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Academic literature on the topic 'Mousses (matériaux) – Propriétés physico-chimiques'
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Journal articles on the topic "Mousses (matériaux) – Propriétés physico-chimiques"
Tual, A., E. Bourles, P. Barey, A. Houdoux, M. Desprairies, and JL Couthaudon. "Effet d’un émulsifiant de type sucroester sur les propriétés physico-chimiques de mousses laitières." Sciences des Aliments 25, no. 5-6 (December 28, 2005): 455–66. http://dx.doi.org/10.3166/sda.25.455-466.
Full textHayek, Mahmoud, Marie Salgues, Frédéric Habouzit, Sandrine Bayle, Jean-Claude Souche, Klartjee De Weerdt, and Sylvain Pioch. "L’influence de la carbonatation sur la biocolonisation de matériaux cimentaires dans le milieu marin." Matériaux & Techniques 108, no. 2 (2020): 202. http://dx.doi.org/10.1051/mattech/2020020.
Full textBakhti, Abdellah, and Mohand SaÏd Ouali. "Sorption des ions chromate sur une hydrotalcite de synthèse calcinée." Water Quality Research Journal 40, no. 2 (May 1, 2005): 177–83. http://dx.doi.org/10.2166/wqrj.2005.020.
Full textMennane, Z., I. Houlali, R. Charof, J. Abrini, and N. Elmtili. "Hygiene quality of traditional and industrial table olives from markets in Rabat-Salé and Temara cities in Morocco." African Journal of Clinical and Experimental Microbiology 22, no. 1 (January 26, 2021): 88–92. http://dx.doi.org/10.4314/ajcem.v22i1.11.
Full textDissertations / Theses on the topic "Mousses (matériaux) – Propriétés physico-chimiques"
Speyer, Lucie. "Élaboration de mousses de graphène par voie solvothermale et modification de leurs propriétés physico-chimiques." Thesis, Université de Lorraine, 2016. http://www.theses.fr/2016LORR0120/document.
Full textGraphene-based materials have attracted a great interest these last years, due to their outstanding properties. In particular, graphene foams offer a part of the properties of graphene, combined with a high surface area: they show great potentiality in some application domains such as energy. This thesis work is focused on the elaboration of graphene foams by a solvothermal-based process, an original method involving a solvothermal reaction between an alcohol and sodium, followed by a thermal treatment. The study of the compounds produced by the solvothermal reaction and the pyrolysis under a nitrogen flow was lead through multi-scale and complementary characterization techniques: mechanisms of formation of the solvothermal compound and graphenic foams have been proposed. The optimal conditions of pyrolysis were also determined, and provide the obtaining of graphene foams with a high structural quality and a large specific surface area. Furthermore, some types of post-elaboration treatments were carried out: notably, a vacuum annealing significantly improves the structural quality and the purity of the samples. Lastly, the modification of the physico-chemical properties of the foams through the chemistry of carbon materials intercalation has been studied. Graphene films were prepared from the intercalated foams and their electrical properties were evaluated
Letellier, Maxime. "Optimisation de mousses de carbone dérivées de tannin par l’étude et la modélisation de leurs propriétés physiques." Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0165/document.
Full textIn this PhD work, alveolar materials in the form of carbon cellular and/or reticulated foams were produced in order to study and to model their physical properties. Cellular carbon foams were obtained by pyrolysis under nitrogen flow of rigid foams mainly derived from biomass-based tannins and furfuryl alcohol. The structures of these foams were tailored through the modification of the formulation of their organics precursors. The reticulated foams, only comprising a solid skeleton made of struts without cell walls, were prepared from polymeric commercial foams through a template method. The structures of all of these materials were thoroughly characterised by using different methods such as electron microscopy and X-ray microtomography. The physical properties of these foams were investigated through mechanical, acoustic, thermal and electromagnetic measurements. Mechanical characterisations were carried out in quasi-static compression through a comparative study with or without plates glued to the samples surfaces. The acoustic tests were done with a 2-microphones impedance tube and through air resistivity measurements. The thermal conductivity was investigated by Hot Disk and Laser flash methods, the latter being coupled with thermal expansion and heat capacity measurements. The electromagnetic characterisations were performed in a wide range of frequencies, from 20 Hz to terahertz and far infrared through LRC-meter, network analyser and waveguides, and terahertz and infrared spectrometers. This work allowed studying precisely the influence of different structural parameters such as density and cell size, interconnectivity and shape, as well as tortuosity, on the physical properties of foams. It was finally possible, depending on the cases, to check the validity of existing models, to suggest improvements or limitations, or to observe new phenomena
Guillermic, Reine-Marie. "Propriétés physico-chimiques des mousses : études approfondies sur des mousses modèles et études exploratoires sur de nouvelles mousses." Phd thesis, Université Rennes 1, 2011. http://tel.archives-ouvertes.fr/tel-00573721.
Full textDe, Viguerie Laurence. "Propriétés physico-chimiques et caractérisation des matériaux du ‘sfumato'." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2009. http://tel.archives-ouvertes.fr/tel-00544509.
Full textGaillac, Romain. "Modélisation moléculaire des propriétés physico-chimiques de matériaux microporeux." Thesis, Paris Sciences et Lettres (ComUE), 2018. http://www.theses.fr/2018PSLEC005.
Full textDuring this PhD, we perform studies based on numerical simulation (Ab initio molecular dynamics for instance) of physico-chemical properties for crystalline adsorbents industrially used, like zeolites,or could be used someday, like hybrid materials or MOFs (Metal–Organic Frameworks). We are primarily interested in adsorption properties of molecular fluids and their mixtures but also in the mechanical and thermal behaviors of nanoporous solids. The aim is to reveal relationships between molecular structures and properties, via multiscale modeling, to construct a rational design approach for such materials
Viguerie, Laurence de. "Propriétés physico-chimiques et caractérisation des matériaux du sfumato." Paris 6, 2009. https://tel.archives-ouvertes.fr/tel-00544509.
Full textVerbois, Agnès. "Elaboration d'une nouvelle gamme de matériaux élastomères thermoplastiques par réticulation dynamique (TPE-V) au cours d'une opération d'extrusion." Saint-Etienne, 2001. http://www.theses.fr/2001STET4001.
Full textThe aim of this work is to elaborate a new range of thermoplastic elastomer vulcanizates (TPE-V) by reactive extrusion. TPE-V are elaborated by the process of dynamic vulcanization. By definition dynamic vulcanization consists of vulcanizing an elastomer (in major phase) during its melt mixing with a thermoplastic resin (in minor phase), which results in a final morphology of the material TPE-V where the fully vulcanized elastomer is finely dispersed in the thermoplastic matrix. . . [etc. ]
Kikouama, Odilon. "Propriétés physico-chimiques d'associations matériaux argileux - oligoéléments : formulation et propectives prophylactiques." Paris 11, 2006. http://www.theses.fr/2006PA114815.
Full textClay is natural raw material essentially composed of clayey minerals and which can contain some trace elements likely to participate in the treatment of some affections. The mineralogical composition of seven clay samples taken in Côte d'Ivoire, Guinée, Sénégal, has been determined by several methods of analysis (DRX,FT-IR, ATD, ATG, DSC, ICP). The predominant mineral is kaolinite (Si2Al2O5(OH)4; 47 to 72% in mass). The microbiological control of three among them indicates that they don't present any risk in accordance with the microbiological requirements specified in the monograph of the pharmacopeia european (5. 05). The kinetic study of the release of some trave elements (Cu2+, Zn2+: ICP; Fe2+, Fe3+: spectrophotometry) and of the essential elements (Ca2+, Mg2+: Ionic chromatography) in physico-chemically simulated physiological mediums (MPS: "Mouth, stomach, intestine"; pH, T°, electrolyte) shows that this one is fast (approximately 15min) and is done preferentially in the stomach medium because of its acidity. This release is also done because to the presence of the Na+ ion in the MPS, which replaces the various cations because of the proximity of their ionic rays. We conceived pellets (by extrusion-spheronization) floating in the gastric medium from one of the studied varieties, of polymeric (HPMC, PVP, Eudragit® 30 D) and minerals binders (NaHCO3, Talc). The results obtained show that the pellets have a time of buoyancy of 5 and quantitatively improve the release of the trace elements: Fe2+ (95%), Fe3+ (70%), Zn2+ (60%) versus 40% of Fe2+ and Zn2+; 30% of Fe3+ for the raw clay
Robira, Maxime. "Propriétés physico-chimiques et comportement différé des matériaux cimentaires sous irradiations gamma." Thesis, Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2018. http://www.theses.fr/2018IMTA0115/document.
Full textThe project of Centre Industriel de stockage Géologique or CIGEO supported by Andra (French Agency for Radioactive Waste Management) will allow storing intermediate level and high-level wastes 500 meters deep inconcrete galleries built in an impermeable argillaceous rock. The main objective of this study is to understand the effects of lower dose rate external gamma irradiations on the physical-chemical and hydro-thermo-mechanical behavior of concrete which could be used in the CIGEO structures and elements. A multiscale and multi-physics experimental protocol has been established during this PhD work. Mortar and cement paste specimens have been irradiated in a gamma irradiator (E = 0.667 MeV,LET = 0.23 keV.μm-1) and subsequently subjected to bending and compressive mechanical stress tests. These irradiations have been performed at the ARRONAX cyclotron facility (Saint-Herblain, France). The variations of compressive and bending strength after irradiation have been measured for different materials (humid, dried and carbonated mortar and cement pastes) showing a high decrease of mechanicals properties. Mechanical variations have been explained by the study of physical-chemical evolution of calcium silicate hydrates (C-S-H), the major phase composing the concrete which can be modified under gamma radiation. Microscopic and macroscopic results were successfully compared to explain the evolution of the cementitious materials under low doserate of gamma radiation
Belaidi, Maafa Dahbia. "Etude par chromatographie inverse des propriétés superficielles physico-chimiques de matériaux carbonés." Mulhouse, 2006. https://www.learning-center.uha.fr/opac/resource/etude-par-chromatographie-inverse-des-proprietes-superficielles-physicochimiques-de-materiaux-carbon/BUS4081401.
Full textMy work of thesis had for objective to characterize the superficial physicochemical properties of carbon materials used inverse gas chromatography (IGC) and inverse liquid chromatography (ILC) techniques. These methods were applied to three types of carbon materials: - milled graphites which were obtained by milling with high energy in a Fritsch planetary mill "Pulveriset 5", from a commercial graphite of weak specific surface which was milled for 1 hour, 2 hours, 3 hours, and 4 hours. These milled graphites, serve us as reference solid, in agreement with the approach already recommended by Santini. - Carbon Blacks. Two blacks' types were retained: Industrial carbon blacks. Carbon blacks of recuperation obtained by pyrolysis of pneumatic at ambient pressure. - nanotubes of carbon, got by the company ARKEMA. In the first part, generality of the carbon materials are called back as well as the bases of the analysis of the superficial properties of a solid by the inverse gas chromatography techniques. The used experimental conditions are described. Then these materials are examined by having appeal to the IGC at infinite dilution ( IGC-ID) which delivers information concerning the energy of surface of the studied solid and the IGC at finite concentration (IGC-FC) who gives access to the isotherms of desorption of the molecule probes. A particular attention brought to the estimation of the energy heterogeneousness of their surfaces in terms of distribution functions of the energies of adsorption of an apolar probe n-heptane and the polar probes- isopropanol and the pyridine-. She also allows by comparison of the fonction of experimental distribution with that characteristic of a homogeneous solid to characterize the surface studied by means of an indication of heterogeneousness which is invalid if the surface is homogeneous. Concerning graphite's, it is shown by IGC-ID that the milling of graphites leads the formation of sites of high energy which play an important role in certain applications as the reinforcement of elastomers and an increase of the characteristic superficial nano-roughness of the side surfaces of solids lamellaires. The standards carbon blacks present characteristic in IGC-ID, close relations of those of the graphites of weak surfaces specific. Also the carbon of recuperation present nearby characteristics of those of the standard blacks from the point of view of the dispersives interactions and of the nanomorphology. But, the presence of impurities under the chape of zinc oxide and silica confers them a superior specific potential of interaction. The IGC-FC cornes to confirm and to complete the results obtained by the IGC-ID. The distribution functions of graphites indeed confirm the increase of the number of these sites of high energy according to time of milling. The study of nanotubes by IGC in shown that the distribution functions obtained with the heptane as the probe, are vert' sharply bimodales. If the position of the peak with Iow energy is stable of a sample has the other and nearby of that of the saine peak in the case of graphites, on the other hand, the position of the peak with high energy is very dependent on the sample. This position is credibly connected to the diarneter of the central channel. This hypothesis is in the course of evaluation. The second part is devolved to the feasibility of the study of the adsorption of the iodine in the potassium iodide solution used the inverse liquid chromatography ( ILC). Having reviewed the literature concerning the adsorption of the iodine in aqueous phase on carbons and describes the analysis of surface by ILC, we describe the experimental protocol, the use of a corrosive eluant (the potassium iodide) and the injection of a crenel of a solution of iodine which lifts numerous problems which we were able tb resolve. This indthbd wâs able to be successfully applied to sonie carbon blacks. She allows on one hand to determine the part of the irreversible and reversible adsorption by comparison of the adsorption and desorption areas, and on the other hand to reach the isotherm of desorption and there, to an evaluation of the heterogeneousness of surface. In conclusion, this study allowed us to combine numerous information on the superficial properties of diverse carbons: graphites, carbon blacks and nanotubes. Their comparison allowed us to advance in the understanding of their relative superficial properties in particular for the carbon nanotubes