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Design rules for microgel - supported adhesives / Quan Wen in Industrial & engineering chemistry research, Vol. 51 N° 28 (Juillet 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 28 (Juillet 2012) . - pp. 9564–9570 Titre : Design rules for microgel - supported adhesives Type de document : texte imprimé Auteurs : Quan Wen, Auteur ; Robert Pelton, Auteur Année de publication : 2012 Article en page(s) : pp. 9564–9570 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Microgel Résumé : The ability of carboxylated PNIPAM microgels bearing adsorbed PVAm to increase the strength of wet paper and wet cellulose film laminates was measured as a function of the microgel diameter, cross-linking degree, PVAm molecular weight, and roughness of the cellulose substrates. The experimental results and simulations from a model led to the following design rules: (1) For low microgel dosages, small microgels are better because they cover more surface; however, very small gels can get buried in pores. (2) For high microgel dosages, larger gels are better because a saturated monolayer of adsorbed large gels puts more adhesive in the joints. (3) Adhesion increases with decreasing microgel modulus (cross-linking). (4) Adhesion is not sensitive to the molecular weight of the reactive PVAm microgel coating polymer. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie3009428 [article] Design rules for microgel - supported adhesives [texte imprimé] / Quan Wen, Auteur ; Robert Pelton, Auteur . - 2012 . - pp. 9564–9570. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 28 (Juillet 2012) . - pp. 9564–9570 Mots-clés : Microgel Résumé : The ability of carboxylated PNIPAM microgels bearing adsorbed PVAm to increase the strength of wet paper and wet cellulose film laminates was measured as a function of the microgel diameter, cross-linking degree, PVAm molecular weight, and roughness of the cellulose substrates. The experimental results and simulations from a model led to the following design rules: (1) For low microgel dosages, small microgels are better because they cover more surface; however, very small gels can get buried in pores. (2) For high microgel dosages, larger gels are better because a saturated monolayer of adsorbed large gels puts more adhesive in the joints. (3) Adhesion increases with decreasing microgel modulus (cross-linking). (4) Adhesion is not sensitive to the molecular weight of the reactive PVAm microgel coating polymer. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie3009428