nanocomposites – Page 11 – TechConnect Briefs

Interface-Property Relationships in Hybrid Nanocomposites from Near Net-Shape Manufacturing

Mitchell B.S., Tulane University, US

Near Net-Shape Manufacturing is a two-step materials processing technique, in which nanoparticles are formed via mechanical attrition, from which nanocomposites are formed by consolidation and densification using Hot Isostatic Pressing (HIP). The technique is general [...]

Layered Oxide Polymer Nanocomposites: Synthesis, Characterization, and Strategies for Achieving Enhanced Barrier Property

Hansen T.J., Barber P., Ma J., Ploehn H.J., zur Loye H.-C., University of South Carolina, US

Our research goal is to enhance the gas barrier of polymer nanocomposites using exfoliated layered materials. We have synthesized various layered oxides, ranging from layered polysilicates to perovskites, and explored novel modification techniques. Polymer films [...]

Thermoplastic polyurethane nanocomposites: effect of organoclay structure and hard segment concentration on morphology and properties

Chavarria F., Paul D.R., The University of Texas at Austin and Texas Materials Institute, US

Thermoplastic polyurethane (TPU) nanocomposites were prepared by melt processing using a twin screw extruder. The effects of organoclay structure and hard segment concentration of the TPU matrix on mechanical properties and morphology of the nanocomposites [...]

Labeling of Cells with Silver and Gold Host-Guest Nanocomposites

Balogh L.P., Lesniak W., Sinani V.A., Bielinska A.U., Sun K., Nair B.M., Waite E., Kariapper M.S.T., Khan M.K., Roswell Park Cancer Institute, US

Nanocomposites combine the properties of nano-sized inorganic guest atoms/molecules with their nanoscopic size polymer host. We have synthesized water-soluble, biocompatible, fluorescent, and stable nanocomposites with regulated surface charge and controlled size for cell labeling studies. [...]

Polyamide 6-Organoclay- Impact Modifier Nanocomposites

Isik I., Yilmazer U., Bayram G., Middle East Technical University, TR

Polyamide-6, organically modified montmorillonite, and ethylene/glycidyl methacrylate (E-GMA) and ethylene/butyl acrylate/glycidyl methacrylate (E-BA-GMA) terpolymers acting as impact modifiers for polyamide were melt blended in order to investigate the effects of component concentrations on the final [...]

Application-Specific Detonation Nanodiamond Particulate

Shenderova O., McGuire G., Petrov I., Spitsyn B., Puzur A., Kuznetsov V., International Technology Center, US

We will discuss several approaches to DND modification and surface functionalization that results in particles sizes ranging from tens to hundreds of nanometers that are stable in a variety of solvents. DND specific for biological [...]

Elastic Network Model of Polymer Nanocomposites

Jang Y., Nair S., Kim M.K., University of Massachusetts Amherst, US

We present a novel simulation technique for modeling the nano and micro scale behaviors of plastic flow and fracture around crack tips of polymer nanocomposites. A coarse-grained elastic network model (ENM) simply represents the interations [...]

The Role of Different Parameters in the Properties of Carbon Nanotube Polymer Nanocomposites

Velasco-Santos C., Castaño V.M., CFATA-UNAM /ITQ, MX

This work presents diverse results which depend on different parameters that play an important role in the distribution, interaction and synergetic effect in composites developed with the incorporation of multiwalled nanotubes in different polymeric matrix. [...]

Organic, Cluster Assembled and Nano-Hybrid Materials Produced by Supersonic Beams: Growth and Applications to Prototype Device Development

Iannotta S., Aversa L., Boschetti A., Chiarani S., Coppedè N., Nardi M., Pallaoro A., Siviero F., Toccoli T., Verucchi R., Institute for Photonics and Nanotechnology - Trento Division, IT

Organic materials (oligothiophenes, pentacene and phthalocyanines), cluster assembled nano-oxides and nanohybrid materials are produced by supersonic free jets in UHV (characterized by surface methods UPS, XPS, LEED, Auger). We demonstrate the role of precursors initial [...]

Plasma Manufacturing of Near-Net-Shape Large Scale Nanocomposite Structures – A Potential Bulk Nanofabrication Tool

Georgieva P., Viswanathan V., Hong S-J, Rea K., Seal S., University of Central Florida, AMPAC, US

In this presentation we report, for the first time, the successfully fabrication of a near-net shape bulk nanocomponent using plasma spray forming. In the research toward development of a component with retained nanostructure, enhanced oxidation [...]