Ana Torro

• Head of Department at INESCOP Footwear Technological Institute

The possibility of incorporating nanotubes to adhesives opens a new range of innovative solutions, due to their unique structure and properties. In this sense, the objective of this work is the addition of carbon nanotubes (CNTs) to waterborne polyurethane adhesives (WBPU) to improve their rheological, viscoelastic, thermal and mechanical propertie...

In this study, the properties of water-based adhesives based on a polyurethane ionomer (PUD) and a micronised CaCO3 as filler was analysed. Different amounts of a micronised CaCO3 (5-25 wt%) were added to water-based polyurethane (PUD) adhesive formulations in order to reduce its relatively high cost. The addition of a micronised calcium carbonate...

Four silicas, two fumed silicas (one hydrophilic and one hydrophobic) and two precipitated silicas (one hydrophilic and one hydrophobic), were added as filler to solvent-based polyurethane (PU) adhesive formulations. In general, the addition of silica increased the viscosity, the storage and loss moduli of the PU adhesives but only the hydrophilic...

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 adhesiv...

Resumen. Los adhesivos más utilizados en la industria del calzado son los adhesivos de poliuretano y policloropreno en base disolvente orgánico. Sin embargo, el uso de estos adhesivos conlleva una serie de riesgos, entre los que destacan las repercusiones medioambientales y los efectos perniciosos para la salud de los trabajadores, como consecuenci...