Composite Materials – Page 28 – TechConnect Briefs

High Strength Metal-Carbon Nanotube Composites

Goyal A., Wiegand D.A., Owens F.J., Iqbal Z., New Jersey Institute of Technology, US

Carbon nanotubes have been extensively investigated for developing polymer matrix nanocomposites and a number of such nanocomposites are already being used in various applications [1, 2]. Metallic composites, particularly those of aluminum, containing carbon nanotubes [...]

Fabrication of Nano-engineered Composites Reinforced with Carbon Nanotubes (CNTs)

Wicks S.S., Yamamoto N., Guzman de Villoria R., Ishiguro K., Cebeci H., Wardle B.L., Massachusetts Institute of Technology, US

Composites, consisting of aligned advanced fibers embedded in epoxy, are common structural materials used in the aerospace industry for their superior strength to weight ratio and their versatility in tailoring specific mechanical properties, among other [...]

Adapting carbon nanotubes for fine composite structures

Shaffer M., Verdejo R., Tran M., Menner A., Bismarck A., Imperial College London, UK

Although encouraging results have been obtained for nanotube-filled polymers, significant improvements over conventional fillers have proved elusive. A critical factor is the reliance on CVD-grown material, which is available in large quantity at reasonable purity, [...]

Halloysite Nanotubes in Polymers

Daly R.C., Fleischer C.A., Wagner A.L., Duffy M., NaturalNano, Inc., US

Halloysite Nanotubes (HNT TM) provide a new avenue for the preparation of nanocomposites. These unique tubes can be dispersed by normal extrusion processes in a variety of polymer melts to produce nanocomposites with unusual physical [...]

Development of nanocomposites with carbon nanotubes in a thermoplastic elastomer matrix

Broza G., Roslaniec Z., Schulte K., Technische Universitaet Hamburg, TUHH, DE

Thermoplastic elastomers (TPEs) have the potential for application as engineering materials because of their novel properties and ease of processing. We have developed a polycondensation process, which allows the manufacturing of polybutylene terephthalate/polyoxytetramethylene (PBT/PTMO) block [...]

Nano Materials & Composites

Synthesis and Magnetic Properties of Polyaniline-Based Magnetic Nanocomposites for EMI Applications

Renteria B., Singhal R., Calderon E., Tomar M.S., Banerjee J., University of Puerto Rico, PR

we have synthesized composite of polyaniline (PANI) with manganese-zinc-ferrite (MnXZn1-XFe2O4) nanoparticles. PANI was synthesized by polymerization of aniline in the presence of ammonium peroxydisulfate and HCl. Electrical conductivity of bare PANI pellets averaged 0.8044 (Ω·m)-1. [...]

Coupling of CdSe/ZnS quantum dots: among themselves and with matrices

Liu K., Tsu R., University of North Carolina at Charlotte, US

We investigate the photoluminescence (PL) properties of CdSe/ZnS QDs deposited on Si, fused silica, Au film, and silica nanospheres. The red shifts of the PL peak were observed with increasing density of QDs on various [...]

Processing and Characterization of Epon 862 reinforced with functionalized MWCNT’s

Theodore M., Hosur M.V., Thomas J., Jeelani S., Tusekgee University, US

In the current research work, functionalization of pristine MWCNTs was performed by oxidation in acid solution (MWCNT-COOH), direct-fluorination (MWCNT-F), and amino-functionalization (MWCNT-NH2). An epoxy-nanocomposite material was developed through the use of functionalized Multi-wall Carbon Nanotubes [...]

The Mechanical Fabrication of Nanocomposites and Engineered Particles

Huang C-C, Hosokawa Micron Powder Systems, US

The development of nanotechnology is closely related to the new economy full with high tech products towards 21st century. As a new material, the nanoparticle has certainly caught the imaginations of researchers around the world. [...]