Composite Materials – Page 21 – TechConnect Briefs

ROMP of norbornene catalysed by Grubbs functionalized carbon nanotubes

Longo P., Costabile C., Grisi F., Siniscalchi G., Ciambelli P., Sarno M., Leone C., Sannino D., University of Salerno, IT

Recently, carbon nanotubes have attracted attention for their unique structural and electronic properties, which position them as one of the leading materials for a wide array of potential nanotechnological applications. The synthesis of homogeneuos polymeric [...]

Determination of Elastic and Thermal Properties of Nanocomposites by Fiber Embedment in Finite Elements

Spanos P.D., Esteva M., Akin J.E., Rice University, US

In this paper the impact of entangled and non-straight fibers in the determination of the effective elastic and thermal properties of polymer nanocomposite (PNC) is addressed. Most of the models in recent studies assume nanotubes [...]

Extraction of Bulk Material Properties from Phonon Dispersion Spectra

Kumar N., Pochiraju K., Stevens Institute of Technology, US

Experimental characterization of mechanical behavior of nanostructures can be cumbersome and expensive. Design of nano-structured materials with properties tailored to meet macro-scale requirements invariably requires model-based understanding of the structure-to -property relationships. In this effort, [...]

Obtaining Fracture Properties by Virtual Testing and Molecular Dynamics Techniques

Farahmand B., Odegard G.M., TASS INC, US

Fracture critical parts of aerospace structures must have adequate life to withstand the cyclic load environment throughout their service usage. The life analysis of these parts requires having fracture mechanics allowables that are obtainable through [...]

Multi-Scale Modeling of Polymer Nanocomposites

Adam L., Delaere K., Gérard J.-S., Assaker R., Doghri I., Kaszacs M., eXstream engineering S.A., BE

Due to the small size of nano-inclusions, their surface becomes an important factor determining the composite properties. For “microcomposites” (with inclusions larger than one micron) it is often sufficient to consider the phases’ bulk properties, [...]

Multifunctional Electrodes Based on MWNTs Sheets and Yarns

Carretero-González J., dela Cruz M.E., Fang S., Ferraris J.P., Baughman R.H., The University of Texas at Dallas, US

Solid-state fabricated carbon MWNTs sheets and yarns exhibit very high electrochemically accessible surface area, which combine with their high electronic conductivity and useful mechanical properties to make these materials attractive candidates for supercapacitor and artificial [...]

Novel Carbon Nanotube-Biomedical Polymer Composite Platforms for Bioelectrochemical Applications

Ounnunkad S., Minett A.I., Fleming B.D., Bond A.M., Wallace G.G., University of Wollongong, AU

The construction and the electrochemical characteristics of novel freestanding biomedical polymer-single walled carbon nanotube (SWCNT) nanocomposite electrode, formed via an intercalation process have been described. The intercalating polymer reinforces the Buckypaper to provide sufficient strength [...]

Novel Metal Nanowire/Polymer Nanocomposites for Electromagnetic Interference Shielding

Gelves G.A., Al-Saleh M.H., Sundararaj U., University of Alberta, CA

Novel Polymer Nanocomposites containing high aspect ratio metal nanowires with outstanding potential for Electromagnetic Interference applications will be introduced in this presentation. The development and characterization of these novel materials will be presented. Processing-structure-property relationships [...]

Overview of Polymer Nanocomposites as Dielectrics and Electrical Insulation Materials for Large High Voltage Rotating Machines

Han Z., Garrett R., Siemens Energy, US

This is an overview paper to talk about the potential application of Polymer Nanocomposites as Dielectrics and Electrical Insulation Materials for Large High Voltage Rotating Machines. The progress, advantages, limitations, and current problems of using [...]

Synthesis and Characterization of Alginate-Based Magnetic Nanocomposite

Luna-Pineda T., Román-Velázquez F., University Of Puerto Rico at Mayaguez, PR

Our work addressed the development of a multi-purpose sorbent consisting of magnetite (Fe304) nanoparticles functionalized by dimercaptosuccnic acid (DMSA) and dispersed into porous calcium alginate beads (CAB). The resultant magnetic nanocomposite (MO-CAB) can be considered [...]