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)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 20, N° 1 (01/2023) . - p. 291-305 Titre : Facile fabrication of superhydrophobic nanocomposites coating materials using nanoemulsion polymerization technique and its application for protecting the petroleum carbon steel pipelines Type de document : texte imprimé Auteurs : M. R. Noor El-Din, Auteur ; A. I. Hashem, Auteur ; R. E. Morsi, Auteur ; A. Abd El-Azeim, Auteur ; Reham H. Mohamed, Auteur Année de publication : 2023 Article en page(s) : p. 291-305 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Acier au carbone 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 Copolymère styrène acétate de vinyle Dioxyde de silicium Dip-coating Fourier, Spectroscopie infrarouge à transformée de Hydrophobie Lumière -- Diffusion Métaux -- Revêtements protecteurs Nanoémulsions Nanoparticules Polymérisation en émulsion Sol-gel, Procédé Index. décimale : 667.9 Revêtements et enduits Résumé : This paper aims to fabricate new superhydrophobic nanocomposite coating materials to protect the inner surfaces of the petroleum pipelines from corrosion. The batch emulsification polymerization technique (BEM) was used as a facial eco-friendly technique to prepare three hydrophobic (styrene/vinyl acetate) copolymers. The sol–gel method was used to prepare SiO2 nanoparticles (SiO2-NPs) with average size ranging from 90 to 101 nm. The functionalized SiO2-NPs were prepared using hexadecyl trimethoxy silane (HDTS) as a precursor to increasing the hydrophobicity character of the unfunctionalized SiO2-NPs. Three superhydrophobic [(styrene/vinyl acetate copolymer/functionalized SiO2 nanoparticles (SiO2NPs)] nanocomposites denoted as M1, M3, and M5 were fabricated by incorporating 1, 3, and 5 wt% of the functionalized-SiO2NPs into the styrene/vinyl acetate copolymer, respectively. The effectiveness of the fabricated nanocomposite coating materials was analyzed using contact angle measurement and transmission electron and atomic force microscopies. The results showed that the highest contact angle of 161.21o was obtained by M5-nanocomposite. The highest corrosion efficiency of 99.63% was obtained at 300 ppm concentration of M5-nanocomposite-coated solution, 298 K, and 24 days. Note de contenu : - MATERIALS AND METHODS : Materials - Petroleum produced water - Methods - RESULTS AND DISCUSSION : FTIR spectroscopy analysis of C3-copolymer - Dynamic light scattering (DLS) measurements - Preparation of unfunctionalized Si2O-NPs - Fabrication of superhydrophobic nanocomposites - Assessment of the coated coupons as anticorrosion material - Table 1 : Contact angle (θ) measurements of uncoated and coated carbon steel with (C3-copolymer), (E-silicate), and (M1-, M2-, M3-composites) at different concentrations of E-silicate as (0), (3), and (1, 3, and 5) wt %, respectively - Table 2 : Inhibition efficiency (η) and the corrosion rate of uncoated and coated coupons for C3-copolymer and M5-composite concentration of 100 ppm and (100, 200, and 300 ppm), respectively, 298 K, and 24 days - Table 3 : Activation energy (Ea) of uncoated and coated carbon steel coupons with C3-copolymer and M5-composite at 0, 100, and 100 ppm, respectively, and different temperatures of 298, 313 and 333 K DOI : https://doi.org/10.1007/s11998-022-00669-z En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00669-z.pdf?pdf=button% [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38843 [article]

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