Papers – Page 60 – TechConnect Briefs

Retarded Growth of Nano-sized Carbide Particles in Liquid Metals at 1500°C

Kim J., Kim J., Seo M., Kim J., Kang S., Seoul National Univ., KR

The nanocrystalline solid-solution carbide powders were prepared by carbo-thermal reduction after high-energy planetary milling of proper oxide mixture. Then, particle growth behaviours of nanocrystalline transitional metal carbides such as (W,V)C and (Ti,W,M1,M2)(CN) were investigated and [...]

Preparation and Characterization of Antibacterial TiO2/Poly[acrylamide-co-(acrylic acid)] Composite Hydrogel

Boonpavanitchakul K., Yiamsawas D., Kangwansupamonkon W., National Nanotechnology Center, National Science and Technology Development Agency, TH

A photocatalytically antibacterial TiO2/poly[acrylamide-co-(acrylic acid)] composite hydrogel from acrylamide (AAm) and acrylic acid (AAc) comonomers was prepared by free-radical aqueous polymerization using N,N’-methylenebisacrylamide (N-MBA) as a crosslinker, ammonium persulfate (APS) as an initiator, and Degussa [...]

Control of Pore Size in Nanoporous Ultralow Dielectrics

Kang I-Y, Song S.H., Rhee H-W, Sogang University, KR

As feature size and metal-to-metal space become smaller, ultralow dielectric materials are required to reduce signal delay and cross talk of interconnect. One of the most promising approach to reduce these problems is the introduction [...]

Influence of Carbon Nanoparticles on Thermogravimetric Properties of Epoxy Nanocomposites

Zois H., Kanapitsas A., Delides C.G., Technological Educational Institute Of Lamia, GR

In this work polymer nanocomposite systems based on epoxy resin (ER), reinforced with carbon black (CB) or amine-modified multi-walled carbon nanotubes (MWCNTs) were studied. Thermogravimetric/Differential Thermal Analysis (TGA/DTA) and Dynamic Mechanical Analysis (DMA) techniques were [...]

Thermal decomposition behavior of clay-phenolic nanocomposite prepared by in situ polymerization

Periadurai T., Vijayakumar C.T., Balasubramanian M., Indian Institute of Technology Madras, IN

In the present study, a clay-phenolic nanocomposite with 5 wt. % clay was synthesized through in-situ polymerization. X-ray diffraction and transmission electron microscopic studies indicate the formation of nanocomposites. Thermal stability of the phenolic resin [...]

Degradable elastomer composites containing layered silicate

Lipinska M., Zaborski M., Technical University of Lodz, PL

Polymers with an increased degree of degradability can be obtained through the addition of natural biodegradable supplements to the synthetic polymer. The aim of our study was to obtain an elastomeric composites determined time of [...]

Synthesis and ac conductivity studies of PEO+LiClO4+ La2O3 + MoO3 nanocomposite polymer solid electrolyte

Ramesh Kumar P., Venkateswarlu M., Satyanarayana N., Pondicherry University, IN

Polymer solid electrolytes are getting important for various electrochemical device applications, due to their high ionic conductivity, high mechanical and thermal stability. In the PEO polymer solid electrolyte, the transport of Li+ cations are coupled [...]

Surface modification of SiO2 micro spheres by NiFe2O4 nanoparticles

Prakash I., Nallamuthu N., Muralidharan P., Venkateswarlu M., Satyanarayana N., Pondicherry University, IN

NiFe2O4 nanocrystals are important magnetic materials because of their numerous applications in various fields like recording media, ferrofluids, magneto optics, spintronics, microwave devices, etc. Recently, ferrites are also used as gas and humidity sensor materials [...]

New Evidence Towards the Release of Airborne Carbon Nanotubes when Burning Nanocomposite Polymers

Fleury D., R’Mili B., Janes A., Vignes A., Bomfim J.A.S., Sinesi S., Bouillard J.X., INERIS, FR

The combustion of a CNT-filled nanocomposite polymer have been studied thanks to the use of differential thermal analysis coupled to measurement devices (sampling and particle concentration monitoring) to evaluate the potential release of nano-objects in [...]

New Fluorescent Hybrid Materials Comprising Quantum Dots, Organic Fluorophores and Natural Fibre Substrates

Zeller A.J., Johnston J.H., Victoria University of Wellington, NZ

The nanotechnology research presented here deals with the development and characterisation of new fluorescent hybrid materials comprising quantum dots and organic fluorophores respectively with wool and paper fibres that exhibit tuneable optical fluorescence and electronic [...]