Case-8 : Epoxy phenolic coatings / K. Raghuraman in PAINTINDIA, Vol. LXXI, N° 7 (07/2021)  

[article]  inPAINTINDIA > Vol. LXXI, N° 7 (07/2021) . - p. 124-125 Titre : Case-8 : Epoxy phenolic coatings : Painting application : Problem-solving strategies - 8 Type de document : texte imprimé Auteurs : K. Raghuraman, Auteur Année de publication : 2021 Article en page(s) : p. 124-125 Langues : Anglais (eng) Catégories : Copolymère phénolique époxy Expertises Revêtements -- Défauts:Peinture -- Défauts Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : Phenolic resin based metal decoration coatings and lacquers were sold in a big way one pack, then came epoxy phenolic coatings one pack, both of them thermal cure. Phenolic based coatings though having better chemical and resistance, had few issues on mechanical properties then came fortification of the same using epoxy resin. As of now, from performance point and price point of view, epoxy phenolic coatings has come to stay both in one pack and two pack. En ligne : https://drive.google.com/file/d/1mT0YqzhkzREGGoi9qeveZS2qCBlhjmyh/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36320 [article]

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Environmentally friendly coatings for tinplate cans in contact with synthetic food media / E. Almeida in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 1, N° 2 (04/2004)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 1, N° 2 (04/2004) . - p. 103-109 Titre : Environmentally friendly coatings for tinplate cans in contact with synthetic food media Type de document : texte imprimé Auteurs : E. Almeida, Auteur ; J. M. Puente, Auteur ; J. M. Bastidas, Auteur ; N. Mora, Auteur ; N. De Cristofaro, Auteur ; M. R. Costa, Auteur Année de publication : 2004 Article en page(s) : p. 103-109 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs Anticorrosion Chromates Colorimétrie Conserves Copolymère phénolique époxy Emballages Emballages métalliques Produits chimiques -- Suppression ou remplacement Résistance aux taches Spectroscopie de photoélectrons Index. décimale : 667.9 Revêtements et enduits Résumé : This article presents the materials, methods, and main results obtained in an experimental study which was aimed at the development of alternative environmentally friendly pretreatments to chromium for tinplate food can applications. A commercial tinplate was used as substrate. Chromium, titanium, zirconium, cerium, and oxalate-based pretreatments were studied. The characterization of the pretreated tinplate specimens was carried out using scanning electron microscopy (SEM), energy dispersive X-ray (EDX), and X-ray photoelectron spectroscopy (XPS) techniques. The corrosion behavior of the pretreatments was evaluated using electrochemical measurements and exposure tests in several synthetic media. The results obtained led to the conclusion that, among the different pretreatments studied, the best performance was obtained with titanium and cerium compounds. DOI : 10.1007/s11998-004-0004-4 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-004-0004-4.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3955 [article]

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Morphology and photoluminescence properties of phenolic epoxy resin coating on KH550-modified SrAl2O4: Eu2+, Dy3+ powder in the presence of triarylsulfonium hexafluoroantimonate / Jing Li in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 6 (11/2016)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 13, N° 6 (11/2016) . - p. 1075-1082 Titre : Morphology and photoluminescence properties of phenolic epoxy resin coating on KH550-modified SrAl2O4: Eu2+, Dy3+ powder in the presence of triarylsulfonium hexafluoroantimonate Type de document : texte imprimé Auteurs : Jing Li, Auteur ; Mingqiao Ge, Auteur ; Yanan Zhu, Auteur ; Zhi Chen, Auteur Année de publication : 2016 Article en page(s) : p. 1075-1082 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Copolymère phénolique époxy Epoxydes Phénoplastes Phosphore Photoluminescence Poudres Triarylsulfonium hexafluoroantimonate Index. décimale : 667.9 Revêtements et enduits Résumé : In this study, the amino silane coupling agent (KH550)-modified SrAl204: Eu2+, Dy3+ phosphor powder coated with phenolic epoxy resin (EOCN) in the presence of triarylsulfonium hexafluoroantimonate catalyst was prepared using the combination of organic–inorganic composite dip-coating and UV curing coating methods. The results of SEM, TEM, and FTIR showed that the organic coating was a layer of compact membrane with a thickness of 20–50 nm, which can be named silane-modified epoxy monomer generated by the KH550 and the EOCN. Furthermore, it was observed that afterglow and spectrum properties of the coated phosphor powder had good long-afterglow luminescence properties, and revealed two emission peaks at 435 nm and 520 nm under the same excitation wavelength of 360 nm, respectively. More interesting, the emitting color of the coated sample was located in the area of cyan light on CIE1931 chromaticity diagram, which led to a slight blue shift rather than the yellow–green color of the pure SrAl204: Eu2+, Dy3+ phosphor powder. Note de contenu : - EXPERIMENTAL METHODS AND MATERIALS : Materials - Synthesis of SrAl2O4: Eu2+, Dy3+ phosphor powder - Coating procedure - Photochemical reactions - Characterization - RESULTS AND DISCUSSION : Surface morphology analysis - FTIR spectroscopy analysis - Afterglow decay properties - PL characteristics - Photochromic properties DOI : 10.1007/s11998-016-9826-0 En ligne : http://link.springer.com/content/pdf/10.1007%2Fs11998-016-9826-0.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27265 [article]

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A review of high-quality epoxy resins for corrosion-resistant applications / Shams Anwar in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 21, N° 2 (03/2024)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 21, N° 2 (03/2024) . - p. 461-480 Titre : A review of high-quality epoxy resins for corrosion-resistant applications Type de document : texte imprimé Auteurs : Shams Anwar, Auteur ; Xianguo Li, Auteur Année de publication : 2024 Article en page(s) : p. 461-480 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs Anticorrosion Chimie analytique Composites à fibres de carbone Copolymère phénolique époxy Copolymère urushiol formaldéhyde Electrochimie Oxyde de graphène Revêtements -- Détérioration Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : Corrosion is a significant challenge in many practical applications, leading to the deterioration of metal infrastructure and equipment. A literature review indicates that various epoxy resins (ERs) and epoxy phenolic resins (EPRs) based coatings are available and are effectively applied on steel and aluminum surfaces for protection against a corrosive environment. The corrosion-resistant performance of ERs and EPRs can be further improved by incorporating numerous chemical compounds through improved bonding, such as inorganic compounds and carbon-based materials, e.g., zinc oxide (ZnO), titanium dioxide (TiO2), silicon dioxide (SiO2), carbon fiber, carbon nanotube (CNTs) and graphene oxide (GO). Surface heterogeneity (surface pores) of coatings contributes to reduced corrosion protection as corrosion species can diffuse to these inconsistencies and break the coating structure of the organic coating. However, after over a hundred years of research and development, the degradation/failure mechanism of organic coatings is still under study. This paper provides an overview of the current state-of-the-art knowledge of the numerous protective organic coatings and coating approaches and examines coating performance and mechanism for the coating degradation and failure in a corrosive environment. Finally, a summary is presented on the understanding of the mechanisms and challenges associated with, and critical factors influencing, coating durability and predictive formulation against coating damage. Note de contenu : - DEGRADATION MECHANISM OF ORGANIC COATINGS : Ionic migration - Conduction route development FUNDAMENTAL OF EPOXY RESINS (ERS) : Bisphenol ERs - Cycloaliphatic ERs - Novolac ERs - Trifunctional and tetrafunctional ERs - Halogenated ERs - Fundamentals of epoxy phenolic resins (EPRs) - EPOXY-BASED POLYMER COMPOSITES : Inorganic polymer composites - Thermoplastic polymer composites - Carbon fiber composites - Carbon nanotube composites - Graphene oxide (GO) with urushiol-formaldehyde composites - CORROSION-RESISTANT EPOXY RESIN COATINGS - FUTURE RESEARCH AND RECOMMENDATIONS DOI : https://doi.org/10.1007/s11998-023-00865-5 En ligne : https://drive.google.com/file/d/1UZvCznuLdXEbcwwUikB0OJiVBulmBaw2/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40770 [article]

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Synthesis and characterization of ethylenediamine-modified F-44 phenolic epoxy fiber / Juan Wu in INTERNATIONAL POLYMER PROCESSING, Vol. 39, N° 3 (2024)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. 39, N° 3 (2024) . - p. 336-344 Titre : Synthesis and characterization of ethylenediamine-modified F-44 phenolic epoxy fiber Type de document : texte imprimé Auteurs : Juan Wu, Auteur ; Mingli Jiao, Auteur ; Hao Wang, Auteur ; Keke Li, Auteur ; Muen Yang, Auteur ; Pengyu Li, Auteur ; Kai Yang, Auteur Année de publication : 2024 Article en page(s) : p. 336-344 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Caractérisation Copolymère phénolique époxy Ethylènediamine Fibres textiles -- Propriétés mécaniques Fibres textiles synthétiques Filature à sec Matériaux -- Modifications chimiques Mesure Index. décimale : 668.4 Plastiques, vinyles Résumé : F-44 phenolic epoxy fibers were produced through high-temperature dry spinning utilizing F-44 phenolic epoxy resin as the base material, combined with n-butanol and ethylenediamine (EDA) as the curing agent. The fibers were subsequently analyzed for their structural, thermal stability, microstructural, and mechanical properties using techniques such as Fourier transform infrared spectroscopy, micro-infrared imaging, thermogravimetric analysis, nuclear magnetic resonance, scanning electron microscopy, and fiber strength testing. The limitations of phenolic resins, including high brittleness, poor toughness, and low elongation at break, restrict their potential applications, necessitating modifications to broaden their utility. Research findings indicate that modifying EDA induces a ring-opening reaction of epoxy groups, thereby enhancing the resin’s structure and improving the thermal stability and mechanical properties of fibers. The thermal stability and mechanical strength of the fibers were optimized at an EDA concentration of 2.0 wt% and curing time of 30 min, resulting in a tensile strength of 105 MPa and an elongation at break of 27.6 %. Note de contenu : - EXPERIMENTAL : Raw materials - Preparation of as-spun fibers - Preparation of cured fibers - MEASUREMENTS AND CHARACTERIZATION - RESULTS AND DISCUSSION : FTIR - Microscopic infrared analysis - 13C nuclear magnetic resonance Spectra (NMR) - Thermogravimetric analysis (TGA) - Scanning electron microscopy (SEM) - Mechanical property analysis DOI : https://doi.org/10.1515/ipp-2023-4465 En ligne : https://drive.google.com/file/d/1Z6b5ZezJS2Q2NNhS9HFGRMYB3kOIStLT/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40875 [article]

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