Colloidal, morphological, thermal, rheological, and film properties of waterborne hyberbranched alkyd-acrylic resins / Edwin A. Murillo in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 5 (09/2019)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 5 (09/2019) . - p. 1223-1232 Titre : Colloidal, morphological, thermal, rheological, and film properties of waterborne hyberbranched alkyd-acrylic resins Type de document : texte imprimé Auteurs : Edwin A. Murillo, Auteur ; Judith Percino, Auteur ; Betty L. Lopez, Auteur Année de publication : 2019 Article en page(s) : p. 1223-1232 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Angle de contact Caractérisation Colloides -- Stabilité Copolymère alkyde acrylique Polymères -- Analyse Polymères en émulsion Polymères ramifiés Potentiel zeta Rhéologie Stabilité thermique Index. décimale : 667.9 Revêtements et enduits Résumé : Waterborne hyperbranched alkyd–acrylic resins (HAAR) are interesting materials that provide excellent properties yet require only low levels of solvent in formulations using them. However, they have been scarcely studied. Therefore, the goal of this work was to prepare and evaluate various properties of HAAR. These materials were obtained by miniemulsion polymerization from a hyperbranched alkyd resin (HAR), methyl methacrylate (MMA), butyl acrylate (BA), and acrylic acid (AA). The proportions of HAR:acrylic monomers were as follow: 50:50 (HAAR1), 40:60 (HAAR2), 30:70 (HAAR3), and 20:80 (HAAR4). The particle size increased with the content of HAR, but the colloidal stability, critical deformation, zeta potential, thermal stability, and hardness followed an opposite behavior. The order of colloidal stability of the HAAR miniemulsions was HAAR4 > HAAR3 > HAAR2 > HAAR1. The particle morphology of the HAAR was mainly core–shell, but acrylic and alkyd particles were also observed. In addition, all HAAR initially exhibited a reduction in complex viscosity (η*) with the increase in angular frequency. The thermal stability of the HAR was lower than that of the HAAR. The HAAR showed better resistance against a 0.10 M sodium hydroxide (NaOH) solution than HAR. Note de contenu : - EXPERIMENTAL : Materials - Synthesis of the HAAR - Characterization - RESULTS AND DISCUSSION : IR analysis - DLS analysis - Zeta potential - Contact angle analysis - TEM analysis - TGA - Rheological analysis - Film properties DOI : 10.1007/s11998-019-00205-6 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-019-00205-6.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33006 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
21154	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 1 / 1)