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Corrosion behavior of nanohybrid titania–silica composite coating on phosphated steel sheet / Akshay Kumar Guin in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 9, N° 1 (01/2012)
[article]
Titre : Corrosion behavior of nanohybrid titania–silica composite coating on phosphated steel sheet Type de document : texte imprimé Auteurs : Akshay Kumar Guin, Auteur ; Sanjay K. Nayak, Auteur ; T. K. Rout, Auteur ; N. Bandyopadhyay, Auteur ; D. K. Sengupta, Auteur Année de publication : 2012 Article en page(s) : p. 97–106 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Corrosion
Revêtements:Peinture
Sol-gel, Procédé
Spectroscopie d'impédance électrochimique
TitaneIndex. décimale : 667.9 Revêtements et enduits Résumé : Corrosion resistance behavior of sol–gel-derived organic–inorganic nanotitania–silica composite coatings was studied. Hybrid sol was prepared from Ti-isopropoxide and N-phenyl-3-aminopropyl triethoxy silane. The structure, morphology, and properties of the coating were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and thermo gravimetric analysis. The corrosion performances of the sol–gel-coated samples were investigated by electrochemical impedance spectroscopy (EIS) and standard salt spray tests. The hybrid coatings were found to be dense, more uniform, and defect free. In addition, the coatings also proved its excellent corrosion protection on phosphated steel sheet. Note de contenu : - EXPERIMENTAL : Preparation of sol–gel solution - IR spectroscopy study - Particle size study - Contact angle measurement - Differential scanning calorimetry (DSC) study - Thermogravimetric analysis (TGA) and differential thermal analysis (DTA) - Surface morphology analysis - Cupping test - Potentiodynamic polarization and electrochemical impedance spectroscopy study - Salt spray test
- RESULTS AND DISCUSSION : FTIR study - Particle size study - Contact angle study - Thermogravimetric study - Surface morphology study - Cupping test - Corrosion resistance study - EIS study - Polarization studyDOI : 10.1007/s11998-011-9321-6 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-011-9321-6.pdf?pdf=button Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=14359
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 9, N° 1 (01/2012) . - p. 97–106[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 14095 - Périodique Bibliothèque principale Documentaires Disponible Effect of acrylation on the properties of waterborne epoxy : evaluation of physicochemical, thermal, mechanical and morphological properties / Sukanya Pradhan in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 15, N° 3 (05/2018)
[article]
Titre : Effect of acrylation on the properties of waterborne epoxy : evaluation of physicochemical, thermal, mechanical and morphological properties Type de document : texte imprimé Auteurs : Sukanya Pradhan, Auteur ; Smita Mohanty, Auteur ; Sanjay K. Nayak, Auteur Année de publication : 2018 Article en page(s) : p. 515-526 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosion
Calorimétrie
Copolymère époxy acrylate
Copolymères -- Synthèse
Formulation (Génie chimique)
Fourier, Spectroscopie infrarouge à transformée de
Morphologie (matériaux)
Résonance magnétique nucléaire
Revêtements -- Analyse
Revêtements en phase aqueuse
ThermogravimétrieIndex. décimale : 667.9 Revêtements et enduits Résumé : The present work addresses the critical requirements for the coating industry such as developing the sustainability of biobased materials and simultaneously achieving a balanced combination of coating properties. In this study, acrylated epoxidized soybean oil (AESO) has been successfully synthesized from epoxidized soybean oil and acrylic acid. Subsequently, AESO was modified using a biobased long chain diacid (Pripol-1009) with the assistance of a water/ethanol blend to form waterborne epoxy acrylate (WBEA). The properties of the cured WBEA with 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane as initiator were studied through spectral analysis, coating properties evaluation, corrosion resistance, and morphological and thermal analysis. The results revealed that WBEA exhibited relatively better mechanical, thermal and corrosion resistance characteristics over cured waterborne epoxy.
Keywords
Waterborne Acrylate Epoxy Pripol-1009Note de contenu : - MATERIALS AND METHODS : Materials - Synthesis of waterborne epoxy (WBE) - Synthesis of waterborne epoxy acrylate (WBEA) - Formulation of coatings
- CHARACTERIZATION : Physicochemical characteristics - Spectral analysis - Swelling and crosslink density study - Coating properties - Morphological analysis
- RESULTS AND DISCUSSION : Physicochemical characteristics - Proton NMR analysis - Differential scanning calorimetry analysis - Fourier transform infrared spectroscopic (FTIR) analysis - Swelling and crosslink density study - Coatings properties - Corrosion resistance - Morphological analysis - Thermogravimetric analysisDOI : 10.1007/s11998-018-0006-7 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-017-0006-7.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30748
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Code-barres Cote Support Localisation Section Disponibilité 20024 - Périodique Bibliothèque principale Documentaires Disponible A review on protective polymeric coatings for marine applications / Shatakshi Verma in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 2 (03/2019)
[article]
Titre : A review on protective polymeric coatings for marine applications Type de document : texte imprimé Auteurs : Shatakshi Verma, Auteur ; Smita Mohanty, Auteur ; Sanjay K. Nayak, Auteur Année de publication : 2019 Article en page(s) : p. 307-338 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion
Epoxydes
Marines (peinture)
PolydiméthylsiloxaneLe polydiméthylsiloxane —[O-Si(CH3)2]n—, ou poly(diméthylsiloxane) selon la nomenclature systématique, communément appelé PDMS ou diméthicone, est un polymère organominéral de la famille des siloxanes souvent présent dans les shampoings. On l'y ajoute pour augmenter le volume des cheveux mais il peut également aller boucher les pores du cuir chevelu et rendre les cheveux gras. C'est une des raisons pour lesquelles se laver les cheveux tous les jours est très déconseillé avec un shampooing contenant des silicones.
Il existe également de l'amodiméthicone, qui est un dérivé du diméthicone.
Le polydiméthylsiloxane est un additif alimentaire (E900), utilisé comme antimoussant dans les boissons (Coca-Cola BlāK).
La chaîne de poly(diméthylsiloxane) forme également la structure de base des huiles et des caoutchoucs silicones.
Revêtements antisalissures:Peinture antisalissures
Revêtements protecteursIndex. décimale : 667.9 Revêtements et enduits Résumé : The main objective of this review is to discuss the recent research on polymer-based surface coatings contributing to the protection against marine biofouling based on the knowledge available in literature, supplemented by means of figures, mechanism illustrations, mathematical models, and equations. A need for studies on the mathematical behavior of such coatings is emphasized, composed of quantitative evaluation of foul-release performance of coatings using mathematical equations of the concerned parameters. Apart from the synthesis of protective polymeric coatings, understanding the relationship between characteristics of coating materials and accompanying foul-release and antifouling mechanism is important. In this regard, efforts have been made to equally evaluate, simulate, and measure the appropriate performance of the coatings. By examining the physicochemical and mechanical properties of the polymers, adhesion behavior has been found to be one of the prerequisites for the success of polymeric coatings for marine applications. The potential development of a broad spectrum of methods used to evaluate the foul-release performance of polymeric coatings depending on adhesion behavior of fouling organisms with the coatings has been discussed. From the analysis of the factors affecting degradation of coatings, environmental interference is declared a key factor for complete degradation of polymeric coatings. This review opens up new research directions to improve the adhesion performance of polymeric coatings for ship hulls designed with tunable viscoelasticity by the incorporation of elastomeric polymers (like polydimethylsiloxane) into stiff polymers (like epoxy resins) with and without the utilization of additives, modifiers, and nano-fillers. In addition, it provides methods to improve the foul-release performance of such coatings that work on adhesion behavior of biofouling species attached to the coating surface. Note de contenu : - POLYMERIC COATINGS FOR MARINE APPLICATIONS : Superhydrophic coatings - Antifouling coatings - Foul-release coatings
- NONFOULING TECHNOLOGY BASED ON (EPOXY RESINS-PDMS) Hybrids : Nonfouling (epoxy resin-PDMS)-unfilled coating systems
- ROLE OF FILLERS AND ADDITIVES IN PDMS-BASED COATINGS : Mathematical evaluation of foul-release performanceDOI : 10.1007/s11998-018-00174-2 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-018-00174-2.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32406
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 2 (03/2019) . - p. 307-338[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20894 - Périodique Bibliothèque principale Documentaires Disponible Simulation-based approach for probing rheology-processing-structure relationships in foam blow molding / A. Kumar in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIV, N° 5 (11/2019)
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Titre : Simulation-based approach for probing rheology-processing-structure relationships in foam blow molding Type de document : texte imprimé Auteurs : A. Kumar, Auteur ; B. Patham, Auteur ; S. Mohanty, Auteur ; Sanjay K. Nayak, Auteur Année de publication : 2019 Article en page(s) : p. 513–531 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bouteilles en matières plastiques
Déformations (mécanique)
Matières plastiques -- Moulage par soufflage
Morphologie (matériaux)
Mousses plastiques
Polyéthylène basse densité
Rhéologie
Simulation par ordinateurIndex. décimale : 668.4 Plastiques, vinyles Résumé : The broad objective of this work was to demonstrate a modelling and simulation framework for foam blow molding using commercially available simulation software. The simulation framework would have to account for the initial morphology of the foam, the relationship between the morphology and the rheological and deformation characteristics of the foam at high temperatures and high strains that are typically encountered during blow molding, and correlate the strains developed during blow molding to the morphological aspects in the resulting blow molded part. These aspects are addressed in this paper using simulations of uniaxial tensile deformation of a virtual representative volume element of a foam microstructure (rendered in DIGIMAT-FE) to derive the nonlinear tensile response of the foam at high temperatures (using ABAQUS). The resulting simulated stress-strain curve is employed to parameterize a nonlinear rheological constitutive equation. These parameters are then employed for the homogenized representation of the foam in the blow molding simulation carried out in B-SIM, a commercially available simulation software for blow molding. The regions where the simulated parison has undergone primarily uniaxial elongation are then mapped back to the expected local foam morphology using the transfer functions derived from the RVE simulations. These steps result in a preliminary and simple demonstration of the simulation framework, and offer a template that can be detailed further with experimental rheological information on actual foamed parisons, and more detailed post-processing algorithms to correlate multiaxial elongations with microstructure. Note de contenu : - INTRODUCTION : Motivation - Foam blow molding process phenomenology - Scope - Objectives -
- APPROACH
- IMPLEMENTATION OF THE SIMULATION FRAMEWORK, PART I : DERIVATION OF RHEOLOGICAL PARAMETERS FOR HOMOGENIZED REPRESENTATION OF FOAM : Derivation of foam nonlinear stress-strain characteristics using RVE simulation - Derivation of foam morphology evolution characteristics using RVE simulation - Foam K-BKZ constitutive parameters
- IMPLEMENTATION OF THE SIMULATION FRAMWORK. PART II : BLOW MOLDING SIMULATION : B-SIM simulation setup - Analysis of B-SIM simulation outputDOI : https://doi.org/10.3139/217.3801 En ligne : https://www.hanser-elibrary.com/doi/pdf/10.3139/217.3801 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33614
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Code-barres Cote Support Localisation Section Disponibilité 21324 - Périodique Bibliothèque principale Documentaires Disponible Synthesis and characterization of waterborne epoxy derived from epoxidized soybean oil and bioderived C-36 dicarboxylic acid / Sukanya Pradhan in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 4 (07/2017)
[article]
Titre : Synthesis and characterization of waterborne epoxy derived from epoxidized soybean oil and bioderived C-36 dicarboxylic acid Type de document : texte imprimé Auteurs : Sukanya Pradhan, Auteur ; Priyanka Pandey, Auteur ; Smita Mohanty, Auteur ; Sanjay K. Nayak, Auteur Année de publication : 2017 Article en page(s) : p. 915-926 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Biomatériaux
Caractérisation
Dimère, Acide
Epoxydes
Polymères -- Synthèse
Polymères en émulsionIndex. décimale : 667.9 Revêtements et enduits Résumé : This study focuses on synthesis of waterborne epoxy (WBE) derived from epoxidized soybean oil (ESO) and its compatibility with water-dispersible curing agent Pripol 1009, which is a bioderived long-chain dimer acid. The reaction parameters involved in the synthesis of WBE from ESO have been optimized based on physicochemical properties like hydroxyl value, epoxy equivalent value and degree of solubility of WBE. The WBE obtained after 5 and 6 h of reaction time was found to be of optimum composition with balanced physicochemical properties. The mechanical, thermal and physicochemical properties of WBE obtained after 6 h of reaction time revealed relatively better performance characteristics as compared to ESO. Note de contenu : - EXPERIMENTAL : Materials and methods - Synthesis of waterborne epoxy (WBE) - Preparation of cured ESO and WBE
- CHARACTERIZATION : Solubility test - Particle size analysis - Storage stability - Solid content - Spectral analysis - Chemical resistance - Water uptake - Swelling and crosslink density determination - Mechanical analysis - Differential scanning calorimetry analysis
- RESULTS AND DISCUSSION : Physicochemical analysis of WBE - Fourier transform infrared spectroscopic (FTIR) analysis - Proton NMR analysis - Mechanical analysis - Differential scanning calorimetry (DSC) analysis - Chemicals resistance - Swelling and crosslink densigy - Water uptakeDOI : 10.1007/s11998-016-9884-3 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-016-9884-3.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28933
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Code-barres Cote Support Localisation Section Disponibilité 19194 - Périodique Bibliothèque principale Documentaires Disponible Synthesis and properties of castor oil-based waterborne polyurethane cloisite 30B nanocomposite coatings / Siva Sankar Pandar in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 2 (03/2017)
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