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Dissertations / Theses on the topic 'Carbon nanotubes nanocomposite'

Author: Grafiati

Published: 11 March 2023

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1

PAMMI, SRI LAXMI. "CARBON NANOCOMPOSITE MATERIALS." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1069881274.

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2

Penu, Christian. "Nanocomposites à matrice polyamide 6 ou polystyrène et à renforts de nanotubes de carbone : du procédé de synthèse aux phénomènes de percolation." Thesis, Vandoeuvre-les-Nancy, INPL, 2008. http://www.theses.fr/2008INPL087N/document.

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L’incorporation de nanotubes de carbone dans une matrice polymère permet d’obtenir des matériaux nanocomposites avec des propriétés exceptionnelles. Toutefois, ces dernières dépendent de l’état de dispersion et distribution des nanotubes dans la matrice. Afin de conférer de meilleures propriétés, il est essentiel que le procédé de synthèse des nanocomposites permette une répartition contrôlée des nanotubes dans la matrice. Un procédé de polymérisation in situ, en présence de nanotubes de carbone, a été choisi. Ce dernier permet de contrôler la répartition des nanotubes dans la matrice grâce à

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3

Muñoz, Martín Jose María. "Advanced amperometric nanocomposite sensors based on carbon nanotubes and graphene: characterization, optimization, functionalization and applications." Doctoral thesis, Universitat Autònoma de Barcelona, 2015. http://hdl.handle.net/10803/311424.

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Dins de l’amplia gama de nanocompòsits, la incorporació de materials conductors de carboni nanoestructurats, entre els quals s’hi troben els nanotubs de carboni (NTCs) i el grafè, a dins d’una matriu polimèrica aïllant, és una forma molt atractiva de combinar les propietats mecàniques i elèctriques úniques del material de farciment amb els atributs dels plàstics. Concretament, els materials nanocompòsits basats en carboni han jugat un gran lideratge en el camp de l’electroquímica analítica, sobre tot en el desenvolupament de dispositius (bio)sensors, degut a les seves interessants avantatges r

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4

Johnson, Rolfe Bradley. "Crystallization effects of carbon nanotubes in polyamide 12." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34795.

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Multi-walled carbon nanotubes (MWNTs) are a nanofiller that has desirable multifunctional properties. They have been shown to offer improved mechanical, thermal, and electrical properties in composites. Research has been studying their incorporation into polymer composites. Polyamide 12 is a polyamide of interest that has been manufactured to have lower moisture absorption and higher ductility than other commercial polyamides such as 6 and 6,6 at room temperature. In these studies, MWNTs have been incorporated into polyamide 12 at different weight loadings and using MWNTs with differing ou

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5

Abu-Zahra, Esam. "High Strength E-Glass/CNF Fibers Nanocomposite." Cleveland State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=csu1198878550.

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6

Guo, Yan. "Surface functionalization of carbon nanotubes for nanocomposite and biomedical in vivoImaging." Cincinnati, Ohio : University of Cincinnati, 2007. http://rave.ohiolink.edu/etdc/view.cgi?acc_num=ucin1180118173.

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Thesis (M.S.)--University of Cincinnati, 2007.<br>Advisor: Dr. Donglu Shi. Title from electronic thesis title page (viewed July 17, 2009). Includes abstract. Keywords: Carbon nanotubes; plasma functionalization; alumina; nanocomposite; quantum dots; in vivo imaging. Includes bibliographical references.

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7

Zhao, Qi. "Characterization and Thermal Decomposition Behavior of Carbon Nanotubes and Nanocomposites." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1378113311.

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8

Campaigne, Earl Andrew III. "Fabrication and Characterization of Carbon Nanocomposite Photopolymers via Projection Stereolithography." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/50270.

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Projection Stereolithography (PSL) is an Additive Manufacturing process that digitally patterns light to selectively expose and layer photopolymer into three dimensional objects. Nanomaterials within the photopolymer are therefore embedded inside fabricated objects. Adding varying 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 nanocomposite photopo

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9

Semaan, Chantal. "Polymères nanostructurés à base de nanotubes de carbone." Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14187/document.

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Ce travail de thèse concerne l’étude de dispersions de nanotubes de carbone (NTC) dans une matrice polymère afin d’obtenir des matériaux nanocomposites avec des propriétés améliorées. Dans la première partie, nous nous sommes intéressés à l’enrobage des NTC par des copolymères à blocs amphiphiles afin de faciliter la dispersion en solution aqueuse. L’influence de la structure chimique, de la composition et de la masse molaire des copolymères sur les propriétés a été étudiée. Dans une deuxième partie, l’incorporation des NTC dans une matrice polymère a été développée. Des procédés par voie aque

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10

He, Peng. "Surface Modification and Mechanics of Interfaces in Polystyrene Nanocomposite Reinforced by Carbon Nanotubes." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1140462871.

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11

Al, Mafarage Ali M. "Processing and Properties of Multifunctional Two-Dimensional Nanocomposite Based on Single Wall Carbon Nanotubes." Wright State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=wright1556310855748631.

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12

Sarr, Mouhamadou Moustapha. "Étude, synthèse et élaboration de nanocharges biphasées, nanotubes de carbone/diatomées pour l’amélioration des propriétés physiques de nanocomposites à matrice polymère." Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0326/document.

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Cette thèse s’inscrit dans le cadre d’un projet GREENANONANO né d’un partenariat entre le Luxembourg Institute of Science and Technology (LIST), Goodyear et l’Université de Lorraine dans le but de relever un défi technologique concernant l’augmentation des performances des propriétés viscoélastiques de la gomme utilisée dans les pneumatiques. Cette gomme est un composite constitué d’un élastomère (caoutchouc naturel) renforcé par la silice et le noir de carbone. La dispersion de ces charges n’est pas optimale et tend à dégrader les propriétés mécaniques et électrostatiques et donc les performa

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13

Seifert, David Ryan. "Topology Optimization of Multifunctional Nanocomposite Structures." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/86195.

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This thesis presents the design of multifunctional structures through the optimal placement of nanomaterial additives. Varying the concentration of Carbon Nanotubes (CNTs) in a polymer matrix affects its local effective properties, including mechanical stiffness, electrical conductivity, and piezoresistivity. These local properties in turn drive global multifunctional performance objectives. A topology optimization algorithm determines the optimal distribution of CNTs within an epoxy matrix in an effort to design a set of structures that are capable of performing some combination of mechanical

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14

Rafiee, Mohammad. "Modeling, Processing, Fabrication and Characterization of Carbon Nanomaterials-Reinforced Polymer Composites." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/38126.

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Fiber and matrix-dominant properties of fiber-reinforced polymer composites are important in many advanced technological fields, such as aviation, aerospace, transportation, energy industry, etc. Still, pre-mixing the polymer matrix with nanoparticles may enhance the through-thickness or matrix-dominant properties, and surface treatment of fiber reinforcements with nanoparticles, on the other hand, may improve the in-plane or fiber-dominated properties of laminated composites, as well as interfacial adhesion. A novel manufacturing method that combines a spraying process with nanoparticle/epoxy

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15

Guo, Yan. "Surface Functionalization of Carbon Nanotubes for Nanocomposite and Biomedical In Vivo Imaging." University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1180118173.

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16

Unnikrishnan, Vinu Unnithan. "Multiscale analysis of nanocomposite and nanofibrous structures." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-1469.

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17

Ezat, Gulstan S. "The influence of multi-walled carbon nanotubes on the properties of polypropylene nanocomposite : the enhancement of dispersion and alignment of multiwalled carbon nanotube in polypropylene nanocomposite and its effect on the mechanical, thermal, rheological and electrical properties." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/5703.

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Carbon nanotubes are known as ideal fillers for polymer systems; the main advantage of carbon nanotubes over other nano-reinforcing particles is the combination of superior strength and stiffness with large aspect ratio. Carbon nanotubes may improve the mechanical, electrical and thermal properties of polymers, but to realise their potential in polymer systems uniform dispersion, strong interfacial adhesion and alignment of nanotubes within the polymer matrix are necessary. These properties are not easy to achieve and they are key challenges in producing CNT/Polymer system. This research was c

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18

Stubbs, Ian. "Poly(styrene)-b-Poly(dimethylsiloxane)-b- Poly(styrene)/Single Walled Carbon Nanotube Nanocomposites. Synthesis of Triblock Copolymer and Nanocomposite Preparation." DigitalCommons@Robert W. Woodruff Library, Atlanta University Center, 2016. http://digitalcommons.auctr.edu/cauetds/49.

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Molecular weights of 2,000, 6,000 and 10,000 of silane functionalized atactic polystyrene (aPS) and α,ω-divinyl functionalized polydimethylsiloxane (PDMS) were prepared via living anionic polymerization and bulk anionic ring opening polymerization respectively. Functionalization of the homopolymers was confirmed by FT-IR and 1H-NMR spectroscopy and their molecular weights were determined via 1H-NMR end group analysis. A hydrosilylation reaction between the functionalized homopolymers of different molecular weights produced nine polystyrene-block-polydimethylsiloxane-block-polystyrene (aPS-b-PD

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19

Turco, Antonio. "Use of carbon nanotubes for novel approaches towards spinal network repairing." Doctoral thesis, Università degli studi di Trieste, 2013. http://hdl.handle.net/10077/8663.

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2011/2012<br>Nanotechnology underwent a very rapid development in the last decades, thanks to the invention of different techniques that allow reaching the nanoscale. The great interest in this area arises from the variety of possible applications in different fields, such as electronics, where the miniaturization of components is a key factor, but also medicine. The creation of smart systems able to carry out a specific task in the body in a controlled way, either in diagnosis or therapy or tissue engineering, is the ultimate goal of a newborn area of research, called nanomedicine. In

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20

Jomaa, Mohamed Hedi. "Elaboration, characterization and modeling of electroactive materials based on polyurethanes and grafted carbon nanotubes." Thesis, Lyon, INSA, 2015. http://www.theses.fr/2015ISAL0053/document.

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Le besoin de sources d’énergie autonomes connaît un regain d’intérêt de plus en plus important avec la multiplication des équipements portables et le développement des réseaux de capteurs. Au-delà de l’utilisation traditionnelle des batteries, il y a un intérêt évident à générer l’énergie électrique nécessaire au cœur du système lui-même en utilisant le gisement environnemental disponible : gradients thermiques, vibrations mécaniques….Ceci est également rendu possible par la réduction importante de la consommation des composants électroniques observés ces vingt dernières années. Parmi les disp

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21

WEGRZYN, MARCIN. "Nanocomposites of Multiphase Polymer Blend Reinforced with Carbon Nanotubes: Processing and Characterization." Doctoral thesis, Universitat Politècnica de València, 2014. http://hdl.handle.net/10251/36869.

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This thesis presents the study of nanocomposites based on immiscible polymer blend of polycarbonate and acrylonitrile-butadiene-styrene (PC/ABS) filled with multi-walled carbon nanotubes (MWCNT). The aim is to achieve an improvement of mechanical properties and electrical conductivity of the nanocomposites. In an initial stage, a twin-screw extruder was used to obtain nanocomposites by melt compounding. Three methods of carbon nanotubes addition were studied: direct addition, dilution from a masterbatch and feeding of MWCNT suspension in ethanol. For each method, the influence

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22

Twomey, John Ryan. "Characterization of nanocomposite scaffolds composed of collagen and functionalized carbon nanotubes for tissue engineering applications." Connect to online resource, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1447691.

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23

Baddour, Carole. "Direct growth of carbon nanotubes on metal surfaces without an external catalyst and nanocomposite production." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=103671.

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The research work presented in this thesis deals with carbon nanotubes (CNTs), an allotrope of carbon with a cylindrical structure consisting of a rolled up graphene sheet. CNTs are generally produced by the decomposition of a carbon source in the presence of a metal catalyst at elevated temperatures. CNTs have outstanding properties and have attracted immense attention in both industry and academia. However, the development of commercial applications of CNTs is slow due to limitations in the large scale production of CNTs and their high cost. Another limitation is the interface resistance gen

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24

Pallikonda, Mahesh Kumar Pallikonda. "FORMING A METAL MATRIX NANOCOMPOSITE (MMNC) WITH FULLY DISPERSED AND DEAGGLOMERATED MULTIWALLED CARBON NANOTUBES (MWCNTs)." Cleveland State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=csu1503937490966191.

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25

Sullivan, Erin M. "Understanding the process-structure-property relationship in biodegradable polymer nanocomposite films." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/54428.

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The focus of this study was to explore process-structure-property relationships in biodegradable polymer nanocomposite films in order to eliminate the commonly used trial and error approach to materials design and to enable manufacturing of composites with tailored properties for targeted applications. The nanofiller type and concentration, manufacturing method and compounding technique, as well as processing conditions were systematically altered in order to study the process-structure-property relationships. Polylactic acid (PLA) was used as the polymer and exfoliated graphite nanoplatelets

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26

Abdelsayed, Ihab Maher. "CHARACTERIZATION OF ELECTROSPRAYED POLY(VINYLIDENE FLUORIDE)/CNT NANOCOMPOSITE." VCU Scholars Compass, 2005. http://scholarscompass.vcu.edu/etd/1443.

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PVDF, Poly(vinylidene fluoride), is a polymer that has been studied for over four decades due to its good electromechanical properties, stability, and durability in various environments. Currently, PVDF is the only commercially available piezoelectric polymer. PVDF is a polymorph, which indicates the presence of several crystalline phases such as α, β, γ, and δ-phase. Oriented β-phase PVDF exhibits ferroelectric properties and displays the largest piezoelectricity amongst the four phases, which makes it the most desirable phase. Preparing oriented β-phase PVDF is a multi-step process, which

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27

Jain, Rahul. "Carbon nanotube reinforced polyacrylonitrile and poly(etherketone) fibers." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28257.

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Thesis (M. S.)--Polymer, Textile and Fiber Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Kumar, Satish; Committee Member: Bucknall, David; Committee Member: Griffin, Anselm; Committee Member: Shofner, Meisha; Committee Member: Yushin, Gleb

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28

Mokashi, Vineet V. "Study of Mechanical Properties of Carbon Nanotubes and Nanocomposites by Molecular Simulations." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1109358015.

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29

Tunckol, Meltem. "Fonctionnalisation de Nanotubes de Carbone Multi-Parois par des Polymères." Thesis, Toulouse, INPT, 2012. http://www.theses.fr/2012INPT0066/document.

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Cette thèse traite de la modification de surface des nanotubes de carbone avec des polymères Le chapitre I présente l'état de l'art des matériaux hybrides associant des liquides ioniques avec des nanotubes de carbone (NTC) ou du graphenes. Le chapitre II commence par un aperçu général de l'adsorption non-covalente de polymères sur la surface de NTC, suivi d'une description détaillée de l'étude réalisée sur la fonctionnalisation non covalente des nanotubes de carbone avec divers liquides ioniques polymérisable (LIP) à base d'imidazolium. Dans ce cadre, nous avons comparé deux méthodes expérimen

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30

Lutz, Vincent. "Carbon nanotubes as nanofillers or fibers for multifunctional epoxy-based composites." Thesis, Lyon, INSA, 2014. http://www.theses.fr/2014ISAL0039.

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L’utilisation de composites à matrice thermodurcissable et fibres continues est en constante progression dans le secteur aéronautique, ferroviaire, et automobile. Afin d’améliorer les composites obtenus, notamment leur résistance à l’impact et leur conductivité électrique, des nanocharges organiques ou inorganiques peuvent être ajoutées. Les nanotubes de carbone (CNT) font partie des candidats les plus prometteurs pour le renforcement de composites à multi-échelle. Cependant, il s’avère difficile de contrôler la dispersion, la répartition et l’orientation des CNT, après les avoir mélangés aux

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31

Murphy, Kyle Robert. "Nanosilver and CNT-Nanocomposite Toxicology in an In Vivo Model, D. Melanogaster." University of Dayton / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1429977804.

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32

Pereira, André. "Preparação e caracterização por espectroscopia de impedância de compósitos de policarbonato com nanotubos de carbono." reponame:Repositório Institucional da UFABC, 2015.

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Orientador: Prof. Dr. Daniel Zanetti de Florio<br>Dissertação (mestrado) - Universidade Federal do ABC, Programa de Pós-Graduação em Nanociências e Materiais Avançados, 2015.<br>O trabalho realizado mostra a influência do aumento da concentração de nanotubos de carbono sobre a propriedade de impedância, em um nanocompósito a base de policarbonato e nanotubos de paredes múltiplas. Neste trabalho, o polímero policarbonato (PC) foi misturado em diversas concentrações com nanotubos de carbono de paredes múltiplas (MWCNT) do tipo "não purificado" formando nanocompósitos. As amostras foram preparada

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33

Pras, Maxime. "Influence de l’état de dispersion de nanotubes de carbone sur leur relargage et aérosolisation lors de la sollicitation tribologique de nanocomposites MWNT/polymère." Thesis, Lyon, INSA, 2013. http://www.theses.fr/2013ISAL0020/document.

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Les composites renforcés avec des nanotubes de carbone présentent un réel potentiel en terme de renforcement mécanique, d’amélioration de conductivités électrique et thermique des matériaux cependant les effets toxicologiques des nanotubes de carbone sur la santé humaine sont toujours à l’étude, et tout laisse à penser que ceux-ci feront prochainement l’objet de normes et autres législation. C’est pourquoi les fabricants de composites renforcés nanotubes de carbone ont tout intérêt à prendre les devants sur de futures législations en contrôlant le relargage de nanotubes isolés lors de différen

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34

Golosova, Anastasia [Verfasser], Christine M. [Akademischer Betreuer] Papadakis, and Rainer [Akademischer Betreuer] Jordan. "Chemical modification of carbon nanotubes for nanocomposite applications / Anastasia Golosova. Gutachter: Christine M. Papadakis ; Rainer Jordan. Betreuer: Christine M. Papadakis." München : Universitätsbibliothek der TU München, 2011. http://d-nb.info/1014330661/34.

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Axel, Salinier. "Préparation d’un composite hybride par co-malaxeur : influence des paramètres de mise en oeuvre sur les propriétés." Thesis, Pau, 2014. http://www.theses.fr/2014PAUU3047/document.

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Ce travail de thèse porte sur les relations entre les paramètres de mise en œuvre à l’état fondu et les propriétés d’un composite hybride à matrice thermoplastique. Les charges étudiées sont les fibres de verre courtes (échelle micrométrique) et les nanotubes de carbone (NTC) (échelle nanométrique) dispersées dans une matrice thermoplastique thermostable, le poly(éther imide) (PEI). Nous avons montré que les fibres de verre participent fortement à la structuration du réseau de NTC et que la conductivité électrique du composite hybride est plus élevée que celle des nanocomposites. Les paramètre

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36

Bardash, Liubov. "Synthesis and investigation of nanostructured polymer composites based on heterocyclic esters and carbon nanotubes." Thesis, Lyon 1, 2011. http://www.theses.fr/2011LYO10174/document.

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La thèse concerne les synthèse et caractérisation de composites polymères nanostructurés à base d’esters de cyanates de bisphénol a (DCBA) ou à base d’oligomères cycliques de butylène téréphtalate (CBT) et de nanotubes de carbone multi-parois (MWCNTS). L’effet catalytique des nanotubes de carbone sur la polycyclotrimerisation de DCBA et aussi sur la polymérisation du CBT est observé. L’augmentation de la température de cristallisation a été fixée pour tous les échantillons de nanocomposites à base de polybutylène téréphtalate (cPBT). L’effet de la méthode de mise en forme de cPBT/MWCNTS sur se

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Bardash, Liubov, and Liubov Bardash. "Synthesis and investigation of nanostructured polymer composites based on heterocyclic esters and carbon nanotubes." Phd thesis, Université Claude Bernard - Lyon I, 2011. http://tel.archives-ouvertes.fr/tel-00821160.

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The thesis relates to synthesis and investigation of nanostructured polymer composites based on oligomers of cyanate esters of bisphenol a (DCBA) or cyclic butylene terephthalate (CBT) and multiwalled carbon nanotubes (MWCNTS). Catalytic effect of mwcnts in process of DCBA polycyclotrimerization as well as in cbt polymerization has been observed. Significant increase in crystallization temperature of nanocomposites based on polybutylene terephthalate (cPBT) with adding of MWCNTS is observed. The effect of processing method of cpbt/mwcnts nanocomposites on its electrical properties has been fou

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Escobar, Teran Freddy David. "A new approach towards understanding the ion transfer dynamics in nanostructured carbon-based thin films for energy storage applications." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066363/document.

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Des films à base de nanotubes de carbone et d'oxyde de graphène reduit ont été préparés sur des électrodes d'or de microbalances et testées dans différents électrolytes tels que LiCl, NaCl et KCI. Le stockage de charge au sein de ces films a été étudié par ac-électrogravimétrie, couplage entre une microbalance à quartz rapide (QCM) et la spectroscopie d'impédance électrochimique (EIS). La nature chimique et le rôle de chaque espèce, anion, cation, cation solvaté, solvant libre, impliquée dans le mécanisme de stockage de charge, ont été clairement identifiés au cours de la polarisation cathodiq

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Al-Kawaz, Ammar. "Development and rheological analysis of a surface polymer nanocomposite anti-friction." Thesis, Strasbourg, 2015. http://www.theses.fr/2015STRAE025/document.

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L'objectif de cette thèse est l'identification de couplages (nanoparticules / matrice de poly(methyl-methacrylate) PMMA) qui renforcent la rigidité de surface du PMMA tout en conservant le maximum de transparence. Le choix s'est porté sur trois type de nanoparticules carbonées : du graphène multicouches (FLG), de l'oxyde de graphène (GO) et des nanotubes de carbones (MWCNT). Une première décrit la préparation et la fonctionnalisation de ces trois types de nanoparticules pour assurer une meilleure dispersion dans la matrice. Deux méthodes ont été retenues pour réaliser ces matériaux composites

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Dinh, Nghia Trong, and Olfa Kanoun. "Temperature-Compensated Force/Pressure Sensor Based on Multi-Walled Carbon Nanotube Epoxy Composites." Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-175255.

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In this study, we propose a multi-walled carbon nanotube epoxy composite sensor for force and pressure sensing in the range of 50 N–2 kN. A manufacturing procedure, including material preparation and deposition techniques, is proposed. The electrode dimensions and the layer thickness were optimized by the finite element method. Temperature compensation is realized by four nanocomposites elements, where only two elements are exposed to the measurand. In order to investigate the influence of the filler contents, samples with different compositions were prepared and investigated. Additionally, th

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Huang, Hui. "Electrochemical Application and AFM Characterization of Nanocomposites : Focus on Interphase Properties." Doctoral thesis, KTH, Yt- och korrosionsvetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-203239.

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The use of graphene and conductive polyaniline nanomaterials in the field of electrochemistry is increasing due to their excellent conductivity, rapid electron transfer and high specific surface area. However, these properties are strongly dependent on the preparation processes. To accelerate the development of advanced electrochemical sensors for the simultaneous detection of trace amounts of heavy metal ions, two facile and green methods are proposed to improve their performance in this thesis. The first one was dedicated to make graphene-carbon nanotube hybrid nanocomposites. The introducti

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Changyong, Lu. "Synthesis and characterization of magnetic nanocomposites and their applications study." Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/457572.

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Los nanomateriales, especialmente las nanopartículas, se convierten en una de las áreas más atractivas no sólo en la investigación científica, sino también en las aplicaciones industriales. En esta tesis se ha estudiado la preparación de nanopartículas de magnetita, sus nanocompuestos relacionados y la aplicación de los nanomateriales obtenidos. Las nanopartículas core-shell de Fe3O4@SiO2 se sintetizaron mediante métodos de microemulsión inversa estándar y de microondas. Las nanopartículas obtenidas se caracterizaron con diferentes técnicas de laboratorio y se estudiaron los diferentes efecto

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Benchirouf, Abderrahmane. "Carbonaceous Nanofillers and Poly(3,4-ethylenedioxythiophene) Poly(styrenesulfonate) Nanocomposites for Wireless Sensing Applications." Universitätsverlag der Technischen Universität Chemnitz, 2018. https://monarch.qucosa.de/id/qucosa%3A31903.

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The current state of wireless sensing technologies possesses a good reliability in terms of time response and sensing on movable parts or in embedded structures. Nevertheless, these tech- nologies involve energy supply such as battery and suffer from low resolution and bulky signal conditioning system for data processing. Thus, a RFID passive wireless sensor is a good candidate to overcome these issues. The feasibility of implementing microstrip patch antennas for sensing application were successfully investigated; however, low sensitivity was always a big issue to be concerned. Sensors based

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Lemes, Ana Paula. "Nanocompositos de poli(3-hidroxibutirato-co-3-hidroxivalerato) e nanotubos de carbono." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/248933.

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Orientador: Nelson Eduardo Duran Caballero<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Química<br>Made available in DSpace on 2018-08-15T20:41:34Z (GMT). No. of bitstreams: 1 Lemes_AnaPaula_D.pdf: 6763336 bytes, checksum: afc8ad12883dd3f1af509e8d8d714b8e (MD5) Previous issue date: 2010<br>Resumo: Esse trabalho avaliou o efeito da adição de nanotubos de carbono de paredes múltiplas (NTC) nas propriedades térmicas e mecânica, morfologia e hidrofobicidade do poli(3-hidroxibutirato-co-3-hidroxivalerato), o PHBV. A adição de nanotubos de carbono poderia implicar em melho

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Bozlar, Mickaël. "Modification de surface des nanotubes de carbone par un polymère conducteur électrogénéré pour la réalisation de nanocomposites multifonctionnels." Thesis, Châtenay-Malabry, Ecole centrale de Paris, 2009. http://www.theses.fr/2009ECAP0043/document.

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Du fait de leurs propriétés intrinsèques exceptionnelles, les nanotubes de carbone (CNTs) sont des matériaux bien adaptés pour renforcer les polymères thermodurcissables. Le nanocomposite multifonctionnel ainsi obtenu possède des propriétés électriques, thermiques et mécaniques sensiblement meilleures que le polymère seul, ce qui lui procure de nombreuses applications potentielles, et tout particulièrement dans le domaine de l’électronique ou de l’aéronautique. Le but de cette thèse de doctorat est orienté suivant deux axes. Il s’agit dans un premier temps de mettre au point un matériau nanoco

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Motaragheb, Jafarpour Saeed. "Patterned Nanocomposite of Carbon Nanotube/Polymer." Thesis, Umeå universitet, Institutionen för fysik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-133332.

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Single walled carbon nanotubes (SWCNTs) are carbon based nanostructures with extraordinary electronical and mechanical properties. They are used in a wide range of applications, usually embedded in polymer as fillers to form polymer based nanocomposites, in order to affect the electronic behavior of the polymer matrix. However, as the nanotubes properties are directly dependent on their intrinsic structure, it is necessary to select specific nanotubes depending on the application. In addition, as randomly oriented CNTs (as Filler) embedded in the polymer matrix show lower electrical conductivi

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Leal, Claudenete Vieira 1972. "Desenvolvimento, caracterização e avaliação 'in vitro' de nanocompósitos de poli(L-ácido lático) e nanotubos de carbono de paredes múltiplas purificados." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265775.

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Orientador: Eliana Aparecida de Rezende Duek<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-27T23:48:09Z (GMT). No. of bitstreams: 1 Leal_ClaudeneteVieira_D.pdf: 6830750 bytes, checksum: e1a33a17e1e2276d0b1b5bace3231cb6 (MD5) Previous issue date: 2015<br>Resumo: Nanocompósitos poliméricos exibem potencial para aplicações como biomateriais, pois podem melhorar as propriedades dos polímeros por meio da associação com nanoestruturas, resultando em um material com propriedades estruturais e funcionais superiores. O

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Pedroni, Lucas Gomes. "Nanocompositos elastomericos baseados em MWCNTs : preparação, caracterização, e aplicações." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/248452.

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Orientadores: Ana Flavia Nogueira, Maria Isabel Felisberti<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-08-13T13:37:27Z (GMT). No. of bitstreams: 1 Pedroni_LucasGomes_M.pdf: 2275674 bytes, checksum: 3829c2b15fd56db6cd84d632bf86508b (MD5) Previous issue date: 2009<br>Resumo: Nanocompósitos poliméricos baseados em nanotubos de carbono possuem um dos mais elevados potenciais tecnológicos devido à possibilidade de produção de materiais com destacadas propriedades mecânicas, alta condutividade elétrica em baixos teores (ba

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Rahmat, Meysam. "Carbon nanotube - polymer interaction in nanocomposites." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=104648.

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Carbon nanotube–polymer nanocomposites have been the centre of intense studies for the past few years. With the superior properties of carbon nanotubes and the flexibility of polymers for different applications, extremely high expectations were set for this class of nanocomposites. Modelling studies showed significant potential, but the experimental investigations faced strict challenges to reach the predicted values. One of the main challenges is to obtain the optimum interaction between the nanotubes and the polymer matrix. The interaction influences the dispersion of nanotubes in the polyme

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Battisti, Andrea. "Conductive carbon nanotube thermosetting polyester nanocomposites." Thesis, Cranfield University, 2009. http://dspace.lib.cranfield.ac.uk/handle/1826/7621.

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A commercial unsaturated polyester resin has been used in combination with commercial multiwalled carbon nanotubes (MWNTs) to study the effects of this nanofiller on the electrical properties of the mix in the liquid state, during the cure and in the solid state. The level of addition of the nanotubes ranged from 0.05 to 0.3 wt%. The dispersion of the filler particles in the matrix was carried out combining triple roll milling, horn sonication and high shear mixing. Qualitative optical and electronic microscopy characterisation supports the development of novel techniques for real-time quantit

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