Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 535 for “"Nanocomposites"”.
-
Polyethylene-montmorillonite nanocomposites
… This is a useful contribution to the field of nanocomposites research. It is known that the morphologies of polymers can affect their mechanical properties and electrical treeing behaviour, and so it is possible that controlled crystallisation could provide a route toward designer materials …
-
PMMA Clay Nanocomposites
Polymer clay nanocomposites (PCN) of poly(methyl methacrylate) (PMMA) and clay, were synthesised in-situ using a free radical suspension polymerisation technique. The weight fraction of clay in the PCN was systematically varied in order to understand the effect of clay on the physical properties of …
-
Nanocomposites as thermoelectric materials
… in the quest for high ZT materials. These nanocomposites are essentially nano-grained bulk materials that are synthesized by hot pressing nanoparticles into a bulk form. The interfaces inside a nanocomposite strongly scatter phonons but only slightly affect the charge carrier transport. …
-
Bio-inspired Cellulose Nanocomposites
Natural composites like wood are scale-integrated structures that range from molecular to the macroscopic scale. Inspired by this design, layer-by-layer (LbL) deposition technique was used to create lignocellulosic composites from isolated wood polymers namely cellulose and lignin, with a lamellar …
-
Preparation of Fully Miscible Nanocomposites
… solution, to prepare completely miscible polymer nanocomposites with a controllable distance between nanoparticles, and to induce and control aggregation into percolation networks in polymeric matrices for a variety of different nanoparticle/polymer combinations. Not only end-functionalized …
-
Polyamide-imide and Montmorillonite Nanocomposites
… PAI respectively. Micro-hardness testing of PAI nanocomposites was also performed. A concentration dependent state of dispersion was obtained. The glass transition (Tg), degradation and mechanical properties were found to correlate to the state of dispersion.
-
Microplasma-assisted synthesis of nanocomposites
… with materials from other families may lead to nanocomposites with enhanced properties and unique multi-functionalities suitable for a wide range of applications. In this work, direct current atmospheric pressure microplasma (or microplasma) has been deployed for the synthesis of functional gold …
-
Ignition mechanism in nanocomposites thermites
Nanocomposite thermites (n-thermites) have been actively investigated for a wide range of potential applications including propellants, explosives, and pyrotechnics. There have been several recent efforts aimed at understanding ignition mechanisms of nanocomposite reactive materials. Although …
-
Biobased And Biodegradable Polymer Nanocomposites
… crosslinked biobased and biodegradable polymer nanocomposites were fabricated and characterized. The properties of these polymer nanocomposites, and their relating mechanisms and corresponding applications were studied and discussed in depth. Chapter 1 introduces the research background and …
-
Barium Titanate-Based Magnetoelectric Nanocomposites
… to multifunctional applications; for example, nanocomposites can be fabricated with ferrite or metal phase with BTO. In this study, I synthesized various BTO-ferrites, ranging from nanoparticles, nanowires to thin films. BTO-ferrite coaxial nanotubes, BTO-ferrite self-assemble thin films, and …
-
SYNTHESIS OF NANOCOMPOSITES BY LASER ABLATION
Immunoglobulin E (IgE)-conjugated gold nanoparticles were produced via in situ conjugation of gold nanoparticles with immunoglobulin E by laser ablation of Au in a liquid solution. The colloidal stability and the size distribution of the resulting bio-nanoconjugates were examined with UV-Visible …
-
Polymer-organoclay nanocomposites by melt processing
Polymer-layered silicate nanocomposites based on a variety of polymer matrices and several organoclays were prepared by melt processing. A detailed characterization of the thermal degradation of several commercial and experimental organoclays often used to form polymer nanocomposites was reported. …
-
Synthesis and characterization of polymer nanocomposites
Polymer nanocomposites were produced by solution mixing of a commercial flexible acrylic polymer paint, with nanofillers of different size, shape, aspect ratio and purity such as hydrotalcite (HT), sodium montmorillonite (MMT), single wall carbon nanotubes (SWNT) and fullerenes (FUL), at 5 and 10 …
-
Titania-based nanocomposites for solar photocatalysis
This thesis explores several titania-based composites for photocatalytic water treatment and hydrogen evolution. For water treatment, TiO$_2$-C core-shell composites were prepared through controlled hydrolysis of titanium alkoxides followed by calcination in a non-oxygenating atmosphere. A total of …
-
Templated Multiferroic Nanocomposites by Ion-Lithography
Vertical aligned nanocomposites (VAN), formed by phase separation of two different materials, have been a novel platform to study heteroepitaxy. The perovskite-spinel system is one of the most popular VAN structures to study multiferroic coupling. For example, ferroelectric BiFeO3 (BFO) and …
-
Templated self-assembly of multiferroic nanocomposites
… this thesis, we focus on self-assembled oxide nanocomposites, which elegantly organize into vertical nanostructures via spontaneous phase-separation, naturally forming numerous such heterointerfaces. These provide a rich playground for studying interfacial effects, which could be used in future …
-
Design, Processing, and Characterization of Nanocomposites
… industrial-scale processing of these cellulose nanocomposites. To overcome these challenges, various industrially viable pre-mixing techniques, such as planetary ball milling, roller blade mixing, and master batching, are developed herein to fabricate these materials for melt processing while …
-
Novel Rubber Nanocomposites with Adaptable Mechanical Properties
… synthesis and characterization of new elastomer nanocomposites by hydrogen bonding interaction between reinforcing agents and the rubber matrix. On one hand it was expected that the filler agglomeration is reduced, and on the other hand this specific interaction further enhances the mechanical …
-
Concurrently coupled multiscale modeling of polymer nanocomposites
Embedded statistical coupling method (ESCM) was originally developed to provide computational efficiency, to decrease coupling complexities, and to avoid the need to discretize the continuum model to atomic scale resolution in concurrent multiscale modeling. ESCM scheme is relatively easy to …
-
Studies on semiconductor nanoparticles and polymer nanocomposites
… nanoparticles and semiconductor-polymer nanocomposites. The strategy for the synthesis of nanoparticles involves the use of various single-source precursors, which are thermolysed in a coordinating solvent, tri-w-octylphosphine oxide (TOPO). In the present study the focus has been mainly …
Page 1 of 27