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Anticorrosive coatings / P. A. Sorensen in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 6, N° 2 (06/2009)
[article]
Titre : Anticorrosive coatings : a review Type de document : texte imprimé Auteurs : P. A. Sorensen, Auteur ; Claus Erik Weinell, Auteur ; Kim Dam-Johansen, Auteur ; Søren Kiil, Auteur Année de publication : 2009 Article en page(s) : p. 135-176 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs
Anticorrosion
Liants
PigmentsIndex. décimale : 667.9 Revêtements et enduits Résumé : The main objective of this review is to describe some of the important topics related to the use of marine and protective coatings for anticorrosive purposes. In this context, "protective" refers to coatings for containers, offshore constructions, wind turbines, storage tanks, bridges, rail cars, and petrochemical plants while "marine" refers to coatings for ballast tanks, cargo holds and cargo tanks, decks, and engine rooms on ships. The review aims at providing a thorough picture of state-of-the-art in anticorrosive coatings systems. International and national legislation aiming at reducing the emission of volatile organic compounds (VOCs) have caused significant changes in the anticorrosive coating industry. The requirement for new VOC-compliant coating technologies means that coating manufacturers can no longer rely on the extensive track record of their time-served products to convince consumers of their suitability for use. An important aspect in the development of new VOC-compliant, high-performance anticorrosive coating systems is a thorough knowledge of the components in anticorrosive coatings, their interactions, their advantages and limitations, as well as a detailed knowledge on the failure modes of anticorrosive coatings. This review, which mainly deals with European experience and practice, includes a description of the different environments an anticorrosive coating system may encounter during service. In addition, examples of test methods and standards for determination of the performance and durability of anticorrosive coatings have been included. The different types of anticorrosive coatings are presented, and the most widely applied generic types of binders and pigments in anticorrosive coatings are listed and described. Furthermore, the protective mechanisms of barrier, sacrificial, and inhibitive coatings are outlined. In the past decades, several alternatives to organic solvent-borne coatings have reached the commercial market. This review also presents some of these technologies and discusses some of their advantages and limitations. Finally, some of the mechanisms leading to degradation and failure of organic coating systems are described, and the reported types of adhesion loss are discussed. DOI : 10.1007/s11998-008-9144-2 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-008-9144-2.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5602
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 6, N° 2 (06/2009) . - p. 135-176[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011361 - Périodique Bibliothèque principale Documentaires Disponible A char stratification approach to characterization and quantitative thermal insulation performance of hydrocarbon intumescent coatings / Ying Zeng in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 4 (07/2022)
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Titre : A char stratification approach to characterization and quantitative thermal insulation performance of hydrocarbon intumescent coatings Type de document : texte imprimé Auteurs : Ying Zeng, Auteur ; Claus Erik Weinell, Auteur ; Kim Dam-Johansen, Auteur ; Louise Ring, Auteur ; Søren Kiil, Auteur Année de publication : 2022 Article en page(s) : p. 1033-1043 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Borate de zinc
Caractérisation
Carbonisation
Hydrocarbures
Intumescence (chimie)
Métaux -- Revêtements protecteurs
Polyphosphate d'ammonium
PyrolyseLa pyrolyse est la décomposition ou thermolyse d'un composé organique par la chaleur pour obtenir d'autres produits (gaz et matière) qu'il ne contenait pas. L'opération est réalisée en l'absence d'oxygène ou en atmosphère pauvre en oxygène pour éviter l'oxydation et la combustion (L’opération ne produit donc pas de flamme). Il s'agit du premier stade de transformation thermique après la déshydratation.
Elle permet généralement d'obtenir un solide carboné, une huile et un gaz. Elle débute à un niveau de température relativement bas (à partir de 200 °C) et se poursuit jusqu'à 1 000 °C environ. Selon la température, la proportion des trois composés résultants est différente.
Résistance à la flamme
Revêtements multicouches
Rhéologie
ViscositéIndex. décimale : 667.9 Revêtements et enduits Résumé : To protect structural steel in the event of a hydrocarbon fire, epoxy-based intumescent coatings, which expand to form a multicellular char layer, are increasingly used. Consequently, to improve formulations and understand the performance of such coatings, it is of great industrial and scientific interest to establish relationships between the char properties and the critical heating times of coated steel plates. In this work, a so-called Stratification Parameter (SP) that combines the relative expansions and insulation efficiencies of individual char layers (termed the sponge-like, the macroporous, and the compact phase, respectively), is introduced to characterize the properties of the multilayered intumescent coating char. An approximate linear relationship was revealed between the SP of the char and the fire-resistance performance (i.e., critical times to 400 and 550°C) of the intumescent coating. Furthermore, owing to the mapped-out exponential relationship between the dynamic viscosity minimum and the char appearance, it was discovered that the SP of the char can be effectively used to point out the required dynamic viscosity change of an intumescent coating to form a given char. Finally, results of thermogravimetric analyses suggest that constraining the coating mass loss during char degradation (to less than 28 wt% for the coatings of the present work) may prevent the formation of the less efficient sponge-like phase. The stratification methodology developed can be used to estimate expected thermal insulation properties of non-uniform hydrocarbon intumescent coating chars. Note de contenu : - EXPERIMENTAL SECTION : Coating materials and application - Fire-resistance performance - Rheological measurements of incipient intumescent chars - Thermal degradation of the intumescent coatings
Digital microscope recordings of char structure
- RESULTS AND DISCUSSION : Influence of the char expansion on the critical times - Stratification approach to thermal insulation of char layers - Parameters of interest for manipulating intumescent char properties
- Table 1 : Composition of the series of zinc borate intumescent coatings (in wt%), APP = ammonium polyphosphate, MEL = melamine, ZB = zinc borate. The level of zinc borate remains constant at 5 wt%
- Table 2 : Composition of the series of zinc borate-free intumescent coatings (in wt%), APP = ammonium polyphosphate, MEL = melamineDOI : https://doi.org/10.1007/s11998-021-00591-w En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00591-w.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38033
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Code-barres Cote Support Localisation Section Disponibilité 23574 - Périodique Bibliothèque principale Documentaires Disponible CoaST Maritime Test Centre : an investigation of biofouling propensity / Morten L. Pedersen in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 3 (05/2023)
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Titre : CoaST Maritime Test Centre : an investigation of biofouling propensity Type de document : texte imprimé Auteurs : Morten L. Pedersen, Auteur ; Burak Ulusoy, Auteur ; Claus Erik Weinell, Auteur ; Frederikke B. Zilstorff, Auteur ; Songgeng Li, Auteur ; Kim Dam-Johansen, Auteur Année de publication : 2023 Article en page(s) : p. 857-868 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Encrassement
Essais (technologie)
Evaluation
Revêtements -- Détérioration
Salissures biologiques
Test d'immersionIndex. décimale : 667.9 Revêtements et enduits Résumé : The performance of fouling control coatings (FCC) is evaluated based on static exposure on test sites worldwide. There are different standards concerning the evaluation of the performance of the FCC. However, to the knowledge of the authors, there is not a standardized reporting guideline for how to evaluate the test site in which the FCC is exposed. Several factors such as water conditions, seasonal biofouling, and accessibility of sunlight can vary dependent on placement within or between test sites. This in turn makes it difficult to compare the performance of FCC exposed at different locations within a or at another test site. In this study, an analysis of the CoaST Maritime Test Centre (CMTC) has been performed to investigate how geographical orientation and changes in depth influence the biofouling propensity on coated panels. The investigation showed no statistical significance in the biofouling propensity between panels exposed to different geographical orientations at the CMTC. Similarly, no statistical significance was found between panels placed at different depths at the CMTC. If similar reporting was performed at other test sites, a better basis for comparison of FCC worldwide would be obtained, and this could be achieved with a standardized reporting guideline. Note de contenu : - METHOD : CoaST Maritime Test Centre - Test panels - Evaluation method
- RESULTS AND DISCUSSION : Biofouling environment at the CMTC - The influence of geographical orientation on the biofouling propensity - The influence of depth on the biofouling propensity - Horizontal setup - Standardized reporting for comparability of FCC within and between test sites
- Table 1 : The coverage percentage intervals and the related weighted values for the four biofouling categories
- Table 2 : Investigation of the influence of geographical orientation on biofouling growth
- Table 3 : The significance of the biofouling deviation between the cartridges fourth and fifth row, due to the difference in depthDOI : https://doi.org/10.1007/s11998-022-00707-w En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00707-w.pdf?pdf=button% [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39433
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Code-barres Cote Support Localisation Section Disponibilité 24069 - Périodique Bibliothèque principale Documentaires Disponible Dynamic simulations of a self-polishing antifouling paint exposed to seawater / Søren Kiil in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 74, N° 929 (06/2002)
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Titre : Dynamic simulations of a self-polishing antifouling paint exposed to seawater Type de document : texte imprimé Auteurs : Søren Kiil, Auteur ; Kim Dam-Johansen, Auteur ; Claus Erik Weinell ; Michael Pedersen (S.) ; Santiago Arias Codolar Année de publication : 2002 Article en page(s) : p. 45-54 Note générale : Bibliogr. Langues : Américain (ame) Tags : Autopolissage Protection antisalissure Modèle dynamique Simulation numérique Modélisation Libération Biocide Eau mer Navire Peinture Matériau revêtement Index. décimale : 667.9 Revêtements et enduits Résumé : A mathematical model for a self-polishing antifouling paint exposed to seawater was extended to handle dynamic simulations. The aim has been to investigate, quantitatively, the transient responses of the paint to changes in seawater temperature, pH, concentration of NaCl, and ship speed. The simulation study revealed that polishing and biocide release rates for a paint present on a ship bottom rarely reach stable conditions, because of the slow response of the paint to changes in temperature and ship speed. It was also found that the paint behavior stabilizes more rapidly from a temperature or speed increase than from temperature or speed reductions. These results are essential for the testing of paints on ships and useful information in the development of novel self-polishing antifouling paints. The modeling approach underlying the simulations can be applied to any type of self-polishing antifouling paint provided that sufficient kinetic, solubility, and diffusivity data are available for the pertinent rate steps influencing the paint behavior. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5646
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Code-barres Cote Support Localisation Section Disponibilité 001240 - Périodique Bibliothèque principale Documentaires Disponible Laser diffraction measurements of pigment size distributions of coatings and mill bases: implications of dilution medium and dispersion process parameters / Shicong Luo in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 3 (05/2023)
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Titre : Laser diffraction measurements of pigment size distributions of coatings and mill bases: implications of dilution medium and dispersion process parameters Type de document : texte imprimé Auteurs : Shicong Luo, Auteur ; Claus Erik Weinell, Auteur ; Søren Kiil, Auteur Année de publication : 2023 Article en page(s) : p. 899-917 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Broyeurs à billes
Dioxyde de titane
Dispersions et suspensions
Formulation (Génie chimique)
Granulométrie laser
Microscopie
Oxyde de cuivre
Pigments
Polyacryliques
Qualité -- ContrôleIndex. décimale : 667.9 Revêtements et enduits Résumé : Coating properties, such as gloss, rheology, and exterior durability, are strongly affected by the particle size distribution (PSD) of pigment agglomerates. Consequently, moving from the industrial practice of a maximum agglomerate size evaluation after dispersion (i.e., grindometer readings) to an accurate measurement of the entire PSD, holds a promising potential for quality control, product optimization, and research. The aim of the present work was to develop an analysis procedure, based on laser diffraction, for PSD measurements of coatings. In the experiments, acrylic-based TiO2 or Cu2O predispersions (i.e., mill bases), with variations in the composition and dispersion parameters, were investigated. Results show that the laser diffraction measurements are influenced by the so-called obscuration value of the diluted sample, the equipment-input refractive index values, and the shape assumption for the pigment agglomerates. Furthermore, the unavoidable sample dilution, prior to a measurement, strongly affects the stability of primary particles and agglomerates. When using a mixture of the pertinent binder and solvent, as opposed to the pure solvent only, and taking rheology issues into consideration, solvent shock was avoided and reliable PSDs could be obtained. The new analytical procedure was used on selected dispersions with variations in coating formulations and equipment operational parameters and allowed for precise detections of the developments in PSDs and volume-moment mean diameters. In summary, the principle of laser diffraction, with proper control of the measurement conditions, was demonstrated to be a reliable technique for PSD evaluation of coatings and predispersions. Note de contenu : - EXPERIMENTAL : Raw materials - Predispersion systems investigated - Dispersion instruments - Laser diffraction particle size analyzer - Scanning electron microscope (SEM) - Digital microscope - Fineness of grind gauge
- RESULTS AND DISCUSSION : Pigment size measurements with digital microscopy - Pigment size measurements with electron microscopy - Sensitivity analysis of the user-supplied parameters for the laser diffraction method - Particle shape - Comparison between grind gauge and laser diffraction - PSD measurements of TiO2 - Absence of reagglomeration - Effects on the PSD results of formulation and operational parameters - PSD results of Cu2O obtained using the laser diffraction method
- Table 1 : Overview of particle size measuring techniques
- Table 2 : Details of pigments used in the experiments
- Table 3 : Formulation details of predispersions
- Table 4 : Recommended parameters for the laboratory scale high-speed disk disperser
- Table 5 : Selected (present investigation) and recommended parameter values for the lab-scale, high-speed bead mill
- Table 6 : Details of beads used in the lab-scale, high-speed bead mill
- Table 7 : Equivalent spherical diameter of pigment powders, measured using STEM and subsequent image analysis supported by a python code
- Table 8 : Volume-moment mean diameter of TiO2-HS1 sample for four obscuration valuesDOI : https://doi.org/10.1007/s11998-022-00742-7 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00742-7.pdf?pdf=button% [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39436
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Code-barres Cote Support Localisation Section Disponibilité 24069 - Périodique Bibliothèque principale Documentaires Disponible Marine biofouling resistance rating using image analysis / Morten Pedersen in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 4 (07/2022)
PermalinkMethanol degradation mechanisms and permeability phenomena in novolac epoxy and polyurethane coatings / Ting Wang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 3 (05/2021)
PermalinkOn-line, non-Newtonian capillary rheometry for continuous and in-line coatings production / Shicong Luo in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 3 (05/2021)
PermalinkParallel measurements and engineering simulations of conversion, shear modulus, and internal stress during ambient curing of a two-component epoxy coating / Qiong Li in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 5 (09/2022)
PermalinkSilica aerogel-encapsulated biocide crystals for low-loading antifouling coatings : rheology, water absorption, hardness, and biofouling protection / Tenna Frydenberg in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 3 (05/2023)
PermalinkSimultaneous tracking of hardness, reactant conversion, solids concentration, and glass transition temperature in thermoset polyurethane coatings / Ting Wang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 2 (03/2021)
PermalinkTowards a better understanding of release / Marcel Butschle in EUROPEAN COATINGS JOURNAL (ECJ), (04/2023)
PermalinkWet clay adhesion to antistick coatings : effects of binder type and surface roughness / Andrea Fasano in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 1 (01/2020)
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