Properties of solvent based polyurethane adhesives containing fumed silicas

Five hydrophilic and two hydrophobic fumed silicas of different surface area and particle size were added to solvent based polyurethane adhesives. Silica addition produced a noticeable increase in the adhesive viscosity, imparted negative thixotropy, increased the storage modulus (G') and impro...

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Published inMacromolecular symposia. Vol. 108; no. 1; pp. 269 - 278
Main Authors Martín-Martínez, José M, Maciá-Agulló, Trinidad G, Fernández-García, Juan C, Orgilés-Barceló, A. césar, Torró-Palau, Ana
Format Journal Article
LanguageEnglish
Published Hüthig & Wepf Verlag 01.05.1996
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Summary:Five hydrophilic and two hydrophobic fumed silicas of different surface area and particle size were added to solvent based polyurethane adhesives. Silica addition produced a noticeable increase in the adhesive viscosity, imparted negative thixotropy, increased the storage modulus (G') and improved the green adhesion of chlorinated rubber/PU adhesive/chlorinated rubber joints. Those modifications were more pronounced in the adhesives which contain hydrophilic silicas.
Bibliography:http://dx.doi.org/10.1002/masy.19961080122
ISSN:1022-1360
1521-3900
DOI:10.1002/masy.19961080122