Fine art of surfacing / Virenda V. Shah in ADHESIVE TECHNOLOGY, Vol. 18, N° 2 (06/2001)

[article]  inADHESIVE TECHNOLOGY > Vol. 18, N° 2 (06/2001) . - p. 22-24 Titre : Fine art of surfacing Type de document : texte imprimé Auteurs : Virenda V. Shah, Auteur Année de publication : 2001 Article en page(s) : p. 22-24 Langues : Anglais (eng) Catégories : Adhésifs en phase aqueuse Adhésifs sensibles à la pression Formulation (Génie chimique) Mouillage (chimie des surfaces) Rhéologie Tension superficielle Viscosité Index. décimale : 668.3 Adhésifs et produits semblables Résumé : Flammability and health issues associated with solvent-based adhesives have led to increased use of waterborne adhesives, raising the profile of surfactants. Solvent-based adhesives have a low surface tension that gratly enhances their wetting to low-energy surfaces. However, these adhesives are high in volatile organic compounds (VOCs), and have flammability and health issues. Over the past two decades, the PSA market has shown a continued shift from solvent- to water-based systems. Coating methods also evolved during the growth of PSA and laminating adhesive products in the past 10 years. As a result of this shift, the adhesive formulator faces several challenges. These are effective high speed/dynamic wetting, foam control, minimum impact on adhesive properties and good application rheology. Note de contenu : - Overview and classification - Waterborne adhesives - Substrate wetting - Dynamic surface tension - Formulations - Viscosity response - Table 1 : Surface tension of various liquids and solids - Table 2 : Equilibrium and dynamic surface tension comparison of surfactants - Table 3 : Adhesive formulation properties and coating conditions as a function of coater type - Table 4 : Wet laminating adhesive formulation - Table 5 : Pressure-sensitive adhesive formulation - Table 6 : Pressure-sensitive adhesive formulation viscosity response with various wetting agents - Table 7 : equilibrium and dynamic surface tension of laminating adhesives Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37344 [article]

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