Accueil
Détail de l'auteur
Auteur Jay A. Johnston |
Documents disponibles écrits par cet auteur
Ajouter le résultat dans votre panier Affiner la recherche
Polyurethane sealants lead to energy savings / Jay A. Johnston in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 21, N° 3 (03/2014)
[article]
inADHESIVES & SEALANTS INDUSTRY (ASI) > Vol. 21, N° 3 (03/2014)
Titre : Polyurethane sealants lead to energy savings Type de document : texte imprimé Auteurs : Jay A. Johnston, Auteur ; Georges Z. Pavlovich, Auteur ; Shen Tian, Auteur Année de publication : 2014 Langues : Américain (ame) Catégories : Economies d'énergie
Imperméabilisation
Joints d'étanchéité
Mastics
Polyuréthanes
Réticulation à l'humiditéIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Bridging the gaps in a building can bring significant heating and cooling savings.
Using a polyurethane sealant to bridge the gaps in a home or other type of building can bring significant heating and cooling savings through reduced energy usage. In this case, application of a polyurethane sealant in a 1955 Colonial home in the Pittsburgh area reduced airflow by 25% based on before and after blower door testing. As this LCA demonstrates, the seemingly simple act of sealing a home’s drafts can lead to benefits that extend well beyond that individual home or building.Note de contenu : - Location and home condition
- Initial testing and sealant application
- Results
- Far-reaching benefitsEn ligne : http://www.adhesivesmag.com/articles/92689-case-study-polyurethane-sealants-lead [...] Format de la ressource électronique : Web Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23067 [article]Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire Toughening epoxy adhesives / Jay A. Johnston in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 20, N° 7 (07/2013)
[article]
inADHESIVES & SEALANTS INDUSTRY (ASI) > Vol. 20, N° 7 (07/2013) . - p. 14-17
Titre : Toughening epoxy adhesives : The addition of a polyurethane segment into the epoxy polymer improves strength and heat resistance for commercial epoxy adhesives Type de document : texte imprimé Auteurs : Jay A. Johnston, Auteur Année de publication : 2013 Article en page(s) : p. 14-17 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Colles:Adhésifs
Epoxydes
Matériaux hybrides
Polyuréthanes
Résistance chimique
Résistance thermiqueIndex. décimale : 668.3 Adhésifs et produits semblables Résumé : Due to their different physical properties, epoxy adhesives and polyurethane adhesives are sold into different segments of the adhesives market. Epoxy adhesives are targeted for applications requiring rigidity, solvent resistance and ultra-high-temperature resistance. Polyurethane adhesives are targeted for applications requiring toughness, processing flexibility, tunable cure rates, low-temperature cure and adhesion to many different substrates.
While the hybridization of epoxy and polyurethane technology is not a new concept for coating applications, the hybridization of adhesives is not as common. Commercial epoxy adhesives face several challenges that can be remedied by hybridizing these two technologies. The most important improvement to epoxies is a reduction in brittleness, which comes from the inherently high crosslink density of epoxy chemistry.Note de contenu : - Epoxy strengthening methods
- Epoxy chemistry
- Blocked polyurethane prepolymers
- Strength development
- Softening point determination
- Testing modified adhesives
- Performance improvementsEn ligne : http://www.adhesivesmag.com/articles/92072-toughening-epoxy-adhesives Format de la ressource électronique : Web Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19047 [article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 15348 - Périodique Bibliothèque principale Documentaires Disponible