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Auteur Ica Manas-Zloczower
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Case Western Reserve University - Cleveland - OH - USA
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Compatibilization of titanium dioxide powders with non-polar media : Adsoption of anionic surfactants and its influence on dispersion stability / Martin Arellano in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 68, N° 857 (06/1996)
[article]
Titre : Compatibilization of titanium dioxide powders with non-polar media : Adsoption of anionic surfactants and its influence on dispersion stability Type de document : texte imprimé Auteurs : Martin Arellano, Auteur ; Irene Michel-Haciski, Auteur ; Ica Manas-Zloczower, Auteur ; Donald L. Feke, Auteur Année de publication : 1996 Article en page(s) : p. 103-112 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Absorption
Anions
Dioxyde de titane
Dispersions et suspensions
Pigments inorganiques
Revêtements
SurfactantsIndex. décimale : 667.9 Revêtements et enduits Résumé : The effect of the adsorption of an anionic surfactant (aerosol OT, sodium dodecyl sulfate, sodium dodecyl sulfonate, or sodium dodecyl benzene sulfonate) on the dispersion behavior of some types of titanium dioxide pigments has been studied. Surfactant adsorption isotherms and the kinetics of the adsorption process were linked using a full Langmuir model. Sedimentation experiments were used to assess the dispersibility of the powders in two nonpolar dispersion media (nonane and cyclohexane). Surfactant-modified powders were found to be more dispersible than the untreated powders in these nonpolar media. Experiments were also performed to assess the stability of the surfactant coating to elevated temperatures and exposure to organic solvents. Note de contenu : - METHODS : Determination of the PZC - Aqueous TiO2 suspension stability - Surfactant adsorption - Preparation of surfactant-coated titania powders - Stability of the titania powders in non-polar media - Partitioning of the Titania powders between polar and non-polar phases - Stability of the surfactant coating at elevated temperatures - Surfactant desorption
- RESULTS AND DISCUSSION : Point of zero charge and suspension stability for as-received powders - Surfactant adsorptionPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18365
in JOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 68, N° 857 (06/1996) . - p. 103-112[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003516 - Périodique Bibliothèque principale Documentaires Disponible 003527 - Périodique Bibliothèque principale Documentaires Exclu du prêt Dynamics of filler size and spatial distribution in a plasticating single screw extruder – modeling and experimental observations / N. Domingues in INTERNATIONAL POLYMER PROCESSING, Vol. XXV, N° 3 (07/2010)
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Titre : Dynamics of filler size and spatial distribution in a plasticating single screw extruder – modeling and experimental observations Type de document : texte imprimé Auteurs : N. Domingues, Auteur ; A. Gaspar-Cunha, Auteur ; Jose A. Covas, Auteur ; M. Camesasca, Auteur ; M. Kaufman, Auteur ; Ica Manas-Zloczower, Auteur Année de publication : 2010 Article en page(s) : p. 188-198 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Extrusion (mécanique)
Matières plastiques -- Extrusion:Polymères -- Extrusion
Simulation par ordinateur
Vis d'extrusionTags : 'Vis d'extrusion' 'Distribution spatiale' 'Dynamique de dispersion' 'Modélisation par ordinateur' Index. décimale : 668.9 Polymères Résumé : A model of agglomerate break-up, incorporating both rupture and erosion, is employed to predict the dynamics of filler size distribution in a plasticating single screw extruder. Filler spatial distribution along the extruder length was also ascertained and direct comparison of experimental and computational data proved to be satisfactory. The method was also used to investigate the effect of material properties, operating conditions and extruder geometry on the dynamics of agglomerate dispersion along a single screw extruder. Generally, dispersion levels were primarily governed by the magnitude of the hydrodynamic stresses developed in the extruder and the residence time in the melt. DOI : 10.3139/217.2319 En ligne : https://drive.google.com/file/d/1XmHHPKoqwVuve8PTbeMo4KMiViOsJWXK/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9733
in INTERNATIONAL POLYMER PROCESSING > Vol. XXV, N° 3 (07/2010) . - p. 188-198[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012302 - Périodique Bibliothèque principale Documentaires Disponible Index for simultaneous dispersive and distributive mixing characterization in processing equipment / K. Alemaskin in INTERNATIONAL POLYMER PROCESSING, Vol. XIX, N° 4 (12/2004)
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Titre : Index for simultaneous dispersive and distributive mixing characterization in processing equipment Type de document : texte imprimé Auteurs : K. Alemaskin, Auteur ; Ica Manas-Zloczower, Auteur ; M. Kaufman, Auteur Année de publication : 2004 Article en page(s) : p. 327-334 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 668.9 Polymères Résumé : Computer simulation of agglomerate dispersion and sequential distribution of all particles obtained in the system allows us to evaluate the overall mixing efficiency of processing equipment. Evaluation was based on a specific mixing index, calculated using the Shannon entropies for different size fractions. The index can be tailored to give preference to different particle size distributions, thus relating the quality of mixing to specific properties of the final product. DOI : 10.3139/217.1843 En ligne : https://drive.google.com/file/d/1GwiqG5poJB4kaTQuhKSH2x99UW88XjXG/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3264
in INTERNATIONAL POLYMER PROCESSING > Vol. XIX, N° 4 (12/2004) . - p. 327-334[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 001030 - Périodique Bibliothèque principale Documentaires Disponible Microstructure and tribological properties of TPU/fluoropolymer composites / K. Rohm in INTERNATIONAL POLYMER PROCESSING, Vol. XXXV, N° 5 (11/2020)
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Titre : Microstructure and tribological properties of TPU/fluoropolymer composites Type de document : texte imprimé Auteurs : K. Rohm, Auteur ; M. Amirkhosravi, Auteur ; Ica Manas-Zloczower, Auteur Année de publication : 2020 Article en page(s) : p. 414-421 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alliages polymères
Caractérisation
Fluoropolymères
Microstructures
Polytétrafluoréthylène
Polyuréthanes
Tribologie (technologie)Index. décimale : 668.4 Plastiques, vinyles Résumé : A network of poly(tetrafluoroethylene) (PTFE) microfibers in a thermoplastic polyurethane (TPU) was prepared by melt mixing the TPU with solid PTFE particles. The effect of rotor speed on the fiber dimensions was investigated. Higher shear stress was found to be the critical parameter for producing thinner PTFE fibers, rather than the shear rate imposed by the mixer. Shear stress transfer from the melt to the PTFE crystal results in solid phase plastic deformation, and the efficiency of the deformation depends on the shear stress in the matrix. All of the PTFE fiber/TPU composites show lower coefficients of friction compared with the neat TPU. The magnitude of the coefficient of friction was found to correlate with the interfacial area between PTFE and TPU generated by the microfiber network. However, for macroscale PTFE agglomerates, the reduction in the coefficient of friction is mostly affected by the uneven distribution of PTFE in the bulk and on the molded part surface. Note de contenu : - EXPERIMENTAL : Materials - Composite preparation - Characterization
- RESULTS AND DISCUSSION : Influence of processing on PTFE microstructure - Influence of microstructure on tribological propertiesDOI : https://doi.org/10.3139/217.3977 En ligne : https://drive.google.com/file/d/1faKZFEjfZhbT6skaIV2cH-EFoyYe2ldg/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35063
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXV, N° 5 (11/2020) . - p. 414-421[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22388 - Périodique Bibliothèque principale Documentaires Disponible Modeling of agglomerate dispersion in single screw extruders / N. Domingues in INTERNATIONAL POLYMER PROCESSING, Vol. XXV, N° 3 (07/2010)
[article]
Titre : Modeling of agglomerate dispersion in single screw extruders Type de document : texte imprimé Auteurs : N. Domingues, Auteur ; M. Camesasca, Auteur ; M. Kaufman, Auteur ; Ica Manas-Zloczower, Auteur ; A. Gaspar-Cunha, Auteur ; Jose A. Covas, Auteur Année de publication : 2010 Article en page(s) : p. 251-257 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Matières plastiques -- Extrusion:Polymères -- Extrusion
Matières plastiques, Travail des
Vis d'extrusion simpleTags : 'Vis d'extrusion simple' 'Simulation numérique' Modélisation Dispersion Ecoulement Erosion 'Méthode Monte Carlo' 'Caractérisation de mélange' 'Entropie Shannon' Index. décimale : 668.9 Polymères Résumé : A model for solid agglomerate dispersion in single screw extruders is proposed. The model combines numerical simulations of flow patterns in the metering section of a single screw extruder with a Monte Carlo method of clusters rupture and erosion mediated by a local fragmentation number. Particle size distributions and Shannon entropy are used for mixing characterization. The model is quite general and can be adapted for different polymer-additive systems as well as for different processing equipment. DOI : 10.3139/217.2350 En ligne : https://drive.google.com/file/d/1pt1xnN0O8KC3FsUq5ds-Jezpz3kMA0LQ/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9741
in INTERNATIONAL POLYMER PROCESSING > Vol. XXV, N° 3 (07/2010) . - p. 251-257[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012302 - Périodique Bibliothèque principale Documentaires Disponible Modeling of the torque requirements for the mixing and dispersion of silica into rubber / Y. Y. Law in INTERNATIONAL POLYMER PROCESSING, Vol. XXIX, N° 1 (03/2014)
PermalinkNumerical simulations and experiments in a double-couette flow geometry / M. Teverovskiy in INTERNATIONAL POLYMER PROCESSING, Vol. XV, N° 3 (09/2000)
PermalinkSynergistic effects in thermoplastic polyurethanes incorporating hybrid carbon nanofillers / D. Yuan in INTERNATIONAL POLYMER PROCESSING, Vol. XXXI, N° 5 (11/2016)
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