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PUR adhesives offer solutions for assembly challenges / Dennis De Gray in ADHESIVES AGE, Vol. 41, N° 5 (05/1998)  

[article]  inADHESIVES AGE > Vol. 41, N° 5 (05/1998) . - p. 23-24 Titre : PUR adhesives offer solutions for assembly challenges Type de document : texte imprimé Auteurs : Dennis De Gray, Auteur Année de publication : 1998 Article en page(s) : p. 23-24 Langues : Américain (ame) Catégories : Adhésifs thermofusibles Colles:Adhésifs Polyuréthanes Résistance à l'humidité Résistance thermique Réticulation à l'humidité Index. décimale : 668.3 Adhésifs et produits semblables Résumé : For certain applications requiring unusually high bond strength or fast setup time, or where a substrate is subjected to extreme temperature or humidity, polyurethane reactive (PUR) adhesives are finding many new uses. The versatile performance of PUR provides an effective solution for unusual assembly challenges. This material's strength maintains the structural integrity of bonded joints during years of harsh service. As a 100% solids, moisture-curing material, PUR reacts when exposed to ambient humidity and crosslinks into a permanent structure. In addition to the chemistry, the open time of this adhesive is dependent, to a significant extent, on the thermal conductivity of the substrate being coated. The open time with metals may be short, whereas for wood, high pressure laminates, foamed plastics and other substrates possessing good insulating qualities, the open time may range up to five minutes. Once a substrate is PUR wetted, the parts should be joined rapidly to gain an optimum bond. A full cure typically occurs in one to three days, continually strengthening the bond to far surpass the strength and environmental durability of convertional hot melts. When fully cured, PUR demonstrates an ability to withstand high temperatures and humidity. It Is resistant to many oils, solvents, acids and plasticizers. The material is solvent-free and non-flammable, although precautions must be taken to properly ventilate PUR application areas in order to control isocyanate vapor concentrations. A lower application temperature facilitates the bonding of temperature-sensitive substrates not ordinarily bondable with high temperature hot melts. Note de contenu : - Constantly expanding applications - Advances in applicator equipment - PUR applications call for a team effort En ligne : https://drive.google.com/file/d/1a9jSw-Gil3ixb5uTAb57yKvcwgyQO7ur/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20249 [article]

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
001087	-	Périodique	Bibliothèque principale	Documentaires	Exclu du prêt

WB, 100% solids adhesives for flexible packaging provide solvent alternative / Peter A. Voss in ADHESIVES AGE, Vol. 41, N° 5 (05/1998)  

[article]  inADHESIVES AGE > Vol. 41, N° 5 (05/1998) . - p. 26-29 Titre : WB, 100% solids adhesives for flexible packaging provide solvent alternative Type de document : texte imprimé Auteurs : Peter A. Voss, Auteur Année de publication : 1998 Article en page(s) : p. 26-29 Langues : Américain (ame) Catégories : Adhésifs en phase aqueuse Dispersions et suspensions Polyacryliques Polymères en émulsion Polyuréthanes Index. décimale : 668.3 Adhésifs et produits semblables Résumé : As the governmental regulations to reduce VOC emissions become more and more stringent, film laminating converters are faced with several choices that enable them to comply with the new laws. Polyurethane dispersions and acrylic emulsions are viable alternatives to conventional solvated products and, when reacted with H. B. Fuller's proprietary crosslinkers, they have properties that often exceed the solventborne systems. In addition, third generation solventless adhesives are an alternative technology to dry bond laminating that also enables a converter to meet rapidly changing environmental and perdormance standards. Note de contenu : - Waterborne adhesives - Polyurethane dispersions - Acrylic emulsions - Crosslinking chemistry - Solventless adhesives - First generation adhesives - Second generation adhesives - Third generation adhesives En ligne : https://drive.google.com/file/d/1mXY_GCRpYee9WsDn5C4uCcwZnLOmJ7kG/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20250 [article]

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
001087	-	Périodique	Bibliothèque principale	Documentaires	Exclu du prêt

Epoxy adhesive and cartridge dispenser facilitate SMC panel repair in ADHESIVES AGE, Vol. 41, N° 5 (05/1998)  

[article]  inADHESIVES AGE > Vol. 41, N° 5 (05/1998) . - p. 30 Titre : Epoxy adhesive and cartridge dispenser facilitate SMC panel repair Type de document : texte imprimé Année de publication : 1998 Article en page(s) : p. 30 Langues : Américain (ame) Catégories : Adhésifs -- Appareils et matériel Carrosseries -- Entretien et réparations Cartouches (emballages) Epoxydes Matériaux -- Application-dosage Index. décimale : 668.3 Adhésifs et produits semblables Résumé : To repair truck body panels made from sheet molding compound (SMC) quickly and effectively, Triad Freightliner of Greensboro, N.C., relies on high performance epoxy adhesives. This article, supplied by Ciba Specialty Chemicals, Performance Polymers, East Lansing, Mich., describes how their Araldite epoxy systems(*) are specially designed to bond SMC substrates. The systems produce longlasting, sag-resistant joints that can withstand exposure to environmental extremes and the vibration to which trucks, buses and other mass transit vehicles are exposed. The adhesives are also easy to use because they are supplied in 200 ml cartridges that provide for precise mixing and easy, low-waste application using Liquid Control's Supermix II cartridge dispensing system. Note de contenu : - Hood panel replacement - Crack repair En ligne : https://drive.google.com/file/d/1uyhlqOX0ej04c2HnU52R9aovodCTYRhw/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20308 [article]

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
001087	-	Périodique	Bibliothèque principale	Documentaires	Exclu du prêt