Preparation and antiaging performance of urushiol-titanium polymer/a-zirconium phosphate composite coatings / Guocai Zheng 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. 535-543 Titre : Preparation and antiaging performance of urushiol-titanium polymer/a-zirconium phosphate composite coatings Type de document : texte imprimé Auteurs : Guocai Zheng, Auteur ; Pingfei Wu, Auteur ; Xiaoxiao Zheng, Auteur ; Fencai Lin, Auteur ; Qi Lin, Auteur ; Yanlian Xu, Auteur Année de publication : 2023 Article en page(s) : p. 535-543 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Anticorrosion Caractérisation Composites Essais accélérés (technologie) Phosphate de zirconium Polymères organiques-inorganiques Revêtements -- Propriétés mécaniques Revêtements organiques Revêtements protecteurs Index. décimale : 667.9 Revêtements et enduits Résumé : Anti-corrosion coatings often fail due to aging effects. Therefore, taking advantage of the positive effects of multilayer structure of a-zirconium phosphate (α-ZrP) on the anti-aging properties of coatings, organic–inorganic composite materials based on a-ZrP were synthesized. Firstly, a-ZrP was synthesized by a hydrofluoric acid precipitation method. Then, CT-ZrP was prepared by a-ZrP, pre-intercalated successively with cholamine and cetyltrimethylammonium bromide (CTAB). The synthesized CT-ZrP was then used for synthesizing urushiol-titanium polymer/ZrP composite coatings (M-ZrP) through intercalation. The results of XRD, TEM, and FTIR proved the successful intercalation of α-ZrP and the loss of layering M-ZrP composite coatings in the process of exfoliation. TG results showed that the thermal stability of M-ZrP3 (3 wt% CT-ZrP) was higher than that of urushiol-titanium polymer (UTP). After 1000 h of accelerated aging, 3 wt% of CT-ZrP could significantly improve the anti-aging property of the UTP coating, and the maximum rate of gloss loss was the lowest (5.9%). Note de contenu : - INTRODUCTION : Experimental - Preparation of a-ZrP - Preparation of CA-ZrP - Preparation of CT-ZrP - Preparation of M-ZrP - General characterization - Mechanical measurement - Accelerated aging test - RESULTS AND DISCUSSION : Morphological and structural analyses - Morphology of M-ZrP3 nanocomposite - Thermal stabilities of nanocomposite coatings - Antiaging performance of nanocomposite coatings - Mechanical properties of nanocomposite coatings - Table 1 : TGA data of UTP and M-ZrP3 - Table 2 : Elemental composition of M-ZrP3 coating before accelerated aging - Table 3 : Elemental composition of M-ZrP3 coating after accelerated aging - Table 4 : Mechanical properties of coatings DOI : https://doi.org/10.1007/s11998-022-00686-y En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00686-y.pdf?pdf=button Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39297 [article]

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