nanocomposites – Page 3 – TechConnect Briefs

Block Copolymer Nanocomposites With Mono- And Bioriented Structures

de Sousa Jr. R.R., Amurin L.G., Demarquette N.R., Carastan D.J., Federal University of ABC - UFABC, BR

Block copolymer nanocomposites are materials with interesting structures and properties. The control of their morphology can be obtained during processing, and anisotropic structures may be oriented in one or two directions, affecting both the copolymer [...]

Using Magnetic Impact Coating Technique to Prepare Carbon Nanotube-Reinforced Polymer Nanocomposites

Narh K.A., New Jersey Institute of Technology, US

The combination of high aspect ratio, small size, very low density, and more importantly, excellent physical properties, such as extremely high mechanical strength and stiffness, high electrical and thermal conductivity, make carbon nanotubes (CNTs) perfect [...]

Scale-up of Novel Gold Nanoparticle-Wool Fiber Composites: A Commercialisation Success Story

Nilsson T.W., Johnston J.H., Victoria University of Wellington and MacDiarmid Institute of Advanced Materials and Nanotechnology, NZ

The development of novel nanocomposites of metal nanoparticles and natural fibers has allowed the engineering of flexible materials with the desirable properties of metal nanoparticles for numerous applications. One class of novel nanocomposites uses gold [...]

Ethylene Vinyl Acetate – Cloisite Nanocomposite Membranes and their Gas Separation Behavior

Ramadan A.R., Esawi A.M.K., Abdel-Hafiz A., Charmette C., Ayral A., The American University in Cairo, EG

The current work aims at understanding the correlation between EVA-montmorillonite clay nanocomposite membrane morphology and gas permeation properties. 5wt% of Cloisite-20A and 30B organoclays were added to EVA having 18wt% vinyl acetate. Nanocomposite membranes were [...]

Probing Critical Particle to Polymer Size Ratios for Non-Einstein Behavior in Polymer Nanocomposites

Schmidt R.G., Gordon G.V., Swier S., Cosgrove T., Dow Corning Corporation, US

Enhanced studies of polymer nanocomposites(PNCs)has led to multiple discoveries of PNC's that exhibit viscosity behavior counter to the classical behavior for filled systems originally defined by Einstein(1). Opposed to the viscosity increase typically observed for [...]

Frequency-Dependent Dielectric Properties Optimization of Polymer-Based-BT Nanocomposites for High Energy Density Applications

Hossain M.E., Liu S., Li J., Liu S., O’Brien S., The City College of New York of CUNY, US

Nanodielectric materials become one of the new materials to play a sole role in sustainable and clean energy production, energy transportation, energy storage, and end usage in terms of energy storage capabilities due to the [...]

Analysis of Factors Associated with the Releasability of Carbon Nanotubes (CNTs) from Materials Containing Nanocomposites

Kovochich M., Avanasi R., Madl A.K., ChemRisk, US

Carbon nanotubes (CNTs)in composites are currently being used in applications ranging from basic consumer goods to critical national defense technologies; however, concerns have been raised regarding the potential for exposure and health risk CNTs due [...]

Bacterial Cellulose Nanocomposites Developed by in-situ Fermentation

Osorio M., Restrepo D., Castro C., Montoya U., Zuluaga R., Gañán P., Universidad Pontificia Bolivariana, CO

Some bacteria such as Gluconacetobacter synthesize cellulose nanofibrills (BC) through the polymerization of glucose and subsequent extrusion outside the cell. In static conditions, the bacteria produce a three-dimensional network, a type of pellicule, which can [...]

Microcharacterization of Creep Behavior of Carbon Nanofiber Reinforced HDPE Nanocomposites using a Depth Sensing Method

Xu S., Liu T., Tangpong X.W., Akhatov I., Zhong W-H., North Dakota State University, US

Depth-sensing indentation at micro- and nano-scale levels is a useful tool for material characterization due to its simplicity. There are many well-established methods for determining local mechanical properties including elastic modulus, hardness, and fracture toughness [...]

Frequency-Dependent Dielectric Properties Optimization of Polymer-Based-BT Nanocomposites for High Energy Density Applications

Hossain M.E., Liu S., Li J., Liu S., O’Brien S., The City College of New York of CUNY, US

Nanodielectric materials become one of the new materials to play a sole role in sustainable and clean energy production, energy transportation, energy storage, and end usage in terms of energy storage capabilities due to the [...]