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Advanced techniques for nanocharacterization of polymeric coating surfaces / Xiaohong Gu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 1, N° 3 (07/2004)
[article]
Titre : Advanced techniques for nanocharacterization of polymeric coating surfaces Type de document : texte imprimé Auteurs : Xiaohong Gu, Auteur ; N.-K. Chang, Auteur ; Diep Nguyen, Auteur ; Y. C. Jean, Auteur ; Jonathan W. Martin, Auteur ; Tinh Nguyen, Auteur ; Li-Piin Sung, Auteur ; Mark R. VanLandingham, Auteur ; Michael J. Fasolka, Auteur ; T.-Y. Wu, Auteur Année de publication : 2004 Article en page(s) : p. 191-200 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Chimie des surfaces
Durée de vie (Ingénierie)
Epoxydes
Fluoropolymères
Microscopie à force atomique
Morphologie (matériaux)
Prévision, Théorie de la
Résistance à l'abrasion
Revêtements organiques
Surfaces -- AnalyseIndex. décimale : 667.9 Revêtements et enduits Résumé : Surface properties of a polymeric coating system have a strong influence on its performance and service life. However, the surface of a polymer coating may have different chemical, physical, and mechanical properties from the bulk. In order to monitor the coating property changes with environmental exposures from the early stages of degradation, nondestructive techniques with the ability to characterize surface properties with micro- to nanoscale spatial resolution are required. In this article, atomic force microscopy has been applied to study surface microstructure and morphological changes during degradation in polymer coatings. Additionally, the use of AFM with a controlled tip-sample environment to study nanochemical heterogeneity and the application of nanoindentation to characterize mechanical properties of coatings surfaces are demonstrated. The results obtained from these nanometer characterization techniques will provide a better understanding of the degradation mechanisms and a fundamental basis for predicting the service life of polymer coatings. DOI : 10.1007/s11998-004-0012-4 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-004-0012-4.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3899
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 1, N° 3 (07/2004) . - p. 191-200[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 000587 - Périodique Bibliothèque principale Documentaires Disponible An integration of microstructure predictions and structural analysis in long-fiber-reinforced composite with experimental validation / Huan-Chang Tseng in INTERNATIONAL POLYMER PROCESSING, Vol. XXXII, N° 4 (08/2017)
[article]
Titre : An integration of microstructure predictions and structural analysis in long-fiber-reinforced composite with experimental validation Type de document : texte imprimé Auteurs : Huan-Chang Tseng, Auteur ; R.-Y. Chang, Auteur ; C.-H. Hsu, Auteur Année de publication : 2017 Article en page(s) : p. 455-466 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composites à fibres -- Moulage par injection
Composites à fibres de verre
Composites à fibres longues
Imagerie tridimensionnelle
Microstructures -- Analyse
Modèles mathématiques
Polypropylène
Prévision, Théorie de la
Simulation par ordinateurIndex. décimale : 668.4 Plastiques, vinyles Résumé : Long fiber-reinforced thermoplastic (LFRT) composites are a very important lightweight material for practical use by the automotive industry because their mechanical performance is superior to that of short fibers. Microstructures of LFRT products, including fiber orientation state and fiber length distribution, strongly affect their mechanical properties and testing. Prior numerical approaches were limited by their inability to analyze many complex flows. Currently, the 3D numerical technology is able to analyze a varying geometry flow. We therefore aim to derive accurate predictions of fiber microstructure in a reliable 3D flow simulation of an injection molded LFRT composite part, with the use of objective fiber orientation and fiber length models. In addition, the microstructure data imported to calculate appropriate mechanical properties effectively improves the prediction accuracy of structural performance for an LFRT part. In such an integrative simulation, the predictive results are compared to related experimental data for the purpose of evaluation. Note de contenu : - THEORETICAL BACKGROUND : Basic governing equations - Fiber orientation equations - Fiber attrition equation
- RESULTS AND DISCUSSION : Microstructure prediction - Micromechanical properties - Structural analysisDOI : 10.3139/217.3377 En ligne : https://drive.google.com/file/d/1YJvbY5H1ckJWNfFMVajUkdhZu6psHL5a/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28902
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXII, N° 4 (08/2017) . - p. 455-466[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19165 - Périodique Bibliothèque principale Documentaires Disponible Analysis of a single screw extruder with a grooved plasticating barrel - Part I : the melting model / José Antonio Avila Alfaro in INTERNATIONAL POLYMER PROCESSING, Vol. XXX, N° 2 (05/2015)
[article]
Titre : Analysis of a single screw extruder with a grooved plasticating barrel - Part I : the melting model Type de document : texte imprimé Auteurs : José Antonio Avila Alfaro, Auteur ; Eberhardt Grünschloß, Auteur ; Stefan Epple, Auteur ; Christian Bonten, Auteur Année de publication : 2015 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Extrudeuse monovis
Matières plastiques -- Extrusion -- Appareils et matériels
Modèles mathématiques
Polymères -- Fusion
Prévision, Théorie de la
Vis barrièreIndex. décimale : 668.4 Plastiques, vinyles Résumé : Single screw extruders with barrier screws, grooved feed zones and grooved melting zones were introduced to the European plastics industry in 1999. These extruders have an improved melting and conveying capacity among other advantages, such as a lower melt temperature, less wear, less torque and less energy consumption. The aim of this paper is to present a mathematical model for predicting the melting rate in this type of extrusion system. Based on the classical melting mechanism observed in conventional extruders, it was possible to study the effect of the geometry of the grooved barrel on the melting rate of a polymer. It was shown that the grooves on the barrel notably increase the melting rate, when compared to conventional single screw extruders. A good agreement between theory and experimental data was found. Note de contenu : - THEORETICAL MODEL : Melting rate in the space between two grooves
- EXPERIMENTS : Model validation - Parameter study
- RESULTS AND DISCUSSION : Solid bed length validation - Melting rate validation - Parameter study - Extruder simulationDOI : 10.3139/217.3021 En ligne : https://drive.google.com/file/d/1ovEnaF589jCnoFhVELhjOll5L4VAA8D8/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23911
in INTERNATIONAL POLYMER PROCESSING > Vol. XXX, N° 2 (05/2015)[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17180 - Périodique Bibliothèque principale Documentaires Disponible Artificial intelligence for electrical percolation of AOT-based microemulsions prediction / Antonio Cid in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 48, N° 6 (11-12/2011)
[article]
Titre : Artificial intelligence for electrical percolation of AOT-based microemulsions prediction Type de document : texte imprimé Auteurs : Antonio Cid, Auteur ; Gonzalo Astray, Auteur ; J. A. Manso, Auteur ; Juan Carlos Mejuto, Auteur ; Oscar Adrian Moldes, Auteur Année de publication : 2011 Article en page(s) : p. 477-483 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Microémulsions
Percolation
Prévision, Théorie de la
Réseaux neuronaux (informatique)
SurfactantsIndex. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Different Artificial Neural Network architectures have been assayed to predict percolation temperature of AOT/i-C8/H2O microemulsions. A Perceptron Multilayer Artificial Neural Network with five entrance variables (W value of the microemulsions, additive concentration, molecular weight of the additive, atomic radii and ionic radii of the salt components) was used. Best ANN architecture was formed by five input neurons, two middle layers (with eleven and seven neurons respectively) and one output neuron. Root Mean Square Errors (RMSEs) are 0.188C (R = 0.9994) for the training set and 0.64 °C (R = 0.9789) for the prediction set. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12616
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 48, N° 6 (11-12/2011) . - p. 477-483[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13463 - Périodique Bibliothèque principale Documentaires Disponible Artificial neural networks for colour prediction in leather dyeing on the basis of a tristimulus system / Malathy Jawahar in COLORATION TECHNOLOGY, Vol. 131, N° 1 (02/2015)
[article]
Titre : Artificial neural networks for colour prediction in leather dyeing on the basis of a tristimulus system Type de document : texte imprimé Auteurs : Malathy Jawahar, Auteur ; Chandra Babu Narasimhan Kannan, Auteur ; Mehta Kondamudi Manobhai, Auteur Année de publication : 2015 Article en page(s) : p. 48-57 Langues : Anglais (eng) Catégories : Couleur
Couleur -- Analyse
Echantillonnage
Essais (technologie)
Prévision, Théorie de la
Qualité -- Contrôle
Réseaux neuronaux (informatique)
Teinture -- Fibres textilesIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Computer-assisted colour prediction and quality control have become increasingly important to the dyeing process in many consumer goods manufacturing industries, including textile and leather. The most challenging aspect concerns dye recipe prediction for the production of the required shade on a given substrate. Computer recipe prediction based on the conventional and widely used Kubelka–Munk model often fails under a variety of conditions. In the present investigation, an attempt has been made to develop an artificial neural network model to predict colour in terms of tristimulus values (X, Y, Z) given the concentration of dyes. An artificial neural network model was trained with 300 pairs of known input vectors, i.e. dye concentrations, and output vectors, i.e. colour parameters, using a backpropagation algorithm. The artificial neural network topology consists of three neurons in the input layer to represent the concentration of dyes, three neurons in the output layer to represent the tristimulus values X, Y, and Z, and five neurons in the hidden layer with a log-sigmoid transfer function. The artificial neural network results showed a good level of colour prediction during the training and testing phase. The results also indicate that the artificial neural network has the potential to give better predictive performance than the conventional Kubelka–Munk model. Note de contenu : - INTRODUCTION : Conventional colour prediction model (the Kubelka-Munk model) - Neural network and colour prediction
- EXPERIMENTAL : Materials - Leather sample preparation - Colour analysis - Database generation for the Kubelka-Munk model - Artificial neural network design
- RESULTS AND DISCUSSION : Conventional colour prediction using the Kubelka-Munk model - ANN design optimisation - Artificial neural network training - Validation of the Kubelka-Munk and artificial neural network modelsDOI : 10.1111/cote.12123 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12123 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22983
in COLORATION TECHNOLOGY > Vol. 131, N° 1 (02/2015) . - p. 48-57[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16810 - Périodique Bibliothèque principale Documentaires Disponible Better computation of fiber-reinforced engine components / Kristin Raschke in KUNSTSTOFFE INTERNATIONAL, Vol. 109, N° 10 (10/2019)
PermalinkCalculation of coating consumption quota for ship painting : a CS-GBRT approach / Henan Bu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 6 (11/2020)
PermalinkCoatings future / Winfried Kreis in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 196, N° 4506 (11/2006)
PermalinkColor prediction of metallic coatings from measurements at common geometries in portable multiangle spectrophotometers / Feng Heng in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 5 (09/2018)
PermalinkColour prediction in wet state - an useful tool for batch correction / Priyanka Dutta in PAINTINDIA, Vol. LXIX, N° 8 (08/2019)
PermalinkColour recipe prediction using and colony algorithm : principle of resolution and analysis of performances / Sabrine Chaouch in COLORATION TECHNOLOGY, Vol. 135, N° 5 (10/2019)
PermalinkConception et qualification élastique de structures multicouches gauches et courbes à base de bois / F. Bos in LES CAHIERS DE RHEOLOGIE, Vol. XIV, N° 1 (09/1995)
PermalinkCost-based process selection for CFRP aerospace parts / Konstantin Horejsi in JEC COMPOSITES MAGAZINE, N° 81 (05-06/2013)
PermalinkCritère utilisant un volume caractéristique dans des structures composites assemblées par boulonnage / Arruck Tragangoon in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 27, N° 3-4 (2e semestre 2017)
PermalinkDesigning for damage tolerance / Andrew T. Rhead in JEC COMPOSITES MAGAZINE, N° 88 (04/2014)
PermalinkDevelopment of erosion equations for removal of organic coating on carbon fiber reinforced polymer surface by plastic abrasive in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 2 (03/2023)
PermalinkDurability of organic-matrix composite materials / Jacques Lacoste in JEC COMPOSITES MAGAZINE, N° 94 (01-02/2015)
PermalinkDyeing recipe prediction of cotton fabric based on hyperspectral colour measurement and an improved recurrent neural network / Jianxin Zhang in COLORATION TECHNOLOGY, Vol. 137, N° 2 (04/2021)
PermalinkEarly predictions of service life / Markus Reil in KUNSTSTOFFE INTERNATIONAL, Vol. 105, N° 11 (11/2015)
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