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A gas-sensor-based measurement setup for inline quality and process control in polymer extrusion / Michael Aigner in INTERNATIONAL POLYMER PROCESSING, Vol. XXIX, N° 4 (08/2014)
[article]
Titre : A gas-sensor-based measurement setup for inline quality and process control in polymer extrusion Type de document : texte imprimé Auteurs : Michael Aigner, Auteur ; A. Hundeshagen, Auteur ; T. Hinterberger, Auteur ; E. Mayrbäurl, Auteur ; Jürgen Miethlinger, Auteur Année de publication : 2014 Article en page(s) : p. 461-466 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Capteurs chimiques
Chromatographie en phase gazeuse
Détecteurs de gaz
Matières plastiques -- Extrusion
Mesure -- Instruments
Polypropylène
Procédés de fabrication
Solvants organiques
Spectrométrie de masse
TalcIndex. décimale : 668.4 Plastiques, vinyles Résumé : We report on a gas-sensor-based measurement setup for the detection of volatile degradation products directly in the extrusion process. In contrast to available measurement tools, the system is located in the air flow and works independently of the polymer melt flow. Therefore, the sensor can be used also for non-transparent melts with different colors and filler contents. For process validation, the measurement setup was tested offline using selected organic solvents, as well as directly in the extrusion process using talc-filled polypropylene compounds. We show that the amount of lubricants, the shear load, as well as the temperature and the back pressure influence the level of low molecular weight volatile compounds (LMWVOC) and finally the gas-sensor value. Note de contenu : - EXPERIMENTAL : Gas chromatography/mas spectrometry (GC/MS) measurements - Dräger tubes - Gas sensor - Extrusion parameters - Materials - Thermal analysis - Experimental setup
- RESULTS AND DISCUSSION : GC-MS measurements - Gas sensor measurementsDOI : 10.3139/217.2861 En ligne : https://drive.google.com/file/d/1keqc8cxjFdzAW42ICpNV3a33MrEDDO1r/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21825
in INTERNATIONAL POLYMER PROCESSING > Vol. XXIX, N° 4 (08/2014) . - p. 461-466[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16454 - Périodique Bibliothèque principale Documentaires Disponible A generalized 2D output model of polymer melt flow in single-screw extrusion / S. Pachner in INTERNATIONAL POLYMER PROCESSING, Vol. XXXII, N° 2 (05/2017)
[article]
Titre : A generalized 2D output model of polymer melt flow in single-screw extrusion Type de document : texte imprimé Auteurs : S. Pachner, Auteur ; B. Löw-Baselli, Auteur ; M. Affenzeller, Auteur ; Jürgen Miethlinger, Auteur Année de publication : 2017 Article en page(s) : p. 209–216 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Ecoulement bidimensionnel
Etat fondu (matériaux)
Extrudeuse monovis
Fluides non newtoniens
Matières plastiques -- Extrusion
Modèles mathématiques
RhéologieIndex. décimale : 668.4 Plastiques, vinyles Résumé : The multidimensional output-pressure behavior of non-Newtonian fluids in single-screw extrusion can only be determined by using numerical methods. We present two methods which employ mathematical models building on analytic equations developed using an evolutionary heuristic optimization algorithm. Both allow fast and stable calculation of the 2-dimensional throughput–pressure gradient relationship of single-screw extruders, rendering cost-intensive CFD simulations of the output-pressure behavior redundant. A performed error analysis showed that our methods yield good approximations of the numerically determined data. Note de contenu : - STATE OF THE ART
- MODELING : Symbolic regression - Developing analytic equations
- RESULTS AND DISCUSSIONDOI : 10.3139/217.3326 En ligne : https://drive.google.com/file/d/1rlBYGc0AvsIdyuok0sEu3t4-HSmMzKOR/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28500
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXII, N° 2 (05/2017) . - p. 209–216[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18872 - Périodique Bibliothèque principale Documentaires Disponible A global model for closely intermeshing counter-rotating twin screw extruders with flood feeding / Q. Jiang in INTERNATIONAL POLYMER PROCESSING, Vol. XXV, N° 3 (07/2010)
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Titre : A global model for closely intermeshing counter-rotating twin screw extruders with flood feeding Type de document : texte imprimé Auteurs : Q. Jiang, Auteur ; J. L. White, Auteur ; J. Yang, Auteur Année de publication : 2010 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Chlorure de polyvinyle
Extrudeuse bi-vis
Matières plastiques -- Extrusion
Polyéthylène haute densitéTags : 'Chlorure de polyvinyle' 'Polyéthylène haute densité' Extrusion 'Extrusion bi-vis' 'Variation axiale' 'Calcul pression' température' 'Profil fonte' 'Modèles expérimentaux' Simulation Index. décimale : 668.9 Polymères Résumé : A composite model has been developed to simulate the extrusion process for intermeshing counter-rotating twin-screw extruders. An experimentally based melting model, solids conveying model, and new improved metering model, were combined to develop this formulation. The procedure for global design of a flood feed intermeshing counter-rotating twin screw extruder is presented. Illustrative calculations are made for polyvinyl chloride and high density polyethylene in this type of machines with different screw designs. Computations are made for axial variation of the fill factor, pressure, temperature and melting profiles. Simulations were found to match with experimental results well. The model was also applied to scale-up. DOI : 10.3139/217.2333 En ligne : https://drive.google.com/file/d/1U4rY6hxRZw9bsb5Gok-XhlClKb_AayZj/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9738
in INTERNATIONAL POLYMER PROCESSING > Vol. XXV, N° 3 (07/2010)[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 012302 - Périodique Bibliothèque principale Documentaires Disponible Global modeling for single screw extrusion of viscoplastics / A. Lewandowski in INTERNATIONAL POLYMER PROCESSING, Vol. XXXV, N° 1 (03/2020)
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Titre : Global modeling for single screw extrusion of viscoplastics Type de document : texte imprimé Auteurs : A. Lewandowski, Auteur ; Krzysztof J. Wilczynski, Auteur Année de publication : 2020 Article en page(s) : p. 26-36 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Extrudeuse monovis
Matières plastiques -- Extrusion
Modèles numériques
Rhéologie
ViscoplasticitéIndex. décimale : 668.4 Plastiques, vinyles Résumé : An extensive modeling study is presented on viscoplastic flows in the single screw extruder. An effective modeling procedure is developed, and fully three-dimensional Non-Newtonian FEM computations are performed to design the screw and die characteristics which may be implemented into the global model of the process. ANSYS Polyflow software is applied to model these viscoplastic flows. An analysis is performed for the flow with yield stress effects both in the screw and in the die. Screw characteristics and die characteristics are calculated and modeled for various viscoplasticity parameters. The effect of yield stress parameters on the extruder operation has been discussed. Note de contenu : - Yield stress analysis
- Flow simulation
- Die flow
- Screw flow
- Global modelingDOI : https://doi.org/10.3139/217.3866 En ligne : https://drive.google.com/file/d/1gEGPNCMpnqsgxuJnFgWCNtL8jZKznlMa/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33776
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXV, N° 1 (03/2020) . - p. 26-36[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 21578 - Périodique Bibliothèque principale Documentaires Disponible Global modeling of single screw extrusion with slip effects / A. Lewandowski in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIV, N° 1 (03/2019)
[article]
Titre : Global modeling of single screw extrusion with slip effects Type de document : texte imprimé Auteurs : A. Lewandowski, Auteur ; Krzysztof J. Wilczynski, Auteur Année de publication : 2019 Article en page(s) : p. 81-90 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Eléments finis, Méthode des
Etat fondu (matériaux)
Extrudeuse monovis
Fluides non newtoniens
Matières plastiques -- Extrusion
RhéologieIndex. décimale : 668.4 Plastiques, vinyles Résumé : An extensive study is presented on the polymer melt flow with slip effects in a single screw extrusion process. Fully three-dimensional non-Newtonian FEM computations are performed to design the screw pumping characteristics and the die characteristics which may be implemented into the composite model of the process. ANSYS Polyflow software is applied to model the melt flow in the extruder. An analysis is performed for the flow of polymers with slip effects both in the screw (on the screw and barrel surfaces) and in the die. Screw pumping characteristics and die characteristics are calculated and modeled for various power law indices, and various slipping parameters. The effect of slipping on extruder operation is discussed. Note de contenu : - Slip analysis
- Flow simulation
- Die flow
- Screw flow
- Screw pumping characteristics
- Global modelingDOI : 10.3139/217.3653 En ligne : https://www.degruyter.com/document/doi/10.3139/217.3653/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31915
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXIV, N° 1 (03/2019) . - p. 81-90[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20669 - Périodique Bibliothèque principale Documentaires Disponible Groupe Français de Rhéologie - Bulletin N° 128 / Groupe Français de Rhéologie
PermalinkPermalinkImpact of feed opening width and position on PVC extrusion process effectiveness / Janusz W. Sikora in INTERNATIONAL POLYMER PROCESSING, Vol. XXVIII, N° 3 (07/2013)
PermalinkImproved interfacial properties of PA6/DE blends by DE-g-MAH prepared through ultrasound assisted extrusion / W. Bao in INTERNATIONAL POLYMER PROCESSING, Vol. XXIX, N° 3 (07/2014)
PermalinkIn situ assembly of LDPE/PA6 multilayer structure by stirring / P. Pongmuksuwan in INTERNATIONAL POLYMER PROCESSING, Vol. XXXV, N° 1 (03/2020)
PermalinkInfluence of the calendering step on the adhesion properties of coextruded structures / M. C. Serrat in INTERNATIONAL POLYMER PROCESSING, Vol. XXVII, N° 3 (07/2012)
PermalinkInfluence of twin-screw processing conditions on structure and properties of polypropylene – organoclay nanocomposites / T. Domenech in INTERNATIONAL POLYMER PROCESSING, Vol. XXVII, N° 5 (11/2012)
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PermalinkInnovative materials for novel concepts for internal heat exchangers / Annette Rüppel in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIII, N° 4 (08/2018)
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PermalinkL'intelligence artificielle appliquée à la rhéologie et à la mise en œuvre réactive des polymères / Fanny Castéran in L'ACTUALITE CHIMIQUE, N° 456-457-458 (11-12/2020 - 01/2021)
PermalinkInto the process at the speed of light / Dorothea Marquardt in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 10 (10/2018)
PermalinkInvestigation of the effect of filler concentration on the flow characteristics of filled polyethylene melts / G. A. Campbell in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIII, N° 5 (11/2018)
PermalinkInvestigations on blending and foaming behavior of styrehe-ethylene-butylene-styrene/polystyrene blends / R. Banerjee in INTERNATIONAL POLYMER PROCESSING, Vol. XXXII, N° 4 (08/2017)
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