Hydroxyl-terminated polybutadiene liquid resins for adhesives applications / Taejun Yoo in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 24, N° 1 (01/2017)  

[article]  inADHESIVES & SEALANTS INDUSTRY (ASI) > Vol. 24, N° 1 (01/2017) Titre : Hydroxyl-terminated polybutadiene liquid resins for adhesives applications : Hydroxyl-terminated polybutadiene resin-based polyurethane elastomers offer solutions to strenuous applications in the sealants and adhesives market Type de document : texte imprimé Auteurs : Taejun Yoo, Auteur ; Herbert Chao, Auteur Année de publication : 2017 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésifs dans les équipements électriques/électroniques Colles:Adhésifs Contraintes thermiques Elastomères Encapsulation Formulation (Génie chimique) Hydrostabilité Joints d'étanchéité Mastics Polybutylène téréphtalate Polymères à terminaison hydroxyle Polyuréthanes Index. décimale : 668.3 Adhésifs et produits semblables Résumé : Hydroxyl-terminated polybutadiene (HTPB) resins occupy a unique space within the landscape of commercially available polyols in the context of polyurethane elastomers. Characterized by low temperature flexibility, hydrophobicity and hydrolytic stability, polyurethane elastomers present solutions to strenuous applications in the adhesives and sealants market. Due to the hydrocarbon nature of the polymer backbone, these elastomers also have extremely low dielectric constant, dissipation factor, and moisture vapor transmission rate (MVTR) properties. With the fast growth of the information industry, electronic products such as mobile phones, personal digital assistants and notebooks have become daily necessities for many of us. Multifunctional urethane (meth)acrylates derived from hydrogenated HTPB resins, which have excellent properties against oxidation and a relatively high refractive index of about 1.5, have gradually established their use as essential ingredients in UV-cured compositions in a clear optical index-matched adhesive for the bonding of two or more optical components together. Note de contenu : - Encapsulants - Hydrolytic Stability - Thermal shock/embedment stress - Low exotherm and minimal shrinkage - Liquid optically clear adhesive - Ideal ingredients - FIGURES : 1. Chemical modification of HTPB - 2. MVTR of encapsulation resins - 3. Schematic diagram of IGU TABLES : 1. Differences between anionically and radically of polymerized HTPB resins - 2. Series A resin system for encapsulant - 3. Starting point formulation using series A resin R-45HTLO as the base resin for an insulating glass window sealant En ligne : http://www.adhesivesmag.com/articles/95157-hydroxyl-terminated-polybutadiene-liq [...] Format de la ressource électronique : Web Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28763 [article]

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