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Tesi sul tema "Adhesives"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Apolonio, Fabianni MagalhÃes. "Stability of adhesive interface different adhesives applied to dentin." Universidade Federal do CearÃ, 2009. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=5181.

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Abstract (sommario):

FundaÃÃo Cearense de Apoio ao Desenvolvimento Cientifico e TecnolÃgico<br>There is a general consensus that resin-dentin bonds created by contemporary hydrophilic dentin adhesives deteriorate over time. One way to predict how resin-dentin interface would behave over time is aging the specimens in vitro by immersion in different solutions. The objective of this study was to evaluate the effect of immersion in NaOCl solution on the bond interface created by different adhesive systems. For this, it was used 28 human third molars that had superficial dentin exposed and composite build-ups were bui

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2

Su, Ning. "Durability and fatique performance of structural adhesives and adhesive joints." Thesis, University of Dundee, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240601.

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3

Risan, Jared. "Method for Compliance Controlled Adhesive Switching and Magnetically Controlled Switchable Adhesives." Thesis, North Dakota State University, 2013. https://hdl.handle.net/10365/26990.

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Abstract (sommario):

Adhesives are used in a variety of ways and are so common that they are easily overlooked. Adhesive hooks, tapes, glues, and switchable climbing mechanisms used by insects and lizards are clear examples of how adhesives are beneficial to society and nature. The development of novel switchable adhesives is a research area that is largely incomplete. In fact, very few switchable adhesives exist on the market today; hence their development would tremendously impact the adhesive industry. This thesis studies a mechanism for stiffness controlled switchable adhesion by utilizing a magnetically switc

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4

Ren, Dakai. "Moisture-Cure Polyurethane Wood Adhesives: Wood/Adhesive Interactions and Weather Durability." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/29866.

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This project addresses two main subjects of moisture-cure polyurethane (PUR) wood adhesives: wood/PUR interactions and structure-property behavior emphasizing on weather durability. For these purposes, one simplified model PUR (MPUR) and three more commercially significant PURs (CPURs) with different hard segment contents were prepared. Separately, an early side project involved the synthesis of a 13C and 15N double-labeled polymeric methylenebis(phenylisocyanate) (pMDI) resin; this was used for the solid-state NMR characterization of isocyanate cure chemistry in wood bondline. MPUR and a CPU

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5

Su, Bin. "Electrical, thermomechanical and reliability modeling of electrically conductive adhesives." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/10425.

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The first part of the dissertation focuses on understanding and modeling the conduction mechanism of conductive adhesives. The contact resistance is measured between silver rods with different coating materials, and the relationship between tunnel resistivity and contact pressure is obtained based on the experimental results. Three dimensional microstructure models and resistor networks are built to simulate electrical conduction in conductive adhesives. The bulk resistivity of conductive adhesives is calculated from the computer-simulated model. The effects of the geometric properties of fill

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6

Kon, Haruhiko. "Characterization of adhesively bonded joints using bulk adhesive properties." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-01242009-063346/.

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7

Soldado, Cañadas Piedad. "Propiedades físico-químicas, adaptación interfacial, biocompatibilidad y citotoxicidad de algunos cementos endodóncicos." Doctoral thesis, Universitat de Barcelona, 2018. http://hdl.handle.net/10803/663909.

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OBJETIVOS: Evaluar las propiedades físico-químicas y adaptación interfacial de los siguientes cementos endodóncicos: Endo-CPM Sealer, Activ GP Sealer, Sealepex y AH Plus. Cuantificar in vivo la respuesta de los tejidos apicales y periapicales de dientes de perro con vitalidad pulpar después de la obturación del conducto radicular con RealSeal XT y Sealapex Xpress. Estudiar la citotoxicidad in vitro, en cultivos celulares de RealSeal XT y Sealapex Xpress. Considerar la biocompatibilidad in vivo, en tejido subcutáneo de ratones, de RealSeal XT y Sealapex Xpress. MATERIAL Y MÉTODOS: Para evaluar

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8

Xu, Botao. "Fracture mechanisms and failure criteria of adhesive joints and toughened epoxy adhesives." Thesis, Queen Mary, University of London, 2010. http://qmro.qmul.ac.uk/xmlui/handle/123456789/371.

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Abstract (sommario):

Adhesive bonded applications are used widely in industry because of significant advantages such as uniform stress distribution, and the ability to join different materials. However most epoxy structural adhesives are brittle at room temperature and it is required to improve their toughness. The objective of this work was to understand the fracture of adhesive joints, failure criteria and rubber toughening mechanisms via a series of experiments and FEA modelling. Double lap joints (DLJ) bonded by commercial AV119 adhesive were studied. It was found that local strain and failure path were contro

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9

Deplace, Fanny. "Waterborne nanostructured adhesives." Paris 6, 2008. http://www.theses.fr/2008PA066035.

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Nous avons étudié les propriétés d’adhésifs préparés à partir de particules de latex nanostructurées. Une méthodologie basée sur deux critères rhéologiques a été proposée pour optimiser les performances adhésives. Elle nous a permis d’identifier des stratégies applicables dans le cas particulier de PSA préparés à partir de particules de latex ayant une morphologie cœur-écorce. Une stratégie intéressante est l’activation d’une réaction de réticulation interparticule pendant le séchage du latex. Nous avons montré l’effet remarquable de cette réaction de réticulation sur les propriétés en grandes

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10

Manterola, Najera Julen. "Development of advanced methods to characterise the fracture behaviour of flexible bonded joints." Doctoral thesis, Universitat de Girona, 2020. http://hdl.handle.net/10803/672807.

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Abstract (sommario):

Advanced joining technologies such as bonded joints play an important role to develop more efficient and durable structures. The present Thesis gives a step forward and proposes different solutions to characterise the fracture behaviour of flexible bonded joints for laboratory and industrial activities. Unlike in laboratory practices, thick and tough adhesives are applied in industrial activities. Moreover, bonded joints have multiple geometries and non-visible cracks may appear, while bonded joints are subjected to service environment. Four different subjects have been addressed to bring both

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11

Puthenparambil, Abhilash. "Effect of bonding pressure on reliability of anisotropic conductive adhesives [sic] joints in a silicon-to-flex-substrate interconnction." Diss., Online access via UMI:, 2006.

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12

Dietrich, Jan [Verfasser]. "Functional adhesives and functionally graded adhesives in fiber metal laminates / Jan Dietrich." Paderborn : Universitätsbibliothek, 2020. http://d-nb.info/1217325867/34.

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13

Nasiri, Anahita. "The Use of Lignin in Pressure Sensitive Adhesives and Starch-Based Adhesives." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/39853.

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After cellulose, lignin is the second most abundant natural polymer in the world. It has multiple functional groups, providing great potential for polymer production. In this project, we explored the use of this renewable and valuable resource in two different adhesive applications to displace petroleum-based additives, thereby providing a more sustainable and “green” product. In this regard, two types of lignin, water-soluble (Amalin LPH) and non-water-soluble lignin (Amalin HPH) provided by the British Columbia Research Institute (BCRI) were used. In the first case, lignin was added to a pr

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14

Tanguy, Francois. "Debonding mechanisms of soft adhesives : toward adhesives with a gradient in viscoelasticity." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2014. http://tel.archives-ouvertes.fr/tel-01021169.

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Abstract (sommario):

During the debonding of a soft adhesive (as are Pressure Sensitive Adhesives or PSA), complex mechanisms enter in competition at the interface and in the bulk of the adhesive film. In order to optimize these adhesives, it is crucial to understand the transitions between the different debonding modes. We studied these transitions using model materials and carried out a quantitative analysis of debonding experiments with a new image analysis method. We also modeled the mechanical behavior of our materials under uniaxial deformation by using a 2-modes Phan-Thien and Tanner (PTT) viscoelastic mode

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15

Tanguy, Francois. "Debonding mechanisms of soft adhesives : toward adhesives with a gradient in viscoelasticity." Electronic Thesis or Diss., Paris 6, 2014. http://www.theses.fr/2014PA066079.

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Lors du décollement d'un adhésif mou (tels que les adhésifs sensibles à la pression, dits PSA), des mécanismes complexes entrent en jeu à l'interface et dans l'épaisseur du film d'adhésif. Afin d¿optimiser ces adhésifs, il convient de maîtriser les transitions entre les différents modes de décollement. Nous avons étudié ces transitons grâce à des matériaux modèles. Nous avons réalisé une analyse quantitative d'expériences de décollement, en nous appuyant notamment sur une nouvelle technique d'analyse d'image. Nous avons également modélisé le comportement mécanique de nos matériaux en traction

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16

Tilley, Eve Rochelle. "Structural polymers for adhesives." Thesis, University of Leeds, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417728.

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17

Su, Bin. "Electrical, thermomechanical and reliability modeling of electrically conductive adhesives." Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-12192005-124641/.

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Thesis (Ph. D.)--Mechanical Engineering, Georgia Institute of Technology, 2006.<br>Qu, Jianmin, Committee Chair ; Baldwin, Daniel, Committee Member ; Wong, C. P., Committee Member ; Sitaraman, Suresh, Committee Member ; Jacob, Karl, Committee Member.

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18

Leijonmarck, Simon. "Electrically Induced Debonding of Adhesives." Licentiate thesis, KTH, Tillämpad elektrokemi, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-27742.

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Electrically induced adhesive debonding is a process where an adhesive can be debonded at command with help of an applied voltage. To make this process function, the adhesive is bonded between two metal substrates. In this study an epoxy adhesive is adhered between two aluminium foils forming a laminate structure. The adhesive is made ionically conductive by an addition of an ionic liquid before the curing. This arrangement forms an electrochemical cell, where the metal substrates act as the electrodes while the ionically conductive adhesive acts as the electrolyte. When a voltage is applied

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19

Khosravi, Sara. "Protein-Based Adhesives for Particleboards." Licentiate thesis, KTH, Ytbehandlingsteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-33750.

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The main objective of this study was to elucidate the possibilities to use wheat gluten (WG) as a binder for particleboards, as well as soy protein isolate (SPI). The focus was on the effect of the adhesive formulation and the processing conditions, while the press parameters were kept constant. Some aspects of the dispersion and the preparation of the dispersions that were investigated are: the time (1, 3 or 5h) to prepare the dispersion, the temperature (room temperature, 50 or 80°C) during the preparation of the dispersions and the effect of storing (1, 2.5 or 4 days) the dispersions. Furth

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20

Knox, Esther M. "Marine applications for structural adhesives." Thesis, University of Glasgow, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241876.

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21

Tredwell, S. "The durability of phenolic adhesives." Thesis, De Montfort University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371422.

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22

Fior, Valerie F. "A beam test for adhesives." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/43969.

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Abstract (sommario):

The strength of materials solution for a new bonded cantilever beam test specimen to determine adhesive shear properties is reviewed and discussed. A parametric analysis for the adhesive shear stress and for the end deflection reveals the specimen dimensions required for reliable bonded adhesive shear properties determination. Recommendations are provided for conducting reproducible tests. A pure and quasi-uniform shear test for stiff adhesives is proposed. Analytical solutions are compared with Finite Element solutions from VISTA and NOVA for the stresses in the adhesive. It appears that t

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23

Bott, Richard H. "Characterization of modified polyimide adhesives." Diss., Virginia Polytechnic Institute and State University, 1988. http://hdl.handle.net/10919/53914.

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Abstract (sommario):

An addition polyisoimide prepolymer was modified through the incorporation of metal particles. The response of this metal/polymer composite to mechanical vibrations and the passage of electric current was measured. Model aluminum conductor bar joints containing this material were assembled and exposed to elevated temperatures for extended periods of time while the electrical properties of the composites were monitored. In the most favorable systems, no thermal degradation of the electrical properties was observed. Dynamic mechanical behavior of the metal/polymer composites indicated good adhes

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24

Rusanen, Outi. "Adhesives in micromechanical sensor packaging /." Espoo : Technical research centre of Finland, 2000. http://catalogue.bnf.fr/ark:/12148/cb409218404.

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25

Schmitz, John F. "Enzyme modified soy flour adhesives." [Ames, Iowa : Iowa State University], 2009. 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:3369888.

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26

Doody, Paul David. "The rheology and strength of hot melt adhesives." Thesis, Coventry University, 1997. http://curve.coventry.ac.uk/open/items/aee7101d-7aef-41a0-a6a1-32d9877f92d1/1.

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Abstract (sommario):

Various properties of the components and adhesives were modelled. The compatibility of the components were successfully incorporated into an extended Fox equation to predict the glass transition temperature. The peel strength of the adhesive was modelled in terms of the rheological properties of elastic moduli and loss tangent values at different temperatures. A second model based upon the value of the loss tangent at room temperature was also broadly successful but deviations from predicted behaviour were observed which were attributable to failure of the adhesive joints by a mode not include

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27

Glavas, Lidija. "Starch and Protein based Wood Adhesives." Thesis, KTH, Skolan för kemivetenskap (CHE), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-31486.

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Abstract (sommario):

Different native starches, modified starches and plant proteins were evaluated as wood adhesives. They were combined with different synthetic polymers in order to achieve improved adhesive properties. The study was divided into two parts: development of starch based adhesive formulations and evaluation of an existing protein based adhesive. Eight different starches and two different plant proteins were used in the first part. Starch 1 and starch 2 as well as protein 1 and protein 2 were some of the used materials. These materials were dispersed in synthetic polymers such as poly (vinyl acetat

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28

Karlsson, Patrik. "Determination of viscoelastic properties of adhesives." Thesis, Linnéuniversitetet, Institutionen för byggteknik (BY), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-35521.

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Abstract (sommario):

A research project at Linnaeus University focuses on optimizing theadhesives joints between wood and glass, with the aim of obtain stiffcomponents that can act as a load and stabilizing elements and still betransparent. But there is, however, still a lack of knowledge regarding theadhesive materials which need to be further investigated. This thesis focused on testing six different adhesives in relaxation and todetermine the viscosity (η) and modulus of elastic (MOE, E). Viscosity andMOE are then used in combination in a standard linear solid model (SLS)describing the viscoelasticity mathemati

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29

Graves, Colin G. "Electrically conductive adhesives based on polythiophene." Thesis, Anglia Ruskin University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.410803.

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30

Luckyram, Jeenarainsingh. "Fatigue and fracture of structural adhesives." Thesis, University of Dundee, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240139.

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31

Zhang, Hong Sheng. "Polymerised acrylates for use in adhesives." Thesis, City University London, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306054.

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32

Jain, Dharamdeep. "Humidity Driven Performance of Biological Adhesives." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1510053266807976.

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33

Mylonakis, Andreas Wei Yen. ""Biodegradable polymer adhesives, hybrids and anomaterials" /." Philadelphia, Pa. : Drexel University, 2008. http://hdl.handle.net/1860/2911.

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34

Ellison, Matthew M. "Metal/polymer interactions in polyimide adhesives." Diss., This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-08282003-155323/.

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35

Browne, Gloria Joyce 1951. "Volatile organic emissions from carpet adhesives." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/291538.

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In this study volatile organic compounds (VOCs) emitted during carpet installations employing water-based adhesives were characterized. The potential impacts of 4 adhesives on indoor air quality were evaluated. Headspace sampling and analysis by gas chromatography/mass spectrometry were used to qualitate VOC emissions. Adhesives and carpet/adhesive composite samples were prepared for quantitative analysis of VOC emissions by gas chromatography with flame ionization detection. Volatiles were concentrated using a monitoring device and collected on charcoal adsorption tubes. Sampling intervals ra

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36

Özmen, Nilgül. "Lignin based adhesives for particleboard production." Thesis, Bangor University, 2000. https://research.bangor.ac.uk/portal/en/theses/lignin-based-adhesives-for-particleboard-production(38b5f43f-c055-4156-b03c-492391d66d59).html.

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The purpose of this study was to utilise lignin as a partial substitute for phenol in PF resins. To achieve this, initially brown rot lignin was produced by a bioconversion technique. During the course of the study, it became clear that the production of brown rot lignin had a limited success. Since brown rot lignin could not be obtained in sufficient quantity and purity by a bioconversion method, other alternative lignin production methods, as well as commercially available lignin, were chosen; namely production of lignin from black liquor and Alcell® (organosolv) lignin. Before performing pr

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37

Butkus, Lawrence M. "Environmental durability of adhesively bonded joints." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/19008.

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38

Siu, Frederick Y. K. "Studies of microwaves applications for adhesive, weld joint and NDT technique." Swinburne Research Bank, 2007. http://hdl.handle.net/1959.3/36854.

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Thesis (MEng) - Swinburne University of Technology, Industrial Research Institute Swinburne - 2007.<br>A thesis submitted for fulfillment of the requirement for the degree of Master of Engineering, Industrial Research Institute, Swinburne University of Technology - 2007. Typescript. Includes bibliographical references (p. 168-193).

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39

Miletic, Vesna. "Micro-Raman spectroscopic studies on the adhesive-dentine interface and the degree of conversion of dental adhesives." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/4415.

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Abstract (sommario):

A series of studies on monomer to polymer conversion in adhesive systems was undertaken using micro-Raman spectroscopy. A database of micro-Raman spectra was compiled for identification of tooth tissues and materials. The degree of conversion was assessed as a function of time and light source. Linear and two-dimensional micro- Raman characterisations of the adhesive-dentine and resin-based composite-adhesivedentine interfaces were performed. The degree of monomer to polymer conversion of adhesive systems was correlated with the amount of eluted monomers obtained by highperformance liquid chro

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40

Paris, Jesse Loren. "Carboxymethylcellulose Acetate Butyrate Water-Dispersions as Renewable Wood Adhesives." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/34644.

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Two commercial carboxymethylcellulose acetate butyrate (CMCAB) polymers, high and low molecular weight (MW) forms, were analyzed in this study. High-solids water-borne dispersions of these polymers were studied as renewable wood adhesives. Neat polymer analyses revealed that the apart from MW, the CMCAB systems had different acid values, and that the high MW system was compromised with gel particle contaminants. Formulation of the polymer into water-dispersions was optimized for this study, and proved the â direct methodâ , in which all formulation components were mixed at once in a sealed v

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41

Degrandi, Elise. "LATEX HYBRIDES URETHANE/ACRYLIQUE POUR APPLICATIONS ADHESIVES." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2009. http://tel.archives-ouvertes.fr/tel-00465348.

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Cette thèse a pour objet l'étude de films adhésifs obtenus par le séchage de particules de latex hybrides uréthane/acrylique. Ces latex ont été préparés par polymérisation en miniémulsion pour assurer une incorporation homogène du polyuréthane dans chaque particule. L'étude de la morphologie des particules et des films a montré que le greffage du polyuréthane sur le réseau acrylique est essentiel pour éviter une séparation de phase à l'échelle du film, néfaste pour les propriétés macroscopiques. Les propriétés mécaniques de ces films hybrides sont contrôlés par deux paramètres indépendants : L

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42

Bihari, Kathleen L. "Analysis of Thermal Conductivity in Composite Adhesives." NCSU, 2001. http://www.lib.ncsu.edu/theses/available/etd-20010808-130536.

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<p>BIHARI, KATHLEEN LOUISE. Analysis of Thermal Conductivity in Composite Adhesives (Under the direction of H. Thomas Banks). Thermally conductive composite adhesives are desirable in many industrial applications, including computers, microelectronics, machinery and appliances. These composite adhesives are formed when a filler particle of high conductivity is added to a base adhesive. Typically, adhesives are poor thermal conductors. Experimentally only small improvements in the thermal properties of the composite adhesives over the base adhesives have been observed. A thorough understanding

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43

Lu, Daoqiang. "Fundamental understanding of electrically conductive adhesives (ECA's)." Diss., Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/19911.

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44

Naldrett, Michael James. "Cement and other adhesives in the barnacle." Thesis, University of Reading, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306213.

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45

Miles, A. L. "The geometric modification of high temperature adhesives." Thesis, University of Bristol, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311365.

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46

Zheng, Jun. "Studies of PF Resole / Isocyanate Hybrid Adhesives." Diss., Virginia Tech, 2002. http://hdl.handle.net/10919/25960.

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Phenol-formaldehyde (PF) resole and polymeric diphenylmethane diisocyanate (PMDI) are two commonly used exterior thermosetting adhesives in the wood-based composites industry. There is an interest in combining these two adhesives in order to benefit from their positive attributes while also neutralizing some of the negative ones. Although this novel adhesive system has been reportedly utilized in some limited cases, a fundamental understanding is lacking. This research serves this purpose by investigating some of the important aspects of this novel adhesive system. The adhesive rheological

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47

Riedlinger, Darren Andrew. "Characterization of PF Resol/Isocyanate Hybrid Adhesives." Thesis, Virginia Tech, 2008. http://hdl.handle.net/10919/31366.

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Water-based resol phenol formaldehyde, PF, and organic polymeric methylenebis(phenylisocyanate), pMDI, are the two primary choices for the manufacture of exterior grade wood-based composites. This work addresses simple physical blends of pMDI dispersed in PF as a possible hybrid wood adhesive. Part one of this study examined the morphology of hybrid blends prepared using commercially available PF and pMDI. It was found that the blend components rapidly reacted such that the dispersed pMDI droplets became encased in a polymeric membrane. The phase separation created during liquid/liquid blendi

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48

Yang, Xing. "Organic Fillers in Phenol-Formaldehyde Wood Adhesives." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/64999.

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Veneer-based structural wood composites are typically manufactured using phenol-formaldehyde resols (PF) that are formulated with wheat flour extender and organic filler. Considering that this technology is several decades old, it is surprising to learn that many aspects of the formulation have not been the subject of detailed analysis and scientific publication. The effort described here is part of a university/industry research cooperation with a focus on how the organic fillers impact the properties of the formulated adhesives and adhesive bond performance. The fillers studied in this work

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Ge, Liehui. "Synthetic Gecko Adhesives and Adhesion in Geckos." University of Akron / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=akron1294161826.

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Blandini, Lucio. "Structural use of adhesives in glass shells." Beuren Stuttgart Grauer, 2005. http://d-nb.info/989872211/04.

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