Papers:
Characterization of airborne particles released by the combustion of Nanocomposites
Motzkus C., Chivas-Joly C., Guillaume E., Ducourtieux S., Saragoza L., Lesenechal D., Macé T., Laboratoire National de Metrologie et d’Essais, FR
Day after day, new applications using nanoparticles appear in industry, increasing the probability to find these particles in workplaces as well as in ambient air. As epidemiological studies have shown an association between increased particulate [...]
Release-ability of nano fillers from different nanomaterials
The nanoparticles are finding new industrial applications every day in fields as diverse as electronics, biomedicine, pharmaceutics, cosmetology, chemical catalysis, new materials, and others. We are about to witness the advent of a new era [...]
Mechanical Reinforcement of Epoxy Resins using Magnetic Aligned Halloysite
Mendoza-Bello S., Barrientos-Ramirez S., Montes de Oca G., Flores-Santos L., Macro-M, S.A. de C.V., MX
In this work we report the synthesis of magnetite nanoparticles using halloysite as template. Halloysite is treated using a two steps activation method (Sn/Pd) and in a third step ferrite is formed using a coprecipitation [...]
Polymer Nanocomposites from Functionalized Polyolefins
Polymer-layered silicate nanocomposites formed from the organically modified clay mineral montmorillonite and related materials have attracted a great deal of technological and scientific interest in the past decade. These composites offer the promise of greatly [...]
Enhancing mechanical properties of epoxy resin while reducing viscosity using “liquid nano-reinforcement”
Graphitic carbon nanofibers (GNFs) were first made into a “liquid nano-reinforcement” (LNR) that is composed of reactive nanofibers (r-GNFs) and an epoxy diluent through chemically reacting the functionalized GNFs with the diluents. Due to the [...]
Characterization of palladium nanoparticles embedded in a wool substrate
In the present paper we report the characterization of nanopalladium-wool fibre composites. Professor James Johnston and his research group at Victoria University of Wellington have developed a new methodology to reduce metal salts of palladium [...]
Fabrication and Testing of Three-Dimensionally Reinforced Carbon Nanotube Based Laminated Nanocomposites
Carbon nanotubes (CNTs) can be used for the reinforcement of polymers to create novel nanotube based nanocomposites with tunable properties and multifunctional behaviors. Chemical vapor deposition technique is employed to grow vertically aligned high density [...]
Magnetic assisted self-assembly
In this work, we introduce a new technique to produce anisotropic porous materials called magnetic assisted self-assembly. This method takes advantage of the alignment in the presence of a magnetic field of non-magnetic colloidal nanoparticles, [...]
Characterization of Nanoparticle Release from Polymer Nanocomposites Due to Fire
Studies are being conducted to understand the potential hazards associated with burning materials containing carbon nanotubes (CNTs) and nanofibers (CNFs) either in the process of incineration or in accidental fires. Some of the important questions [...]
Rapid one-step chemical synthesis of polyaniline-manganese ferrite nanocomposites without external initiator and mechanical agitation
Chimamkpam E.F.C., Schweizer T., Schilling A., Ferreira J.M.F., Centre for Research in Ceramics and Composite Materials, PT
We describe a rapid one-step, room temperature method to chemically synthesize bulk quantities of nanocomposites comprising specifically of manganese ferrite (MnFe2O4) and polyaniline (conductive form). Typically a chemical agent, for example ammonium peroxydisulfate, is used [...]
Synthesis of a CNT Nano-Coating on Carbon Fibers: its Role on Strength, Toughness & Damage Tolerance of Polymer Matrix Composites
Carbon in its form as nanotubes is an excellent candidate material for applications as reinforcement in advanced composites. The outstanding mechanical, electrical and thermal properties properties of these nano constituents can be transferred to macro-level [...]
New Fluorescent Hybrid Materials Comprising Quantum Dots, Organic Fluorophores and Natural Fibre Substrates
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 [...]
New Evidence Towards the Release of Airborne Carbon Nanotubes when Burning Nanocomposite Polymers
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 [...]
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 [...]
Synthesis and ac conductivity studies of PEO+LiClO4+ La2O3 + MoO3 nanocomposite polymer solid electrolyte
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 [...]
Degradable elastomer composites containing layered silicate
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 [...]
Thermal decomposition behavior of clay-phenolic nanocomposite prepared by in situ polymerization
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 [...]
Influence of Carbon Nanoparticles on Thermogravimetric Properties of Epoxy Nanocomposites
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 [...]
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 [...]
Retarded Growth of Nano-sized Carbide Particles in Liquid Metals at 1500°C
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 [...]
Computer Simulation of Graphene-Metal Composite Induced by Radiation
In this paper we have submitted some results of computer simulation and calculations based on the density functional theory of the energy and structural characteristics of some possible kinds of stable complex structural defects in [...]
Influence of Silica Nanoparticles on the Thermal Transitions and Structure of PHBA-PET Nanocomposites
Composite films were produced by direct melt-blending of the polymer with up to 1.5 vol% loadings in a Thermo-Haake MiniLab2 twin-screw extruder. Thermal transitions were determined by differential scanning calorimetry and thermogravimetric analysis. Structure and [...]
The Effect of Various Binder Additions on the Magnetic Properties of Soft Magnetic P/M Cores
Kim H.-J., Kim K.S., Kim S.I., Kim H.-J., Kim K.S., Kim S.I., Song J-J, Yoon S.C., Kim H.-J., Kim K.S., Kim S.I., Inje University, KR
Recently, there has been a growing demand for soft magnetic materials used in miniaturized electromagnetic devices with high performance, which can be used at a high frequency range. These applications include Switch Moded Power Supply, [...]
Journal: TechConnect Briefs
Volume: 1, Nanotechnology 2011: Advanced Materials, CNTs, Particles, Films and Composites
Published: June 13, 2011
Industry sector: Advanced Materials & Manufacturing
Topics: Advanced Materials for Engineering Applications, Composite Materials
ISBN: 978-1-4398-7142-3