Preparation of UV curable emulsions using PEG-modified urethane acrylates and their coating properties / Myung-Eon Song in JOURNAL OF COATINGS TECHNOLOGY (JCT), Vol. 68, N° 862 (11/1996)

[article]  inJOURNAL OF COATINGS TECHNOLOGY (JCT) > Vol. 68, N° 862 (11/1996) . - p. 43-50 Titre : Preparation of UV curable emulsions using PEG-modified urethane acrylates and their coating properties Type de document : texte imprimé Auteurs : Myung-Eon Song, Auteur ; Ju-Young Kim, Auteur ; Kyung-Do Suh, Auteur Année de publication : 1996 Article en page(s) : p. 43-50 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Copolymère uréthane acrylate Copolymères réticulés Formulation (Génie chimique) Liants Polyéther uréthane Polyéthylène glycol Revêtements en phase aqueuse -- Séchage sous rayonnement ultraviolet:Peinture en phase aqueuse -- Séchage sous rayonnement ultraviolet Revêtements en phase aqueuse:Peinture en phase aqueuse Surfactants Index. décimale : 667.9 Revêtements et enduits Résumé : To prepare self-emulsifiable urethane acrylate, PEG-modified urethane acrylates (PMUA) containing polyoxyethylene groups as a terminal group were synthesized by the reaction of PEG [poly(ethylene glycol)] with residual isocyanate groups of a urethane acrylate. As the reaction molar ratio of PEG to HEMA increased, droplet sizes and viscosity of PMUA emulsions decreased, however, the tensile strength and conversion of UV-cured PMUA film decreased. The molecular weight and type polyol had a significant influence on emulsion droplet size and stability. The coating properties and mechanical properties of the UV-cured film were improved by using crosslinking agent and epoxy acrylate. However, centrifugal stability was decreased by the addition of these additives. Note de contenu : - EXPERIMENTAL : Synthesis of PMUA and UA - Preparation of UV-curable formulations - Measurement - Characterization of coating properties - RESULTS AND DISCUSSION : UA emulsions prepared using mixed surfactants - Soap-free emulsion of PMUA - The effect of crosslinking agent (CA) and epoxy acrylate (EA) Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=18454 [article]

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