Synthesis of styrene and n-butyl acrylate latex polymers modified by functional monomers and their waterborne paint applications / Gökhan Akbulut 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. 1421-1435 Titre : Synthesis of styrene and n-butyl acrylate latex polymers modified by functional monomers and their waterborne paint applications Type de document : texte imprimé Auteurs : Gökhan Akbulut, Auteur ; Hayal Bulbul Sonmez, Auteur Année de publication : 2022 Article en page(s) : p. 1421-1435 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. Adhésion Caractérisation Dureté (matériaux) Formulation (Génie chimique) Latex Matériaux -- Propriétés fonctionnelles Métaux -- Revêtements:Métaux -- Peinture Monomères Polyacryliques Polymères -- Synthèse Revêtements en phase aqueuse:Peinture en phase aqueuse Index. décimale : 667.6 Peintures Résumé : Emulsion polymerization acrylic latex polymers (in short latex polymers), crucial ingredients of waterborne paints, provide continuous film formation during the drying stage and act as one of the major factors that determine the performance of paints. Modification of latex polymers is an ongoing process to improve paint performance and it can be accomplished by various methods. In this study, styrene and n-butyl acrylate latex polymers are modified by three functional monomers (methacrylamidoethyl ethylene urea (MAEEU), dimethylaminoethyl methacrylate (DMAEMA), and glycidyl methacrylate (GMA)) alone or combined in different amounts in latex polymer formulations. Impacts of these functional monomers both on latex polymers, and paints made from these latex polymers are investigated. The characterization of the latex polymers are analyzed by differential scanning calorimetry (DSC), minimum film forming temperature (MFFT), dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FTIR), and transmission electron microscopy (TEM). Scrub resistance, whiteness, hiding power, glossiness, hardness, contact angle, adhesion on annealed glass and hot-dip galvanized steel surfaces, and color retention properties of the paints are examined. The results are compared with a nonfunctional reference and a commercial styrene-acrylic-based latex polymer, separately. The outcomes confirm that alone and the combinations of these monomers in styrene-acrylic-based latex polymers improve the paint by enhancing scrub resistance, better adhesion on surfaces and the ability to control hydrophobicity and color efficiency. Note de contenu : - EXPERIMENTAL SECTION : Materials - Synthesis of latex polymers - Preparation of the paints - Characterization of the Latex Polymers - PAINTS - RESULTS AND DISCUSSION : Characterization of latex polymers and their films - CHARACTERIZATION OF THE PAINTS - Table 1 : Materials for emulsion polymerization and paint preparation - Table 2 : The amounts of functional monomers used in formulations - Table 3 : Variables in latex polymer formulations - Table 4 : Specifications of Acronal 290D - Table 5 : Paint formulation - Table 6 : Characterization results of the reference and latex polymers with one functional monomer - Table 7 : Characterization results of the latex polymers that had at least two functional monomers - Table 8 : Characterization results of the paints - Table 9 : Hardness of the paints - Table 10 : Blister test results of the paints - Table 11 : Adhesion on hot-dip galvanized steel DOI : https://doi.org/10.1007/s11998-022-00616-y En ligne : https://link.springer.com/content/pdf/10.1007/s11998-022-00616-y.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38280 [article]

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