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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]
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 graphèneIndex. 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 testDOI : 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 : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32427
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 2 (03/2019) . - p. 585-595[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20894 - Périodique Bibliothèque principale Documentaires Disponible Effects of hydrotalcite intercalated with corrosion inhibitor on cathodic disbonding of epoxy coatings / Thi Xuan Hang To in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 12, N° 2 (03/2015)
[article]
Titre : Effects of hydrotalcite intercalated with corrosion inhibitor on cathodic disbonding of epoxy coatings Type de document : texte imprimé Auteurs : Thi Xuan Hang To, Auteur ; Nguyen Thuy Duong, Auteur ; Anh Truc Trinh, Auteur ; Hoang Thai, Auteur ; Dinh Thi Mai Thanh, Auteur ; Siriporn Daopiset, Auteur ; Anothai Boonplean, Auteur Année de publication : 2015 Article en page(s) : p. 375-383 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs
Anticorrosion
Caractérisation
Décollement cathodique (revêtement)
Epoxydes
Essais d'adhésion
Essais de brouillard salin
Hydrotalcites
Revêtements protecteursIndex. décimale : 667.9 Revêtements et enduits Résumé : In this study, zinc aluminum hydrotalcite intercalated with 2-benzothiazolylthio-succinic acid (BTSA) as a container of corrosion inhibitor was prepared and incorporated in an epoxy coating. The HT-BTSA obtained was characterized using infrared spectroscopy and X-ray diffraction. BTSA release from HT-BTSA in 0.5 M NaCl solution was investigated using UV–Vis spectroscopy. The corrosion protection performance of the epoxy coating containing HT-BTSA was evaluated and compared to the pure epoxy coating and the epoxy coating containing HT by cathodic disbonding test, electrochemical impedance spectroscopy, salt spray test, and adhesion measurement. It was shown that the BTSA was intercalated in hydrotalcite and its loading was about 33.5%. The BTSA release from HT-BTSA increased with the pH of the NaCl solution. It was also shown that the presence of HT or HT-BTSA in epoxy coating improved the resistance to cathodic disbonding and the adhesion of the epoxy coating. Corrosion protection performance of epoxy coating containing HT-BTSA was higher than that of epoxy coating containing HT. Note de contenu : - MATERIALS AND METHODS : Materials - Preparation of hydrotalcite - Preparation of hydrotalcite intercalated with BTSA - Preparation of epoxy coatings - Analytical characterizations - BTSA release from HT-BTSA - Electrochemical characterization - Salt spray test - Adhesion measurement
- RESULTS AND DISCUSSION : Characterization of HT-BTSA - Release of BTSA from HT-BTSA - Cathodic disbonding test - Salt spray test - Adhesion measurementsDOI : 10.1007/s11998-014-9642-3 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-014-9642-3.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23661
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Code-barres Cote Support Localisation Section Disponibilité 17119 - Périodique Bibliothèque principale Documentaires Disponible Improvement of adherence and anticorrosion properties of an epoxy-polyamide coating on steel by incorporation of an indole-3 butyric acid-modified nanomagnetite / Anh Truc Trinh in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 3 (05/2016)
[article]
Titre : Improvement of adherence and anticorrosion properties of an epoxy-polyamide coating on steel by incorporation of an indole-3 butyric acid-modified nanomagnetite Type de document : texte imprimé Auteurs : Anh Truc Trinh, Auteur ; Thu Trang Nguyen, Auteur ; Thu Thuy Thai, Auteur ; Thi Xuan Hang To, Auteur ; Xuan Hoan Nguyen, Auteur ; Anh Son Nguyen, Auteur ; Maëlenn Aufray, Auteur ; Nadine Pébère, Auteur Année de publication : 2016 Article en page(s) : p. 489-499 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acier L'acier est un alliage métallique utilisé dans les domaines de la construction métallique et de la construction mécanique.
L'acier est constitué d'au moins deux éléments, le fer, très majoritaire, et le carbone, dans des proportions comprises entre 0,02 % et 2 % en masse1.
C'est essentiellement la teneur en carbone qui confère à l'alliage les propriétés du métal qu'on appelle "acier". Il existe d’autres métaux à base de fer qui ne sont pas des aciers comme les fontes et les ferronickels par exemple.
Anticorrosifs
Anticorrosion
Epoxydes
Essais d'adhésion
Essais de brouillard salin
Métaux -- Revêtements protecteurs
Nanoparticules
Oxyde de fer
PolyamidesUn polyamide est un polymère contenant des fonctions amides -C(=O)-NH- résultant d'une réaction de polycondensation entre les fonctions acide carboxylique et amine.
Selon la composition de leur chaîne squelettique, les polyamides sont classés en aliphatiques, semi-aromatiques et aromatiques. Selon le type d'unités répétitives, les polyamides peuvent être des homopolymères ou des copolymères.Index. décimale : 667.9 Revêtements et enduits Résumé : In this study, synthesized magnetite (Fe3O4) nanoparticles were treated with a corrosion inhibitor, indole-3 butyric acid (IBA) and incorporated in an epoxy-polyamide coating. The coating was applied on a carbon steel substrate. For comparison, coatings without particles or with nontreated Fe3O4 particles were also prepared. The IBA-modified nanomagnetite (IBA–Fe3O4) was characterized by infrared spectroscopy and Zeta potential measurements. The inhibitive action of IBA was shown by electrochemical measurements (polarization curves) performed for a bare carbon steel in 0.1 M NaCl solution containing Fe3O4 or IBA–Fe3O4 nanoparticles. Adherence and anticorrosion properties of the epoxy-based coatings containing Fe3O4 or IBA–Fe3O4 were compared to those of the pure epoxy-polyamide resin by dry and wet adherence measurements and by salt spray test. The results showed significant improvement of the film adherence and higher corrosion protection of the carbon steel in the presence of IBA–Fe3O4. It was concluded that the IBA effect was restricted to the metal/coating interface. Note de contenu : - EXPERIMENTAL : Materials - Synthesis and surface modification of the Fe3O4 nanoparticles - Analytical characterizations - Electrochemical measurements - Differential scanning calorimetry (DSC) - Salt spray test - Adherence tests
- RESULTS AND DISCUSSION : Characterization of the IBA-Fe3O4 nanoparticles - Characterization of the epoxy-polyamide coatings - Corrosion protection performance - Adherence measurementsDOI : 10.1007/s11998-015-9768-y En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-015-9768-y.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26289
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Code-barres Cote Support Localisation Section Disponibilité 18071 - Périodique Bibliothèque principale Documentaires Disponible Influence of curcumin-modified graphene oxide on antibacterial properties of polyurethane coating / Nguyen Thuy Duong in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 18, N° 5 (09/2021)
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Titre : Influence of curcumin-modified graphene oxide on antibacterial properties of polyurethane coating Type de document : texte imprimé Auteurs : Nguyen Thuy Duong, Auteur ; Van Cuong Bui, Auteur ; Bo An Tran, Auteur ; Thanh Thao Phan, Auteur ; Ke Oanh Vu, Auteur ; Anh Son Nguyen, Auteur ; Anh Truc Trinh, Auteur ; Thi Chinh Tang, Auteur ; Thi Xuan Hang To, Auteur Année de publication : 2021 Article en page(s) : p. 1379-1387 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antibactériens
Caractérisation
Curcumine
Essais (technologie)
Oxyde de graphène
Polyuréthanes
Revêtements -- Propriétés physiques
Revêtements organiquesIndex. décimale : 667.9 Revêtements et enduits Résumé : This study aims to prepare antibacterial coatings based on polyurethane and curcumin-modified graphene oxide. Curcumin-modified graphene oxide (GO-CU) as an antibacterial agent was prepared using the adsorption method. GO-CU was incorporated in polyurethane (PU) coatings at concentrations of 0.1 and 0.5 wt%. Synthesized GO-CU was characterized by Fourier transform infrared spectroscopy, UV–Vis spectroscopy, transmission scanning electron microscopy, and zeta potential measurement. Curcumin content in GO-CU was determined by thermogravimetric analysis. Antibacterial properties of GO-CU powder and PU coatings containing GO-CU were investigated by counting the colony-forming unit (CFU) of Escherichia coli (E. coli) strain. The results showed that curcumin was attached on GO-CU surface and curcumin content in GO-CU was about 32.9%. GO-CU provided a higher antibacterial effect against E. coli than GO. The antibacterial efficiency of PU coatings containing 0.1 wt% GO-CU was 85.8%; however, the increase in GO-CU concentration did not significantly increase the antibacterial efficiency of PU coating. Note de contenu : - EXPERIMENTAL : Materials - Modification of graphene oxide by curcumin - Preparation of polyurethane coatings containing GO-CU - Analytical characterization - Antibacterial test of GO-CU - Antibacterial test of PU coatings containing GO-CU
- RESULTS AND DISCUSSION : Characterization of Go-CU - Morphology of PU coating containing GO-CU - Physical properties of PU coating - Antibacterial ability of GO-CU and PU coating loading GO-CU
- Table 1 : Physical properties of coatingsDOI : https://doi.org/10.1007/s11998-021-00502-z En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00502-z.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36440
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Code-barres Cote Support Localisation Section Disponibilité 22991 - Périodique Bibliothèque principale Documentaires Disponible Synthesis of 3-glycidoxypropyltrimethoxysilane modified hydrotalcite bearing molybdate as corrosion inhibitor for waterborne epoxy coating / Thi Xuan Hang To in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 5 (09/2016)
[article]
Titre : Synthesis of 3-glycidoxypropyltrimethoxysilane modified hydrotalcite bearing molybdate as corrosion inhibitor for waterborne epoxy coating Type de document : texte imprimé Auteurs : Thi Xuan Hang To, Auteur ; Nguyen Tuan Anh, Auteur ; Anh Truc Trinh, Auteur ; Bui Van Truoc, Auteur ; Hoang Thai, Auteur ; Dinh Thi Mai Thanh, Auteur ; Siriporn Daopiset, Auteur Année de publication : 2016 Article en page(s) : p. 805-813 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs
Anticorrosion
Epoxydes
Hydrotalcites
MolybdateUn molybdate est une espèce chimique qui contient un oxyanion possédant un atome de molybdène à son nombre d'oxydation maximum de +6. Le molybdène peut former une grande variété d'oxyanions, qui peuvent se présenter comme des structures discrètes ou bien des structures étendues polymérisées, ces dernières ne se trouvant qu'à l'état solide. Les oxyanions de molybdène discrets vont du MoO42–, qu'on trouve par exemple dans le molybdate de sodium Na2MoO4, jusqu'aux très grandes structures telles que le bleu de molybdène [Mo154O462H14·70H2O]14− dit « hétéropolymolybdène ».
Parmi les éléments du groupe 6 du tableau périodique, le molybdène a un comportement voisin de celui du tungstène1 mais très différent de celui du chrome, qui ne forme que les chromates CrO42–, Cr2O72–, Cr3O102– et Cr4O132– qui ont tous une géométrie tétraédrique.
Revêtements en phase aqueuse:Peinture en phase aqueuse
SilanesIndex. décimale : 667.9 Revêtements et enduits Résumé : Zinc aluminum hydrotalcite intercalated with molybdate (HTM) and modified by 3-glycidoxypropyltrimethoxysilane (HTM-GS) was prepared and incorporated into a waterborne epoxy coating. The synthesized HTM-GS was characterized by FTIR, XRD, SEM, and TEM. The inhibitive action of HTM-GS on carbon steel was evaluated using electrochemical measurement and SEM/EDX analysis. The corrosion protection of the waterborne epoxy coating containing HTM-GS was evaluated and compared to that of the pure waterborne epoxy coating and the waterborne epoxy coating containing HTM by salt spray test and adhesion measurement. It was shown that the molybdate was intercalated in the hydrotalcite structure and the molybdate contents in HTM and HTM-GS were 16.0 and 13.2 wt%, respectively. The polarization curves obtained on the carbon steel electrode showed that HTM and HTM-GS are anodic corrosion inhibitors, and their inhibition efficiencies at concentration of 3 g/l were 92.0 and 94.7%, respectively. Additionally, HTM and HTM-GS at concentration of 0.5 wt% improved corrosion resistance and adhesion of waterborne epoxy coatings. Surface modification by 3-glycidoxypropyltrimethoxysilane ameliorated the dispersion of HTM in epoxy matrix and the effect of HTM on protection properties of waterborne epoxy coating. Note de contenu : - MATERIALS AND METHODS : Materials - Preparation of molybdate intercalated hydrotalcite - Modification of HTM by 3-glycidoxypropyltrimethoxysilane - Preparation of waterborne epoxy coatings - Analytical characterization - Electrochemical characterization - Adhesion measurement - Salt spray test
- RESULTS AND DISCUSSION : Characterization of HTM-GS - Corrosion inhibition effect of HTM-GS - Corrosion protection of carbon steel by waterborne epoxy coatings containing HTM-GSDOI : 10.1007/s11998-016-9791-7 En ligne : http://link.springer.com/content/pdf/10.1007%2Fs11998-016-9791-7.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27119
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Code-barres Cote Support Localisation Section Disponibilité 18316 - Périodique Bibliothèque principale Documentaires Disponible Synthesis of conducting PANi/SiO2 nanocomposites and their effect on electrical and mechanical properties of antistatic waterborne epoxy coating / Anh Son Nguyen in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 17, N° 2 (03/2020)
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