Properties of solvent based polyurethane adhesives containing fumed silicas
作者： José M. Martín-Martínez , Trinidad G. Maciá-Agulló , Juan C. Fernández-García , A. césar Orgilés-Barceló , Ana Torró-Palau
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摘要: Five hydrophilic and two hydrophobic fumed silicas of different surface area particle size were added to solvent based polyurethane adhesives. Silica addition produced a noticeable increase in the adhesive viscosity, imparted negative thixotropy, increased storage modulus (G') improved green adhesion chlorinated rubber/PU adhesive/chlorinated rubber joints. Those modifications more pronounced adhesives which contain silicas.
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