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Recyclability of PSAs when used in automotive applications in ADHESIVES AGE, Vol. 39, N° 7 (06/1996)  

[article]  inADHESIVES AGE > Vol. 39, N° 7 (06/1996) . - p. 16-18 Titre : Recyclability of PSAs when used in automotive applications Type de document : texte imprimé Année de publication : 1996 Article en page(s) : p. 16-18 Langues : Américain (ame) Catégories : Adhésifs -- Recyclage Adhésifs dans les automobiles Adhésifs sensibles à la pression Index. décimale : 668.3 Adhésifs et produits semblables Résumé : Research by Avery Dennison Specialty Tape Division has demonstrated the recyclability of pressure sensitive adhesives when recycled with compatible materials. The conclusion is useful to engineers who wish to combine flexibility in the design of automotive assemblies with environmental responsibility. Because OEM performance requirements demand permanent attachment of interior trim for the life of the car disassembly of door components and recycling of the separate parts is not practical. Therefore, recent performance research has focused on the effects of up-front designing for recyclability, and the regrinding and remolding of new parts from old parts, according to thomas C. Epple, senior research associate, Avery Dennison Specialty Tape Division. "Disassembling parts before recycling would be expensive", says Epple. "The only route to economical recycling is to process the parts as a whole and to design parts that can be recycled as a whole". Epple says suppliers of foam and vinyl used in this application are also looking at the economics of recycling. Note de contenu : - Background - Dealing with manufacturing wastes - Design for recyclability - Recycling study En ligne : https://drive.google.com/file/d/18JFa9GZnkhtQadWScAsCV4kNJd7bsM_Z/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20502 [article]

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001065	-	Périodique	Bibliothèque principale	Documentaires	Exclu du prêt

Influence of polyol unsaturation on urethane properties / Thomas Fishback in ADHESIVES AGE, Vol. 39, N° 7 (06/1996)  

[article]  inADHESIVES AGE > Vol. 39, N° 7 (06/1996) . - p. 20-23 Titre : Influence of polyol unsaturation on urethane properties Type de document : texte imprimé Auteurs : Thomas Fishback, Auteur ; Gladys Aviles, Auteur ; Curt Reichel, Auteur Année de publication : 1996 Article en page(s) : p. 20-23 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésifs en phase aqueuse Elastomères Formulation (Génie chimique) Poids moléculaires Polyols Polyuréthanes Résistance aux conditions climatiques Rhéologie Viscosité Index. décimale : 668.3 Adhésifs et produits semblables Résumé : The reduction of unsaturation in polyols used in the production of elastomeric urethane materials provides improved physical properties and environmental resistance. Diols must possess very low levels of unsaturation to be of practical benefit. In triols, even a partial reduction (50%) in unsaturation results in noticeable gains in sealant properties. Reduction of triol unsaturation to low levels provides even further gains. The combination of high molecular weight, low unsaturation triols and diols gives tough, highly extendible materials which perhaps will be competitive with silicones in the 50% movement capability sealant market. Commercialization of propylene oxide-based diols with very low unsaturation will provide a new tool for formulators. Formulators will be able to incorporate a higher molecular weight soft segment than was previously possible in elastomers. The weatherability of urethane products will benefit from the increased retention of elastomeric properties provided by polyols with lower unsaturation content. Note de contenu : - EXPERIMENTAL SEALANTS - ELASTOMERS - FILMS - RESULTS AND DISCUSSION : Sealants - Elastomers - Films - ENVIRONMENTAL RESISTANCE En ligne : https://drive.google.com/file/d/1vWx_Ar2I292-MGe-0w0IPI7rIxmPZMLy/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20503 [article]

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Tackifying resin dispersions : more than just soap and water / George J. Kutsek in ADHESIVES AGE, Vol. 39, N° 7 (06/1996)  

[article]  inADHESIVES AGE > Vol. 39, N° 7 (06/1996) . - p. 24-30 Titre : Tackifying resin dispersions : more than just soap and water Type de document : texte imprimé Auteurs : George J. Kutsek, Auteur Année de publication : 1996 Article en page(s) : p. 24-30 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésifs -- Stockage Adhésifs en phase aqueuse Antimicrobiens Antioxydants Gommes et résines Matières premières Plastifiants Procédés de fabrication Rhéologie Stabilisants (chimie) Surfactants Index. décimale : 668.3 Adhésifs et produits semblables Résumé : Resin dispersions are widely used in water based adhesives to impart specific properties. A resin dispersion is a stable heterogeneous system of resin droplets in water. The resin phase is referred to as the dispersed, internal or discontinuous phase. The surrounding water is the external or continuous phase. The diameter of the resin droplets is less than one micron. Coalescence of the particles is prevented by the repulsive force arising from like surface charges on the particles. This charge is provided by the surfactant used to emulsify the resin. Surfactants are surface active agents that decrease interfacial tension and aid the process of emulsification. Hydrocarbon resins are low-molecular-weight thermoplastic polymers derived from cracked petroleum distillates, terpene fractions, coal tar and a variety of pure monomers. They are neutral materials with [less than]1 acid number and [less than]2 saponification number. Naturally occurring rosins, rosin esters of aromatic and aliphatic alcohols, and polymerized rosins are also suitable for water-based tackifiers. A dispersion must be selected that contains a resin suited to the latex polymer, and a dispersion system compatible with that of the latex. Base resin selection is most important, since it affects characteristics of the finished adhesive, including tack, wettability, plasticization and specific adhesion. Compatibility and temperature performance properties are major considerations in selecting a base resin. A less compatible resin may be selected if the high temperature performance it provides outweighs having a fully compatible resin. Note de contenu : - PHYSICAL PROPERTIES OF DISPERSIONS : Solids content - Particle size - Specific gravity - pH - Viscosity - Grit - Mechanical stability - Ion tolerance - METHOD OF MANUFACTURE - BATCH VS CONTINUOUS EMULSIFICATION - RESIN : Hydrocarbon resins - Naturally occuring rosins - Wood rosin - Gum rosin - Tall oil rosin - Rosin esters - ANTIOXIDANTS - PLASTICIZERS - SURFACTANTS : Anionic surfactants - Cationic surfactants - Amphoteric or zwitterionic surfactants - nonionics - - PROTECTIVE COLLOIDS, THICKENERS AND ADDITIVES : Sodium carboxymethylcellulose - Gum arabic, gum karaya and guar gum - Methylcellulose - Polyvinyl alcohol - Starch - Casein - Polyacrylic acid salts - BIOCIDES - STABILITY : Steric stabilization - pH - Viscosity - Specific gravity - Particle size - Multivalent cations - Mechanical shear - Temperature - Loss of stabilizer - Surface evaporation - Biological - Intentional de-emulsification - STORAGE AND HANDLING : Shipping - Bulk storage - Temperature - Piping - Pumps - Filtration - Sampling - Chemical En ligne : https://drive.google.com/file/d/1gPFYGhY18j6DZ3mkjsZ2GY5Euqh8vXUw/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20504 [article]

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Adhesive properties : effects on selection of metering pumps / Paul Dreier in ADHESIVES AGE, Vol. 39, N° 7 (06/1996)  

[article]  inADHESIVES AGE > Vol. 39, N° 7 (06/1996) . - p. 32-41 Titre : Adhesive properties : effects on selection of metering pumps Type de document : texte imprimé Auteurs : Paul Dreier, Auteur Année de publication : 1996 Article en page(s) : p. 32-41 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Adhésifs -- Appareils et matériel Adhésifs -- Applications industrielles Matériaux -- Application-dosage Rhéologie Viscosité Index. décimale : 668.3 Adhésifs et produits semblables Résumé : Adhesives are critical to our everyday lives. In 1994 alone, 150 million pounds of adhesives will be dispensed in the automotive industry (1). Ford's new AIV (Aluminum Intensive Vehicle) relies on adhesives to make it sound. Henry Cornille, vehicle structures engineering specialist at Ford, claims "benefits include greater stability and less vibration - ultimately a quieter ride."(2) Adhesives riser in automobiles are only a small part of the industry. Adhesives are everywhere. Even bread and potato chip bags are actually two or three layers of plastic with adhesives in between. The number of these adhesives products, their physical properties and the metering pump requirements are the focus of this article. All adhesives need to be dispensed in some form. Whether they are single or multi-component, thin as water, or heavier than mud, dispensing equipment is used. The article is first look at the physical and compositional properties of adhesives and their effects on dispensing equipment. The various metering pumps will be reviewed, and their ability to handle material properties will be discussed. The article will conclude with a cross referenced chart covering additional resin parameters and how they affect machine design(Tables IV and V). Note de contenu : - MATERIAL PROPERTIES AND COMPOSITION : Viscosity - Specific gravity - Working life - Moisture sensitivity - Corrosiveness - Fillers - COMMON ADHESIVE METERING PUMPS : Positive displacement piston and road pumps - Common rod pump - Common transfer pump - Gear pumps - Other pumps En ligne : https://drive.google.com/file/d/11oCYvyRmh7WrA68eCmAFdzCX8W9MvHkq/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=20505 [article]

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
001065	-	Périodique	Bibliothèque principale	Documentaires	Exclu du prêt