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Showing 1 to 20 of 59 for “"MWCNT"”.

  1. Chemically and Photochemically Crosslinked Networks and Acid-Functionalized Mwcnt Composites

    Nebipasagil, AliVirginia Tech2011

    … of C70 P Baytubes multiwalled carbon nanotubes (MWCNT) generated acid-functionalized nanotubes (MWCNT-COOH). Suspension of MWCNT-COOH in organic solvents (chloroform, toluene, THF, DMF and 2-propanol) were prepared. DLS indicated average particle diameters of MWCNT-COOH in DMF and in 2-propanol …

    vt Repository record

  2. Spray coated bentonite/MWCNT composite enzymatic biosensor for uric acid detection

    Park, SeohyunSchulich School of Engineering2026

    … (BT) and multi-walled carbon nanotubes (MWCNTs) fabricated via spray coating. The composite utilizes the high conductivity and surface area of MWCNTs along with the ion-exchange capacity and antifouling properties of BT to improve both electron transfer and long-term stability. Uricase …

    calgary Repository record

  3. Effect of Processing Techniques and Blend Compositions on Electrical Properties of Immiscible Polymer Blend/MWCNT Nanocomposites

    Sultana, S. M. NourinSchulich School of Engineering2019

    … to mix 3 wt % multi-walled carbon nanotube (MWCNT) in five blend compositions of polystyrene (PS)/poly (vinylidene fluoride) (PVDF) blend system. In chapter 5, six techniques are mentioned to mix 2.7 vol % MWCNT in three compositions of PS/poly (methyl methacrylate) (PMMA) blend. Mixing …

    calgary Repository record

  4. Scalable Electrochemical Surface Enhanced Raman Spectroscopy (EC-SERS) for bio-chemical analysis

    Xiao, ChuanVirginia Tech2021

    … composed of multi-walled carbon nanotubes (MWCNTs) doped polymeric nanocomposites, which are manufactured over the wafer-scale on both rigid and flexible substrates by direct nanoimprinting of perfluoropolyether nanowell-array templates into uncured MWCNT/polymer mixtures. By controlling the …

    vt Repository record

  5. Tailoring Intermolecular Interactions for High-Performance Nanocomposites

    Inglefield, David Lott Jr.Virginia Tech2014

    Acid oxidation of multi-walled carbon nanotubes (MWCNTs) introduced carboxylic acid sites onto the MWCNT surface, which permitted further functionalization. Derivatization of carboxylic acid sites yielded amide-amine and amide-urea functionalized MWCNTs from oxidized precursors. Conventional MWCNT …

    vt Repository record

  6. Mechanical and electrical properties of carbon nanotubes surface-stamped on polydimethylsiloxane for microvalve actuation

    Salzbrenner, Jeffrey

    … of a thin layer of multiwalled carbon nanotubes (MWCNT) into the surface of polydimethylsiloxane (PDMS) as a method of creating an electrically actuated, flexible microfluidic valve. Samples of PDMS loaded with various surface loadings of MWCNT on the surface are prepared and tested using a …

    unm Repository record

  7. Carbon nanotube surfaces for low force contact application

    Yunus, Pg Hj Md Esa Al-Islam bin Pg Hj MdUniversity of Southampton2009

    … of gold/multi-walled carbon nanotube (Au/MWCNT) composites: 1) a modified nano-indentation; and 2) a PZT actuator test rig. These apparatuses were used to mimic force-displacement and contact behaviour of the MEMS relay?s contact at a maximum load of 1 mN with dry-circuit and hot-switched …

    soton Repository record

  8. An Electrochemical Investigation into the Corrosion Protection Properties of Coatings for the Active Metal Copper

    Carragher, UrsulaNational University of Ireland Maynooth2013

    … incorporation of multiwalled carbon nanotubes (MWCNT), and viologen films adsorbed at copper. The corrosion protective properties of these films were studied and compared to the uncoated copper substrate. They were assessed and studied using a combination of cyclic voltammetry, polarisation …

    maynooth Repository record

  9. Fabrication and Characterization of Carbon Nanocomposite Photopolymers via Projection Stereolithography

    Campaigne, Earl Andrew IIIVirginia Tech2014

    … concentrations of multi-walled carbon nanotubes (MWCNT) to the photopolymer may allow for the engineering of an objects tensile strength and electric conductivity. This research has two goals (i) the fabrication of three-dimensional structures using PSL and (ii) the material characterization of …

    vt Repository record

  10. Creation and Characterization of Several Polymer/Conductive Element Composite Scaffolds for Skeletal Muscle Tissue Engineering

    Fischer, Kristin MckeonVirginia Tech2012

    … (Au Nps), and multi-walled carbon nanotubes (MWCNT). Our project goal is to create a polymeric, conductive, and biocompatible scaffold for skeletal muscle regeneration. PANi and PDLA were mixed to form the following solutions 24% (83% PDLA/17% PANi), 24% (80% PDLA/20% PANi), 22% (75%PDLA/25% …

    vt Repository record

  11. Control of carbon nanotube stiffness via tunable fabrication process parameters that determine CNT geometry

    Cullinan, Michael A. (Michael Arthur)Massachusetts Institute of Technology2008

    … the geometry of multi-walled carbon nanotubes (MWCNTs). The results may be used to grow MWCNTs with desired stiffness properties. This is important to devices that rely on the compliance of MWCNTs in order to achieve specific performance requirements, e.g. deflection or stiffness. Examples of …

    mit Repository record

  12. Leveraging Carbon Based Nanoparticle Dispersions for Fracture Toughness Enhancement and Electro-mechanical Sensing in Multifunctional Composites

    Shirodkar, Nishant PrashantVirginia Tech2022

    … II investigate the SHM capabilities of dispersed MWCNTs in mock, inert, and active energetics. In these experimental investigations, the strain and damage sensing abilities of multi-walled carbon nanotube (MWCNT) networks embedded in the binder phase of polymer bonded energetics (PBEs) are …

    vt Repository record

  13. Structure and activity relationships of bimetallic catalysts for aqueous phase reforming and the water-gas shift reaction

    Sollberger, Fred Gerald

    … carbohydrates. In the first study Pt/MWCNT catalysts have been promoted by addition of transition metal promoters Cu, Ni, Co, Fe, Mn, Mo, W, and Re in Pt:M 1:1 atomic ratios to give up to 13 times higher glycerol reforming site time yield (STY) and 8 times higher water-gas shift (WGS) …

    purdue-thes Repository record

  14. Dry-transfer of chemical vapour deposited nanocarbon thin films

    Cole, Matthew ThomasUniversity of Cambridge2012

    … graphene and multi-walled carbon nanotubes (MWCNTs) as enabling technologies for flexible transparent conductors offering enhanced functionality. The technologies developed could be employed as thin film field emission sources, optical sensors and substrate-free wideband optical polarisers. …

    cambridge Repository record

  15. Optimisation of silicone-based dielectric elastomer transducers by means of block copolymers – synthesis and compounding

    A Razak, Aliff HisyamTechnical University Of Denmark2017

    … the use of a multi-walled carbon nanotube (MWCNT) in a PDMS-PEG matrix as a compliant electrode of dielectric elastomers. The conductive PDMS-PEG copolymer was incorporated with surface-treated MWCNT, in order to obtain highly conductive elastomer. The prepared sample with 4 parts per …

    uthm Repository record

  16. Experimental investigation of U-Pipe evacuated tube solar collector: thermal performance enhancement methodology

    O'Neil, Tyler J. E.University of Missouri--Kansas City2021

    … concentrations of multi-walled carbon nanotubes (MWCNT) are added. Additionally, to insure even distribution of MWCNT and consistent properties of the HTF, triethanolamine (TEA) is proposed to be incorporated as a dispersant. The samples were each tested in a Thermogravimetric Analyzer (TGA) and …

    umkc Repository record

  17. Többfalu karbon nanocsövek cito-és genotoxikológiai vizsgálata humán limbális sejteken fluoreszcens mikroszkóppal és time-lapse imaging videomikroszkópiás módszerekkel

    Tóth, Dominika Adelina2019

    A szakdolgozatomban az MWCNT egyik fajtájával, a sMWCNT-vel foglalkoztam.Sejt szinten végbemenő változások vizsgálata volt az elsődleges célom. Azt vizsgáltam, hogy milyen változásokat okoz sejtmaganyag szinten a szén nanocső, illetve ez hogyan befolyásolja a kromatin kondenzálódási …

    debrecen Repository record

  18. Piezoresistive UHMWPE WMCNT Sensors for Instrumented Total Knee Replacements

    Do, QuyenUNSW, Sydney2019

    … The addition of multi-walled carbon nanotubes (MWCNT) as electrically conducting fillers to the ultra-high molecular weight polyethylene (UHMWPE) transforms the electrically insulating UHMWPE to a nano-composite whose resistance changes with the applied stress. A steel mold and a two-stage …

    unsw Repository record

  19. Atomic structures of carbon nanomaterials studied by coherent electron diffraction

    Zhang, JiongUniversity of Illinois at Urbana-Champaign2011

    … below. In a multi-walled carbon nanotube (MWCNT), quantitative electron diffraction analysis reveals significant differences between the measured and the ideal tube diameter calculated based on the 1.421 Å carbon-carbon bond lengths. The results indicate that on average there are three …

    uiuc Repository record

  20. Preparation and properties of micro- and nanocomposites based on high density polyethylene

    Traina, MatteoUniversità degli studi di Trento2008

    … blacks (CBs) and multiwalled carbon nanotubes (MWCNTs). In the first part of this dissertation, the fracture behaviour of PE-CB composites was investigated via the Essential Work of Fracture (EWF) approach by producing composites with different CBs in order to investigate the effect of the …

    trento Repository record

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