Search Results - "Azema, Nathalie"

Surfactant properties of chemically modified chitooligosaccharides and their potential application in bitumen emulsions by Chapelle, Camille, David, Ghislain, Caillol, Sylvain, Negrell, Claire, Catrouillet, Sylvain, le Foll, Myriam Desroches, Azéma, Nathalie

“…Chitooligosaccharides with degree of polymerization from 5 to 15 have been modified with different lipophilic chains, from fatty epoxide to fatty acids. Their…”
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On the “Thixotropic” Behavior of Fresh Cement Pastes by El Bitouri, Youssef, Azéma, Nathalie

“…Thixotropic behavior describes a time-dependent rheological behavior characterized by reversible changes. Fresh cementitious materials often require…”
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Using settling behaviour to study mesostructural organization of cement pastes and superplasticizer efficiency by Autier, Caroline, Azéma, Nathalie, Boustingorry, Pascal

“…•Highlighting influence of organo-mineral interactions on dispersion state of cement suspension.•Characterization of different polycarboxylate efficiency by…”
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Contribution of settling measurements to the study of polycyclic aromatic hydrocarbons’ (PAHs) mobilisation during resuspension of PAHs-associated sediment by Usanase, Gisèle, Azema, Nathalie, Bitouri, Youssef El, Souche, Jean-Claude, Gonzalez, Catherine

“…This paper aims to investigate the effect of the settling behaviour of sediment particles during resuspension on the mobilisation of pollutants such as…”
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Morpho-granular approach to characterize harbour sediments and their agglomeration/dispersion behaviour by Coulon, Fanny, Azéma, Nathalie

“…An exhaustive physico-chemical and morpho-granular characterization of sediments collected in Port-Camargue harbour was investigated to improve marine sediment…”
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Concentrated O/W Emulsion Stability of Non-Ionic Chitosan Oligomer Surfactants Modified by Epoxidized Fatty Chains at pH7: Influence of Emulsification Conditions by Berthalon, Steve, Frugier, Jérémy, Azema, Nathalie, Negrell, Claire, David, Ghislain

“…In this study, chitosan-based surfactants were synthesized by epoxy–amine chemistry to stabilize concentrated O/W emulsions at pH7. Chitosan was first…”
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Correlation between process and silica dispersion/distribution into composite: Impact on mechanical properties and Weibull statistical analysis by Siot, Alexandra, Longuet, Claire, Léger, Romain, Otazaghine, Belkacem, Ienny, Patrick, Caro-Bretelle, Anne-Sophie, Azéma, Nathalie

“…The aim of this study is to propose a methodology for controlling and monitoring particle dispersion at each step of composite manufacturing. Composites with…”
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Settling of mineral aqueous suspensions. Classification and stability prediction by neural networks by Vié, Rémy, Johannet, Anne, Azéma, Nathalie

“…•Classification of mineral aqueous suspensions.•Use neural networks (ANN) to determine prevailing interparticle interactions.•Propose a method based on ANN to…”
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Effect of Plasticizer on Hydration and Rheological Behavior of Cement Pastes by El Bitouri, Youssef, Azéma, Nathalie, Le Saoût, Gwenn, Lauten, Rolf Andreas, De Weerdt, Klaartje

“…Lignosulfonate-based admixtures (LS) obtained from sulfite pulping processes were the first dispersants added as a water-reducer to concrete. Less effective…”
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Organo-modified montmorillonite/poly(ɛ-caprolactone) nanocomposites prepared by melt intercalation in a twin-screw extruder by Labidi, Sami, Azema, Nathalie, Perrin, Didier, Lopez-Cuesta, José-Marie

“…Nanocomposites based on biodegradable poly(ɛ-caprolactone) organo-modified clay have been prepared by melt intercalation using a twin-screw extruder. The screw…”
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Stability parameters for mineral suspensions: Improving the dispersion of fillers in thermoplastics by Lafaurie, Arnaud, Azema, Nathalie, Ferry, Laurent, Lopez-Cuesta, José-Marie

“…The study of the stability of mineral suspensions using Hansen solubility parameters (HSP) has been developed to predict and optimize the dispersion of mineral…”
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Influence of the surface modification of alumina nanoparticles on the thermal stability and fire reaction of PMMA composites by Cinausero, Nicolas, Azema, Nathalie, Cochez, Marianne, Ferriol, Michel, Essahli, Mohamed, Ganachaud, François, Lopez-Cuesta, José-Marie

“…Nanometric aluminum oxide particles were modified by phosphonic acid‐based oligomers of aromatic polyester, polyether, or polydimethylsiloxane (PDMS). The…”
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Effect of Excessive Bleeding on the Properties of Cement Mortar by Abadassi, Mimoune, El Bitouri, Youssef, Azéma, Nathalie, Garcia-Diaz, Eric

“…The bleeding of cementitious materials corresponds to the settlement of the granular skeleton accompanied by the accumulation of water at the surface (bleed…”
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Mesostructure evolution of cement pastes with addition of superplasticizers highlighted by dispersion indices by Autier, Caroline, Azema, Nathalie, Taulemesse, Jean-Marie, Clerc, Laurent

“…One of the parameters that condition the workability of concrete is the dispersion state of cement paste. Water trapped into the agglomerates does not…”
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Synthesis of phosphonated comb-like copolymers and evaluation of their dispersion efficiency on CaCO 3 suspensions. Part I: Effect of an increasing phosphonic acid content by Tramaux, A., Azema, Nathalie, David, Ghislain, Negrell, C., Poulesquen, A., Haas, J., Remond, S.

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Impact of modified alumina oxides on the fire properties of PMMA and PS nanocomposites by Cinausero, Nicolas, Azema, Nathalie, Cuesta, José-Marie Lopez, Cochez, Marianne, Ferriol, Michel

“…Grafting of ethylene glycol methacrylate phosphate (EGMP) monomer polymerized from alumina nanoparticles has been performed in order to confer a better thermal…”
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Study of heterogeneous suspensions: A new quantitative approach coupling laser granulometry and UV–vis spectrophotometry by Bayle, Sylvie, Azéma, Nathalie, Berho, Catherine, Pouet, Marie-Florence, Lopez-Cuesta, Jose-Marie, Thomas, Olivier

“…The aim of this work is to propose a complementary approach, in order to study heterogeneous fractions from papermaking industries, strongly differing in…”
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Impact of modified alumina oxides on the fire properties of PMMA and PS nanocomposites by Cinausero, Nicolas, Azema, Nathalie, Lopez-Cuesta, José-Marie, Cochez, Marianne, Ferriol, Michel

“…Grafting of ethylene glycol methacrylate phosphate (EGMP) monomer polymerized from alumina nanoparticles has been performed in order to confer a better thermal…”
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Effect of polycarboxylate superplasticizer on hydration and properties of belite ye’elimite ferrite cement paste by Barneoud-Chapelier, A., Le Saout, G., Azéma, N., El Bitouri, Y.

“…•A polycarboxylate superplasticizer (PCE) is compatible with the BYF cement paste for low dosages.•PCE induces a retarding effect on the hydration of BYF…”
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Wastewater suspended solids study by optical methods by Azema, N, Pouet, M.-F, Berho, C, Thomas, O

“…The aim of the paper is to compare two optical methods (UV spectrophotometry and laser granulometry) for a better knowledge of the behaviour of wastewater…”
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