Advanced poly(aniline-aminosalicylic acid) nanofiber functionalized with modified GO environment friendly coatings on steel surfaces with water resistance and long-term active anticorrosion performance / Meng Wang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 2 (03/2022)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 2 (03/2022) . - p. 625-642 Titre : Advanced poly(aniline-aminosalicylic acid) nanofiber functionalized with modified GO environment friendly coatings on steel surfaces with water resistance and long-term active anticorrosion performance Type de document : texte imprimé Auteurs : Meng Wang, Auteur ; Fengjuan Xiao, Auteur ; Longfei Kong, Auteur ; Guyu Yin, Auteur ; Changbiao Ni, Auteur ; Xuefei Zhang, Auteur ; Cheng Qian, Auteur ; Lu Yan, Auteur ; Mengya Li, Auteur ; Jun Li, Auteur ; Kaixi Zhou, Auteur Année de publication : 2022 Article en page(s) : p. 625-642 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acier au carbone Anticorrosifs Anticorrosion Caractérisation Copolymérisation Hydrophobie Métaux -- Revêtements protecteurs Nanofibres Polyacide aniline-aminosalicylique Résistance à l'humidité:Résistance à l'eau Revêtements en phase aqueuse Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : An advanced long-term active corrosion protection coating for carbon steel was proposed using poly(aniline-aminosalicylic acid) nanofiber (PACA-f) covalently linked with cetyltrimethyl ammonium bromide (CTAB)-modified graphene oxide (CTGO). The proton-doped PACA-f functionalized CTGO (PACA-f/CTGO) exhibits excellent hydrophobicity and outstanding water resistance in waterborne epoxy polymer (WEP) coatings and better compatibility with WEP due to the formation of organic–inorganic networks. PACA-f/CTGO composite coating has a self-repairing function and shows superior corrosion resistance on Q235 steel. The surface-corrosion inhibition of PACA-f/CTGO on steel was investigated by molecular dynamics simulation(MD) which confirmed the chemical adsorption of the PACA-f/CTGO on the steel surface. The excellent water resistance and anticorrosion property of PACA-f/CTGO are ascribed to the high hydrophobicity of the hybrid coatings, the formation of intelligent passivation layer after the corrosive medium invading, and the barrier performance of CTGO. Note de contenu : - EXPERIMENTAL SECTION : Materials - Preparation of PACA-f/CTGO composite - Preparation of waterborne anticorrosive coating samples - Molecular dynamics (MD) simulations - Characterization - RESULTS AND DISCUSSION : Morphological studies of CTGO, PACA-f and PACA-f/CTGO composite - Elemental composition and chemical state of the samples - XRD and UV–Vis spectroscopy analyses of PACA-f/CTGO composites - Electrochemical activity - Cross-sectional morphology of coating - Corrosion behavior DOI : https://doi.org/10.1007/s11998-021-00553-2 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00553-2.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37293 [article]

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Anticorrosive properties of a superhydrophobic coating based on an ORMOSIL enhanced with MCM-41-HDTMS nanoparticles for metals protection / Erik Uc-Fernández in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 1 (01/2023)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 1 (01/2023) . - p. 347-357 Titre : Anticorrosive properties of a superhydrophobic coating based on an ORMOSIL enhanced with MCM-41-HDTMS nanoparticles for metals protection Type de document : texte imprimé Auteurs : Erik Uc-Fernández, Auteur ; Jorge González-Sánchez, Auteur ; Alejandro Ávila-Ortega, Auteur ; Yamile Pérez-Padilla, Auteur ; J. Manuel Cervantes-Uc, Auteur ; Javier Reyes-Trujeque, Auteur ; William A. Talavera-Pech, Auteur Année de publication : 2023 Article en page(s) : p. 347-357 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acier au carbone Analyse quantitative (chimie) Angle de contact Anticorrosifs Anticorrosion Caractérisation Energie de surface Hexadécyltriméthoxysilane Hydrophobie Matériaux mésoporeux Métaux -- Revêtements protecteurs Microscopie Nanoparticules Revêtements organiques Revêtements protecteurs Spectroscopie d'impédance électrochimique Surfaces fonctionnelles Index. décimale : 667.9 Revêtements et enduits Résumé : The anticorrosive properties of hexadecyltrimethoxysilane (HDTMS) functionalized MCM-41 silica particles (MCM-41-HDTMS) incorporated into a methyltriethoxysilane (MTES) sol-gel matrix coatings were studied. The MCM-41 particles were synthesized and functionalized with HDTMS, and added to a sol composed of MTES:methanol:NH4OH 7M to create a coating. The materials synthesized with and without MCM-41-HDTMS were deposited, by dip coating, on Cu and Fe sheets, and were physically characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), contact angle, surface energy using the Owens, Wendt, Rabel, and Kaelble (OWRK) method, and by electrochemical impedance spectroscopy (EIS). The addition of the MCM-41-HDTMS to the MTES matrix induced an increase of the contact angle by about 10 degrees with an augment in its dispersive component, caused by a lofty deposition of long carbon chains from HDTMS over the high surface area of the MCM-41 particles, changing from hydrophobic to superhydrophobic materials with a contact angle of 155° for the Cu-MTES-HDTMS sample. EIS results show that the addition of MCM-41-HDTMS increases the charge transfer resistance providing better protection to metals. The results show that with the addition of MCM-41-HDTMS to an MTES matrix it is possible to synthesize superhydrophobic coatings capable of limiting the corrosion degradation process. Note de contenu : - MATERIALS AND METHODS : Materials - Synthesis of MCM-41-HDTMS particles - Synthesis of coatings - Application of the coating - Characterization - DISCUSSION AND RESULTS : Scanning electron microscopy and elemental chemical analysis (SEM-EDS) - Atomic force microscopy (AFM) - Contact angle and surface energy - Electrochemical impedance spectroscopy - Table 1 : Atomic percentages of the main elements present in coatings obtained by EDS analysis - Table 2 : Surface energy of all substrates calculated by OWRK method - Table 3 : Quantitative impedance analysis for Cu, Cu-MTES, and Cu-MTES-HDTMS systems - Table 4 : Quantitative impedance analysis for Fe, Fe-MTES, and Fe-MTES-HDTMS systems DOI : https://doi.org/10.1007/s11998-022-00675-1 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00675-1.pdf?pdf=button% [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38847 [article]

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Anticorrosive properties of the double-layer PANI-(graphene oxide)/epoxy coating in protecting carbon steel in saltwater / Ahmad Diraki in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 3 (05/2023)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 3 (05/2023) . - p. 995-1006 Titre : Anticorrosive properties of the double-layer PANI-(graphene oxide)/epoxy coating in protecting carbon steel in saltwater Type de document : texte imprimé Auteurs : Ahmad Diraki, Auteur ; Sasha Omanovic, Auteur Année de publication : 2023 Article en page(s) : p. 995-1006 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acier au carbone Anticorrosifs Anticorrosion Caractérisation Electrochimie Epoxydes Métaux -- Revêtements protecteurs Oxyde de graphène Polyaniline Revêtements multicouches Revêtements organiques Index. décimale : 667.9 Revêtements et enduits Résumé : The work reports result in improving the anticorrosive properties of a commercial epoxy coating by forming a double-layer coating structure. First, a thin (ca. 5 μm) electrically conductive polyaniline (PANI) coating was wormed directly on the carbon steel (CS) surface, on top of which a thicker (ca. 20 μm) epoxy coating was applied. The inner PANI layer was also loaded with graphene oxide (GO). The resulting anticorrosive properties of the coatings were investigated in 3.5 wt.% NaCl employing electrochemical techniques, while the surface and cross-sectional morphology of the coatings was examined by scanning electron microscopy (SEM). The results showed that the commercial epoxy coating started gradually failing several days after its exposure to the electrolyte, while it took 37 days for larger pores to appear in the PANI/epoxy coating, which then gradually continued to fail. On the other hand, the PANI-GO/epoxy coating maintained its high corrosion resistance, without forming impedance-detectable pores, over the entire testing period (two months). The excellent corrosion protection properties of the PANI-GO/epoxy coating were prescribed solely to the presence of the underlying PANI-GO layer, which represents a better barrier for the transport of hydrated corrosive ions to the CS surface, through the combined action of charge (repulsion of hydrated corrosive anions and iron oxide film formation), surface energy (hydrophobicity), and blocking mechanisms. Note de contenu : - EXPERIMENTAL : Materials - Instrumentation - Sample preparation - Preparation of the coatings - Corrosion measurements - Surface characterization - RESULTS AND DISCUSSION : Physical characterization of the coatings - Anticorrosive properties of the coatings-electrochemical measurements - Long-term corrosion study - Table 1 : Technical characteristics of the profilometer - Table 2 : Corrosion current determined from Tafel measurements recorded on the naked (unprotected) CS surface and the CS surface protected by the three coatings - Table 3 : EEC parameter values obtained by modelling the EIS spectra presented in Fig. 5 DOI : https://doi.org/10.1007/s11998-022-00719-6 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00719-6.pdf?pdf=button% [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39443 [article]

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Corrosion mitigation of carbon steel in acidic and salty solutions using electrophoretically deposited graphene coatings / Asmaa R. Heiba in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 2 (03/2021)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 18, N° 2 (03/2021) . - p. 501-510 Titre : Corrosion mitigation of carbon steel in acidic and salty solutions using electrophoretically deposited graphene coatings Type de document : texte imprimé Auteurs : Asmaa R. Heiba, Auteur ; Fatma A. Taher, Auteur ; Rabab M. Abou Shahba, Auteur ; Nabil A. Abdel Ghany, Auteur Année de publication : 2021 Article en page(s) : p. 501-510 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acier au carbone Anticorrosion Caractérisation Dépôt électrophorétique Métaux -- Revêtements protecteurs Oxyde de graphène Index. décimale : 667.9 Revêtements et enduits Résumé : In the modern metal finishing industry, corrosion protection plays a critical role, with many coatings created to prevent this phenomenon (corrosion) and protect the metals. Nano-coating has of late been used to develop corrosion-resistant metal composites. Recently, layers of graphene-based materials with extraordinary properties have been successfully manufactured and applied through electrophoretic deposition (EPD). This article summarizes work altering the graphene oxide (GO) content, which was prepared using an adapted Hummers' method and then the simultaneous reduction of the GO suspension by the EPD method into graphene nano-coating on carbon steel. Different parameters were optimized, namely applied voltage, deposition time, and GO concentration. Scanning electron microscopy and X-ray diffraction were used to characterize the coatings. The corrosion resistance of these coatings was measured by electrochemical polarization in aqueous solutions under accelerated corrosion conditions. The results show not only that EPD is a simple technique that allows creating a graphene coat on carbon steel from GO suspension, but also that it forms a graphene nano-coating which provides significant protection against corrosion of steel in acidic and salty solutions. Note de contenu : - EXPERIMENTAL : Materials and solutions - Synthesis of GO - Electrophoretic deposition (EPD) of GO - Electrochemical corrosion test - Characterizations - RESULTS AND DISCUSSION : Characterization of synthesized GO - Electrophoretic deposition parameters - CORROSION STUDIES : Weight loss technique - Potentiodynamic polarization technique - Surface examination by scanning electron microscopy (SEM) - Table 1 : The chemical composition of carbon steel electrode used for the present study - Table 2 : Corrosion parameters obtained from potentiodynamic polarization of uncoated and coated C-steel electrodes at different conditions at 25°C DOI : https://doi.org/10.1007/s11998-020-00419-z En ligne : https://link.springer.com/content/pdf/10.1007/s11998-020-00419-z.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35610 [article]

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Corrosion protection of carbon steel using hydrotalcite/graphene oxide nanohybrid / Thuy Duong Nguyen in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 2 (03/2019)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 2 (03/2019) . - p. 585-595 Titre : Corrosion protection of carbon steel using hydrotalcite/graphene oxide nanohybrid Type de document : texte imprimé Auteurs : Thuy Duong Nguyen, Auteur ; Bo An Tran, Auteur ; Ke Oanh Vu, Auteur ; Anh Son Nguyen, Auteur ; Anh Truc Trinh, Auteur ; Gia Vu Pham, Auteur ; Thi Xuan Hang To, Auteur ; Minh Vuong Phan, Auteur ; Thanh Thao Phan, Auteur Année de publication : 2019 Article en page(s) : p. 585-595 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acier au carbone Anticorrosifs Anticorrosion Electrochimie Essais de brouillard salin Hydrotalcites Matériaux hybrides Métaux -- Revêtements protecteurs Oxyde de graphène Index. décimale : 667.9 Revêtements et enduits Résumé : Zinc aluminum hydrotalcite/graphene oxide (HTC-GO) nanohybrid as inhibition additive for organic coatings was prepared using the co-precipitation method. The synthesized HTC-GO was characterized using Fourier-transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy, and thermogravimetric analysis. Surface charge properties of HTC-GO were evaluated with zeta potential measurement. The corrosion inhibition effect of HTC-GO on carbon steel in NaCl solution was investigated using electrochemical methods, energy-dispersive X-ray, and SEM. The effect of HTC-GO on corrosion resistance of epoxy coating applied on carbon steel was evaluated by salt spray test. It was shown that hydrotalcite structures were formed on GO surface, subsequently becoming hydrotalcite/graphene oxide nanohybrid. The results obtained by electrochemical measurements indicate that HTC-GO is an anodic corrosion inhibitor with an inhibition efficiency of about 92% at 1 g/L concentration. The presence of intercalated GO improved the barrier properties and adsorption of HTC-GO on steel surface. The corrosion resistance of epoxy coatings was improved with 1 wt% HTC-GO. Note de contenu : - EXPERIMENTAL : Materials - Preparation of graphene oxide - reparation of HTC and HTC-GO - Coating preparation - Analytical characterization - Electrochemical measurements - Corrosion test - RESULTS AND DISCUSSION : Characterization of HTC-GO - Corrosion inhibition effect of HTC-GO - Salt-spray test DOI : 10.1007/s11998-018-0139-3 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-018-0139-3.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32427 [article]

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Corrosion under insulation / Andreas Hoyer in EUROPEAN COATINGS JOURNAL (ECJ), N° 4 (04/2020)  

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Curable hybrid materials for corrosion protection of steel : development and application of UV-cured 3-methacryloxypropyltrimethoxysilane-derived coatings / Kevin M. Scotland in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 4 (07/2020)  

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Eco-friendly protective coatings based on poly(urethane sulfone amide) dispersions for carbon steel / H. A. Mohamed in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 2 (03/2017)  

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Effets des ruptures et reprises de protection cathodique sur la couche de produits de corrosion des aciers en zone de marnage / M. Jeannin in MATERIAUX & TECHNIQUES, Vol. 101, N° 5/6 (2013)  

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Evaluation of the corrosion protection performance of epoxy coatings containing Mg nanoparticle on carbon steel in 0.1 M NaCl solution by SECM and EIS techniques / Joseph Raj Xavier in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 14, N° 2 (03/2017)  

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Experimental and computational investigations of creep responses of wood/PVC composite members / Tawich Pulgern in INTERNATIONAL POLYMER PROCESSING, Vol. XXIX, N° 3 (07/2014)  

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Facile fabrication of superhydrophobic nanocomposites coating materials using nanoemulsion polymerization technique and its application for protecting the petroleum carbon steel pipelines / M. R. Noor El-Din in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 1 (01/2023)  

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Fundamentals of fusion-bonded epoxy application / David A. Hunter in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 35, N° 4 (04/2018)  

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Improved corrosion protection of acrylic waterborne coating by doping with microencapsulated corrosion inhibitors / Jacob Ress in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 212, N° 4673 (02/2022)  

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Influence des microorganismes acidogènes sur la corrosion d’une infrastructure en acier au carbone en milieu marin à faible marnage / H. Gueuné in MATERIAUX & TECHNIQUES, Vol. 101, N° 5/6 (2013)  

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Influence of nano-silica doping on the growth behavior and corrosion resistance of γ-APS silane films fabricated by electrochemical-assisted deposition / Lixia Yang in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 1 (01/2023)  

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Influence de la protection cathodique sur le comportement électrochimique des couches de corrosion d'acier au carbone in MATERIAUX & TECHNIQUES, Vol. 101, N° 5/6 (2013)  

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Mécanismes de la corrosion des aciers au carbone en zone de marnage / Ph. Refait in MATERIAUX & TECHNIQUES, Vol. 101, N° 5/6 (2013)  

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Mesure de la demande en courant de protection cathodique des structures portuaires : Capteur "CADIP" / Dominique Festy in MATERIAUX & TECHNIQUES, Vol. 101, N° 5/6 (2013)  

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Peintures et vernis. Anticorrosion des structures en acier par systèmes de peinture - partie 6 : Essais de performance en laboratoire - Norme ISO 12944-6 / International Organization for Standardization (Genève, Suisse) / Geneve [Switzerland] : International Organization for Standardization (ISO) (2016)

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