An anti-corrosion coating with self-healing function of polyurethane modified by lipoic acid / Zhentao Cai in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 20, N° 2 (03/2023)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 2 (03/2023) . - p. 713-724 Titre : An anti-corrosion coating with self-healing function of polyurethane modified by lipoic acid Type de document : texte imprimé Auteurs : Zhentao Cai, Auteur ; Chunping Li, Auteur ; Daquan Zang, Auteur ; Jin Li, Auteur ; Lixin Gao, Auteur Année de publication : 2023 Article en page(s) : p. 713-724 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosifs Anticorrosion Caractérisation Essais de résilience Polyuréthanes Rayures Revêtement autoréparant Revêtements organiques Revêtements protecteurs Spectroscopie d'impédance électrochimique Index. décimale : 667.9 Revêtements et enduits Résumé : Polyurethanes (PUs) are a polymer material with a wide range of applications and excellent mechanical properties. In this work, a modified polyurethane coating with the self-healing function is developed via the reaction between polytetrahydrofuran (PTMG), 2,4-toluene diisocyanate (TDI) and α-lipoic acid. The coatings are characterized by SEM and FTIR. The protection of the prepared coating for copper in 3 wt.% NaCl solution is investigated by the electrochemical measurements and the surface self-healing tests. The coating has stable protection from corrosion of the copper substrate in corrosive medium and shows a good self-healing ability. The healing behavior in morphology and corrosion resistance can be observed when heated above 60°C. Note de contenu : - Table 1 : The EIS parameters of copper electrodes with different coatings in 3 wt.% NaCl solution - Table 2 : Polarization curve fitting parameters of the coated electrodes immersed in 3 wt.% NaCl solution for 12 days DOI : https://doi.org/10.1007/s11998-022-00703-0 En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00703-0.pdf?pdf=button% [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39314 [article]

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Lower temperature aluminizing and its effect on improving corrosion resistance of iron treated by surface mechanical attrition treatment / Cheng Zhong in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 8, N° 1 (01/2011)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 8, N° 1 (01/2011) . - p. 107-116 Titre : Lower temperature aluminizing and its effect on improving corrosion resistance of iron treated by surface mechanical attrition treatment Type de document : texte imprimé Auteurs : Cheng Zhong, Auteur ; Wenbin Hu, Auteur ; Yiming Jiang, Auteur ; Bo Deng, Auteur ; Jin Li, Auteur Année de publication : 2011 Article en page(s) : p. 107-116 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Aluminiage Anticorrosifs Basses températures Matériaux nanocristallins Revêtement métallique Revêtements protecteurs Traîtements de surface Usure (mécanique) Index. décimale : 667.9 Revêtements et enduits Résumé : An ultrafine-grained surface layer with the average grain size of about 28 nm in the surface layer was fabricated on a pure Fe plate by the surface mechanical attrition treatment (SMAT). Lower temperature aluminizing treatments of the SMAT samples were investigated by scanning electron microscope and X-ray energy dispersive spectroscope. The electrochemical corrosion behavior of the aluminized SMAT sample was studied in 0.05 mol/L Na2SO4 + 0.05 mol/L H2SO4 solution, in comparison with the original SMAT and the coarse-grained sample. The results showed that SMAT had a negative effect on the corrosion resistance of Fe. An aluminized surface layer was formed on SMAT sample by aluminizing treatment at 400°C, which was much lower than that of the conventional aluminizing treatment. A successive lower temperature aluminizing process made the aluminized layer thicker and continuous. The SMAT sample treated by a successive lower temperature aluminizing had much higher corrosion resistance and exhibited passive behavior, which was due to the formation of a protective passive film. DOI : 10.1007/s11998-010-9280-3 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-010-9280-3.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10928 [article]

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