Eco-friendly silane as corrosion inhibitor for dual self-healing anticorrosion coatings / Jialiang Liu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 19, N° 5 (09/2022)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 19, N° 5 (09/2022) . - p. 1381-1391 Titre : Eco-friendly silane as corrosion inhibitor for dual self-healing anticorrosion coatings Type de document : texte imprimé Auteurs : Jialiang Liu, Auteur ; Dashuai Yan, Auteur ; Zhenhua Zhang, Auteur ; Yanli Wang, Auteur ; Dalei Song, Auteur ; Tao Zhang, Auteur ; Jingyuan Liu, Auteur ; Fei He, Auteur ; Meng Zhang, Auteur ; Jun Wang, Auteur Année de publication : 2022 Article en page(s) : p. 1381-1391 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs Anticorrosion Caractérisation Revêtement autoréparant Revêtements organiques Revêtements protecteurs Silanes Index. décimale : 667.9 Revêtements et enduits Résumé : Corrosion resistance and active protection performance of organic coatings can be improved by incorporation of corrosion inhibitor-loaded nanocontainers. Herein, 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane (FTES) as a green corrosion inhibitor was encapsulated in hollow mesoporous silica (HMS). FTES-loaded HMS (FHMS) was embedded in an epoxy coating on the surface of the magnesium (Mg) alloy. Artificial defect in FHMS-loaded epoxy coating was made by needle punching. The long-term anticorrosion behavior and self-healing properties of the modified coating were evaluated by electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). In all cases, FHMS can enhance corrosion resistance of the epoxy coating. Among all the FHMS-loaded coatings, the coating containing 0.5 wt% FHMS (FHMS-0.5%) still exhibits excellent corrosion protection performance after 2688 h of immersion. Meanwhile, it shows superior self-healing ability in the scratched areas. These are attributed to the fact that FTES released from HMS nanoparticles can interact with the epoxy coating and the Mg alloy substrate. Moreover, FTES silane can also form a crosslinked Si-O-Si network by itself. Note de contenu : - EXPERIMENTAL : Materials - Substrate pretreatment - Preparation of HMS and FHMS - Preparation of coatings - Characterization - RESULTS AND DISCUSSION : Characterization of HMS and FHMS - Self-healing properties of different FHMS coatings - Anticorrosion and self-healing mechanism - Table 1 : Textural data for the HMS and FHMS samples DOI : https://doi.org/10.1007/s11998-022-00608-4 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-021-00608-4.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38277 [article]

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Simultaneous low-salt dyeing and anti-bacterial finishing of cotton fabric with reactive dye and N-halamine / Meng Zhang in COLORATION TECHNOLOGY, Vol. 137, N° 5 (10/2021)  

[article]  inCOLORATION TECHNOLOGY > Vol. 137, N° 5 (10/2021) . - p. 475-483 Titre : Simultaneous low-salt dyeing and anti-bacterial finishing of cotton fabric with reactive dye and N-halamine Type de document : texte imprimé Auteurs : Meng Zhang, Auteur ; Yan Zhang, Auteur ; Ying Liu, Auteur ; Xuehong Ren, Auteur ; Tung-Shi Huang, Auteur Année de publication : 2021 Article en page(s) : p. 475-483 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antibactériens Caractérisation Cationisation Chloration Colorants réactifs Coton Le coton est une fibre végétale qui entoure les graines des cotonniers "véritables"(Gossypium sp.), un arbuste de la famille des Malvacées. Cette fibre est généralement transformée en fil qui est tissé pour fabriquer des tissus. Le coton est la plus importante des fibres naturelles produites dans le monde. Depuis le XIXe siècle, il constitue, grâce aux progrès de l'industrialisation et de l'agronomie, la première fibre textile du monde (près de la moitié de la consommation mondiale de fibres textiles). N-halamine Résistance à la rupture Résistance au lavage sels -- Réduction Sels de sodium Teinture -- Fibres textiles Volumétrie (chimie analytique) Index. décimale : 667.3 Teinture et impression des tissus Résumé : A reactive dye, Novacron Deep Orange S-4R, and an anti-bacterial precursor, 4-(4-(2,2,6,6-tetramethyl-4-piperidinol)-6-chloro-1,3,5-triazinylamino)-benzenesulphonate, both of which are monohalogenated-s-triazine–based compounds, were chosen for the simultaneous dyeing and anti-bacterial finishing of cotton fabric. To effectively reduce the emissions of pollutants and the dosage of sodium sulphate added during dyeing and finishing, a cationisation reagent, 2,3-epoxypropyltrimethylammonium chloride, was used to modify cotton fabric before dyeing and finishing. The cationised cotton fabrics obtained 0.18% active chlorine loadings and good dye depth after the simultaneous dyeing and finishing process with low addition of sodium sulphate. The chlorinated fabrics inactivated all inoculated Staphylococcus aureus (Gram-positive) and Escherichia coli (Gram-negative) within 10 minutes of contact. The treated cotton fabric maintained high breaking strength as well as good washing stability. Note de contenu : - EXPERIMENTAL : Materials - Instruments - Preparation of anti-bacterial dyed cotton fabric with NDO and BTMPT - Chlorination and titration - Anti-bacterial test - Washing stability test - Breaking strength test - Fastness tests - RESULTS AND DISCUSSION : Characterisation of cationised cotton treated with NDO and BTMPT - The effect of cationised cotton treated with EPTMAC on chlorine loadings - The effect of simultaneous process conditions on the chlorine loadings and colour of cationised cotton treated with NDO and BTMPT - Washing stability and breaking strength - Anti-bacterial properties - Fastness properties - Table 1 : The effect of cationisation of cotton fabric DOI : https://doi.org/10.1111/cote.12542 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12542 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36504 [article]

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