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Preparation, characterization, and analysis of anti-corrosion subsea coatings / X. X. Duan in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 4 (07/2017)
[article]
Titre : Preparation, characterization, and analysis of anti-corrosion subsea coatings Type de document : texte imprimé Auteurs : X. X. Duan, Auteur ; T. Parris, Auteur ; Algy Kazlauciunas, Auteur ; J. Guthrie, Auteur Année de publication : 2017 Article en page(s) : p. 823-827 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosion
Epoxydes
Revêtement -- Séchage:Peinture -- Séchage
Revêtements bi-composant:Peinture bi-composantIndex. décimale : 667.9 Revêtements et enduits Résumé : Within this work, a two-component anti-corrosive epoxy primer formulation, Sigmacoverâ„¢ 280, and its resulting films were prepared and evaluated. The optimum coating time following formulation was extended by adding an appropriate amount of solvent as a controlled thinner. The draw down coating method was identified to be a reproducible and a robust paint film deposition process. Gravimetric analysis, Differential scanning calorimetry (DSC), and through-dry testing were used in the characterization of the curing and drying behavior of each applied primer film. The shortest time for achieving a through-dry state occurred with thinner films cured at the higher temperature, as seen in the film curing/drying. The minimum covercoating time and full cure time of the paint films, cured under the different conditions, were evaluated by means of its dryness, hardness, and curing state studies/characterization. DOI : 10.1007/s11998-016-9889-y En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-016-9889-y.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28924
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 14, N° 4 (07/2017) . - p. 823-827[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19194 - Périodique Bibliothèque principale Documentaires Disponible Preparation of PVA/PU/PUA microcapsules and application in self-healing two-component waterborne polyurethane coatings / Xinmeng Xu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 3 (05/2022)
[article]
Titre : Preparation of PVA/PU/PUA microcapsules and application in self-healing two-component waterborne polyurethane coatings Type de document : texte imprimé Auteurs : Xinmeng Xu, Auteur ; Zhongqun Zhou, Auteur ; Liangrong Qin, Auteur Année de publication : 2022 Article en page(s) : p. 977-988 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs
Anticorrosion
Caractérisation
Microcapsules
Polyacétate de vinyle
Polymères -- Synthèse
Polyurée
Polyuréthanes
Revêtement autoréparant
Revêtements bi-composant
Revêtements en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : It is difficult to produce coatings that have good mechanical and self-healing properties. In this study, polyvinyl alcohol/polyurethane/polyurea (PVA/PU/PUA) microcapsules (MCs) loaded with isophorone diisocyanate (IPDI) as core materials were first prepared by interfacial polymerization in an oil-in-water emulsion using different PVA as an emulsifier. The MCs were then uniformly dispersed in the matrix. Optical microscopy and scanning electron microscopy revealed that the size of MCs decreased as alcoholysis and polymerization degree of PVA increased. Thermogravimetric analysis showed that the MCs prepared with the high polymerization or alcoholysis degree of PVA revealed outstanding thermal stability, and the initial decomposition temperature increased by approximately 100°C compared with IPDI. Furthermore, the self-healing performance of the two-component waterborne polyurethane (2K WPU) coating system containing MCs was investigated. The 2K WPU coatings with 9 wt% PVA/PU/PUA MCs exhibited excellent self-healing, mechanical properties, and corrosion resistance, and indicated a high potential for smart coating. Note de contenu : - EXPERIMENTAL METHODS AND MATERIALS : Materials - Synthesis of PVA solution - Synthesis of MCs - Preparation of self-healing 2K - WPU coatings - Characterization
- RESULTS AND DISCUSSION : Analysis and characterization of MCs - Self-healing performance of 2K WPU
- Table 1 : Thermal weight loss data of MCs and capsule shells
- Table 2 : Film performance of 2K WPU coatings loaded with different types of MCs
- Table 3 : Coating performance of 2K WPU with different MCs contentDOI : https://doi.org/10.1007/s11998-021-00577-8 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00577-8.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38091
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 3 (05/2022) . - p. 977-988[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23605 - Périodique Bibliothèque principale Documentaires Disponible Preparation, properties and application of waterborne hyydroxyl-functional polyurethane/acrylic emulsions in two-component coatings / Guozhang Ma in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 3 (05/2015)
[article]
Titre : Preparation, properties and application of waterborne hyydroxyl-functional polyurethane/acrylic emulsions in two-component coatings Type de document : texte imprimé Auteurs : Guozhang Ma, Auteur ; Taotao Guan, Auteur ; Caiying Hou, Auteur ; Jianbing Wu, Auteur ; Gang Wang, Auteur ; Xuan Ji, Auteur ; Baojun Wang, Auteur Année de publication : 2015 Article en page(s) : p. 505-512 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésion
Caractérisation
Copolymère uréthane acrylique
Copolymères en émulsion
Dureté (matériaux)
Matériaux hybrides
Mouillabilité
Revêtements -- Propriétés mécaniques:Peinture -- Propriétés mécaniques
Revêtements bi-composant:Peinture bi-composantIndex. décimale : 667.9 Revêtements et enduits Résumé : A serious of waterborne hydroxyl-functional polyurethane/acrylic (PUA) emulsions for two-component coatings was prepared by copolymerizing different weight ratios of hydroxyethyl acrylate (HEA)/butyl acrylate (BA) with methyl methacrylate and acrylic-terminated polyurethane dispersion via an emulsion process. The results showed that increasing the weight ratio of HEA/BA led to a decrease in the average particle sizes and a narrowing in the particle size distribution, but an increase in the viscosity of their emulsions. Meanwhile, their films showed increased thermal resistance, adhesion on substrate, tensile strength, and hardness, but decreased water resistance and enhanced wettability. When the emulsions were applied in two-component coatings, their water resistance was greatly improved and the wettability was reduced; in addition, their glass transition temperature, thermal stability, adhesion on substrate, tensile strength, and hardness were further increased. It was suggested that hydroxyl groups of PUA can not only engage in the intramolecular and/or intermolecular hydrogen bonding, but also form covalently crosslinked networks with polyisocyanate in their films. Note de contenu : - EXPERIMENTAL : Materials - Preparation of PUA hybrid emulsions - Application in two-component coatings and preparation of their films - Measurements and characterization
- RESULTS AND DISCUSSION : The performance of PUA hybrid emulsions - The FTIR and thermal behaviors of the films - The water wettability and water absorption of the films - The adhesion of the coatings - The mechanical properties and hardness of the filmsDOI : 10.1007/s11998-014-9647-y En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-014-9647-y.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24174
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 12, N° 3 (05/2015) . - p. 505-512[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 17244 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : A question of reinforcement : Can agglomeration of nanosilica particles in coatings be beneficial ? Type de document : texte imprimé Auteurs : Mesut Eren, Auteur ; Ismail Abay, Auteur ; Sezgin San, Auteur ; Hakan Askun, Auteur ; Murat Orbay, Auteur Année de publication : 2013 Article en page(s) : p. 36-42 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Nanoparticules
Revêtements bi-composant:Peinture bi-composant
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs
SiliceLa silice est la forme naturelle du dioxyde de silicium (SiO2) qui entre dans la composition de nombreux minéraux.
La silice existe à l'état libre sous différentes formes cristallines ou amorphes et à l'état combiné dans les silicates, les groupes SiO2 étant alors liés à d'autres atomes (Al : Aluminium, Fe : Fer, Mg : Magnésium, Ca : Calcium, Na : Sodium, K : Potassium...).
Les silicates sont les constituants principaux du manteau et de l'écorce terrestre. La silice libre est également très abondante dans la nature, sous forme de quartz, de calcédoine et de terre de diatomée. La silice représente 60,6 % de la masse de la croûte terrestre continentale.
Vernis bi-composant
Vernis en phase aqueuseIndex. décimale : 667.9 Revêtements et enduits Résumé : Nanosilica has been added to waterborne 2K PU varnishes and paints to examine its effects on properties. Additions of 5% were beneficial, provided the additive was pre-mixed rather than added in the let-down stage. Silica agglomerates had a different appearance from those reported elsewhere and the silica was preferentially distributed at the top surface, thus increasing its effects on surface properties. Note de contenu : - Problems in formulating waterborne 2K systems
- Issues in the use of nanosilica
- How the test coatings were prepared
- Test procedures summarised
- Some improvement in resistance properties obtained
- Silica changes surface topography significantly
- Nature of the agglomerates considered in detailEn ligne : https://drive.google.com/file/d/1fmYj5AV-B5upiCvndHYcV-u_rftHLYRX/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18763
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 6 (06/2013) . - p. 36-42[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15159 - Périodique Bibliothèque principale Documentaires Disponible
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Titre : Quicker crosslinking : Built-in reactivity in the key to better curing of 2K PU coatings Type de document : texte imprimé Auteurs : Jan Klesing, Auteur Année de publication : 2017 Article en page(s) : p. 38-43 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Brillance (optique)
Essais de résilience
Formulation (Génie chimique)
Polyesters
Polyols
Polyuréthanes
Résistance au jaunissement
Réticulation (polymérisation)
Revêtements -- Finition:Peinture -- Finition
Revêtements bi-composant:Peinture bi-composant
Revêtements en phase aqueuse -- Additifs:Peinture en phase aqueuse -- Additifs
Revêtements en phase aqueuse -- Séchage:Peinture en phase aqueuse -- SéchageIndex. décimale : 667.9 Revêtements et enduits Résumé : Water-based 2K PU paints suffer from slow flash-off and curing times. A new water-borne polyester olyol with higher crosslinking density and isocyanate reactivity was developed. Significant reductions in drying time and initial hardness development were obtained while maintaining all final properties. Note de contenu : - Designing out slow drying in water-borne plus
- Regulatory and performance demands on polyols
- Limitations of catalysis in water-borne systems
- Formulating improved polyester polyols
- Faster drying and improved initial hardness
- Final test values are similar for all coatings
- Excellent blistering resistance and gloss
- Faster drying achieved with no performance losses
- TABLES : 1. Specifications of the polyester emulsions tested - 2. Starting formulation of pigmented 2-pack top coat
- FIGURES : 1. Possible secondary reactions of the hardener component in 2K PU coatings : hydrolysis and formation of polyurea - 2. Concept structure of the catalytically active building blocks - 3. Structural models of the polyester polyol emulsions teste : standard, modification 1 and modification 2 - 4. drying speed comparison for the standard and modified polyols - 5. Comparison of König pendulum hardness development over seven days - 6. Gloss comparisons at both 60° and 20° - 7. Comparison of yellowing resistance after 21 days QUV-A exposureEn ligne : https://drive.google.com/file/d/1IGtoOXmj-qt5P7A6hW2Zhvh6kNph4J-C/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29232
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 10 (10/2017) . - p. 38-43[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19271 - Périodique Bibliothèque principale Documentaires Disponible Radical polyestérifications for 2K systems / Denis Heymans in EUROPEAN COATINGS JOURNAL (ECJ), N° 3 (03/2012)
PermalinkRecent advances in anti-fouling coating technology / Ramesh Tripathi in PAINTINDIA, Vol. LXVI, N° 8 (08/2016)
PermalinkReduce downtime and secure profitability in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 14, N° 2 (2021)
PermalinkResearch progress of waterborne plastic coatings / Tingting Xu in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 206, N° 4620 (05/2016)
PermalinkRheological studies of two component high build epoxy and polyurethane based high performance coatings / Ajit Deka in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 10, N° 3 (05/2013)
PermalinkPermalinkRobust surfaces for kitchen slicers / Christian Krüger in INTERNATIONAL SURFACE TECHNOLOGY (IST), Vol. 8, N° 3 (2015)
PermalinkSelf-healing primers extend protection / Subramanyam V. Kasisomayajula in EUROPEAN COATINGS JOURNAL (ECJ), N° 7-8 (07-08/2018)
PermalinkPermalinkSilica encapsulated tannic acid containing pH triggered smart coating / Debabrata Pal in PAINTINDIA, Vol. LXIX, N° 6 (06/2019)
PermalinkPermalinkSolvent-free rigid 2K polyurethanes for protective coatings / Matthias Wintermantel in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 204, N° 4592 (01/2014)
PermalinkSpherical solid and hollow glass microspheres as functional fillers / Jean-Philippe Curdy in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 205, N° 4610 (07/2015)
PermalinkStar oligomers and hyperbranched polymers in low VOC polyurethane coatings : Part III / J. Huybrechts in SURFACE COATINGS INTERNATIONAL, Vol. 81, N° 5 (05/1998)
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