline is strongly dependent on the experimental conditions used. In these electrochemical methods two main steps can occur, the (1) nucleation process [...]

Polymer Nanofibers from Multiple Jets Produced on a Porous Surface by Electrospinning

Dosunmu O.O., Chase G.G., Varabhas J.S., Kataphinan W., Reneker D.H., Microscale Physiochemical Engineering Center, US

Electrospinning involves the uniaxial stretching of a viscoelastic jet derived from a polymer solution or melt. The stretching is because of a very high voltage applied to the polymer solution (or melt) relative to a [...]

Production of Conducting Polymer Nanowires for Use as Intravascular Neural Recording Electrodes

Ruddy B., Watanabe H., Hunter I., Llinás R.R., Massachusetts Institute of Technology, US

A crucial factor limiting the adoption of brain-machine interfaces is the invasiveness of conventional microelectrode arrays. Recently, Llinas et al. proposed a new, less invasive form of microelectrode array, utilizing sub-micrometer insulated platinum wires placed [...]